Alaska Forage Manual - Alaska Plant Materials Center - State of ...
Alaska Forage Manual - Alaska Plant Materials Center - State of ...
Alaska Forage Manual - Alaska Plant Materials Center - State of ...
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<strong>Alaska</strong> <strong>Forage</strong> <strong>Manual</strong>
Any use <strong>of</strong> trade, firm, or product names is for descriptive purposes<br />
only and does not imply endorsement by any employee or<br />
branch <strong>of</strong> the <strong>State</strong> <strong>of</strong> <strong>Alaska</strong>. All photographs are copyright <strong>of</strong> their<br />
respective owners.<br />
Published November, 2012:<br />
2 nd Printing: May, 2012:<br />
<strong>State</strong> <strong>of</strong> <strong>Alaska</strong><br />
Department <strong>of</strong> Natural Resources<br />
Division <strong>of</strong> Agriculture<br />
<strong>Plant</strong> <strong>Materials</strong> <strong>Center</strong><br />
5310 S. Bodenburg Spur Rd.<br />
Palmer, AK 99645<br />
This publication was funded<br />
in part by a grant from the<br />
United <strong>State</strong>s Department <strong>of</strong><br />
Agriculture, Natural Resource<br />
Conservation Service.<br />
Front Cover: Hay field near Palmer, <strong>Alaska</strong><br />
Cover Photo: <strong>Alaska</strong> Division <strong>of</strong> Agriculture
<strong>Alaska</strong> <strong>Forage</strong> <strong>Manual</strong><br />
By<br />
Casey L. Dinkel & Philip K. Czapla<br />
Layout and Design: Brennan Veith Low<br />
Above: Casey Dinkel at the Arctic Circle monument on the Dalton Highway<br />
At right: Phil Czapla in Barrow, <strong>Alaska</strong>
Foreword
Section A. Background<br />
• Introduction<br />
• <strong>Forage</strong> and <strong>Alaska</strong><br />
• <strong>Forage</strong> Types<br />
• <strong>Forage</strong> and Animals
Introduction<br />
Photo: Casey Dinkel, AK PMC<br />
Hay field near Fox River flats - Homer, <strong>Alaska</strong><br />
The <strong>Alaska</strong> <strong>Forage</strong> <strong>Manual</strong> was created through a joint agreement between the<br />
USDA Natural Resource Conservation Service (NRCS) and the <strong>Alaska</strong> <strong>Plant</strong> <strong>Materials</strong><br />
<strong>Center</strong> (PMC). The project was designed to synthesize and build upon existing information<br />
about forage crops in <strong>Alaska</strong>. A wealth <strong>of</strong> knowledge from many different<br />
sources has been compiled in this publication to serve present and future managers<br />
<strong>of</strong> livestock and wildlife operations, as well as local agencies.<br />
The goal <strong>of</strong> this manual is to introduce grasses, legumes and cereal crop species<br />
which are commonly planted to provide forage for grazing livestock. <strong>Forage</strong> species<br />
are those seeded on a pastureland and then grazed fresh or harvested for hay, silage<br />
or haylage.<br />
An important distinction can be made between pastureland and rangeland. Generally,<br />
pastureland is managed and agronomic inputs such as fertilizer and irrigation are<br />
applied to maintain native or introduced species. This is most <strong>of</strong>ten not the case with<br />
rangeland.<br />
For the purposes <strong>of</strong> this manual, <strong>Forage</strong> is defined as: “Herbaceous grasses and legumes<br />
available and acceptable to grazing animals, or that may be harvested for<br />
feed purposes” (TN <strong>Plant</strong> <strong>Materials</strong> NO. 28, 2001). Depending on location, climate,<br />
soil type, and management goals, a different forage species may be better adapted to<br />
the site than what was traditionally used.<br />
It is the authors’ intention that those who have traditionally used only brome and<br />
timothy as their primary forage species will consider trying something different with<br />
their next planting.<br />
1
Target Audience<br />
The intended audience for this manual is primarily<br />
managers <strong>of</strong> livestock and wildlife operations. This<br />
manual may also be useful to local organizations<br />
and government agencies interested in the conservation<br />
value <strong>of</strong> forage species. This book is prepared<br />
with the assumption that the primary goal <strong>of</strong><br />
planting will be to improve and increase forage for<br />
livestock or wildlife.<br />
Content <strong>of</strong> <strong>Manual</strong><br />
This manual has been designed to take the user<br />
through sequential order from briefly introducing<br />
agriculture in <strong>Alaska</strong>, forage types and animals, and<br />
then proceeding to crop establishment and finally<br />
forage species pr<strong>of</strong>iles.<br />
Section A. Background<br />
• Introduction<br />
• <strong>Forage</strong> and <strong>Alaska</strong><br />
• <strong>Forage</strong> Types<br />
• <strong>Forage</strong> and Animals<br />
Section B. Crop Establishment<br />
• Planning<br />
• Goals & Objectives<br />
• Evaluating Site Conditions<br />
• Selection <strong>of</strong> Species<br />
• <strong>Plant</strong>ing Choice<br />
• <strong>Plant</strong>ing Method<br />
• Site Preparation<br />
• <strong>Plant</strong>ing Time<br />
Section C. <strong>Plant</strong> Pr<strong>of</strong>iles<br />
• Grasses<br />
• Cereal Grains<br />
• Legumes<br />
Section A - Background:<br />
A brief introduction to <strong>Alaska</strong> agriculture, along<br />
with the forage types and animals found consuming<br />
forage in <strong>Alaska</strong>.<br />
Section B - Crop Establishment:<br />
Organized to allow a user to understand cultural<br />
practices essential for a successful crop stand. The<br />
project planning chapter covers determining goals<br />
and objectives and evaluating site conditions like soil<br />
pH and texture. This section also will guide the reader<br />
through some introductory principles to ensure a<br />
successful planting such as site preparation, application<br />
methods to apply plant material, weed control,<br />
and time <strong>of</strong> planting.<br />
Section C - <strong>Plant</strong> Pr<strong>of</strong>iles:<br />
Twenty-four plant species make up the foundation<br />
<strong>of</strong> this manual. Species were chosen based on their<br />
forage attributes and ability to survive and thrive in<br />
<strong>Alaska</strong>’s diverse regions. The forage value, general<br />
morphological characteristics and management <strong>of</strong><br />
each individual species is detailed. Also accompanying<br />
each pr<strong>of</strong>ile is a table listing plant characteristics<br />
such as average height, drought tolerance and pH<br />
range. The regions <strong>of</strong> <strong>Alaska</strong> to which a plant species<br />
is adapted are shown on a color-coded map.<br />
Section D - Additional Information:<br />
Glossary, works cited and appendices, including<br />
a nutrient study <strong>of</strong> forage grasses during different<br />
growth stages and <strong>State</strong> <strong>of</strong> <strong>Alaska</strong> Prohibited & Restricted<br />
Noxious weeds.<br />
Section D. Additional Information<br />
• Appendix A: Nutrient Study<br />
• Appendix B: Seed Specifications<br />
• Appendix C: Noxious Weeds<br />
• Glossary<br />
• Works Cited<br />
2
<strong>Forage</strong> and <strong>Alaska</strong><br />
Photo: Casey Dinkel, AK PMC<br />
Hay bales are stored in a pole barn in Delta Junction, to protect them from weather.<br />
Approximately 20,000 acres <strong>of</strong> hay are harvested each year in <strong>Alaska</strong>.<br />
<strong>Alaska</strong> is a vast state, with a diversity <strong>of</strong> environmental conditions. It is also an enormous<br />
state - 1/5 th the size <strong>of</strong> the contiguous lower 48 states. There is not an abundance<br />
<strong>of</strong> producing farmland, however. Of the 366 million acres in <strong>Alaska</strong>, about 900,000<br />
acres are farmland. The majority <strong>of</strong> this farmland - 737,746 acres, is used as pasture.<br />
From an agricultural standpoint, <strong>Alaska</strong> ranks near the bottom <strong>of</strong> U.S. agricultural<br />
production. The top 5 agriculture commodities reported in <strong>Alaska</strong> for 2010 were:<br />
Ag. Commodity Type Value <strong>of</strong> Receipts % <strong>of</strong> AK Total Farm Receipts<br />
Greenhouse/nursery $13.0 million 42.3%<br />
Hay $4.1 million 13.2%<br />
Cattle and calves $2.4 million 7.9%<br />
Potatoes $2.4 million 7.7%<br />
Dairy products $1.6 million 5.2%<br />
- All other commodities - $7.3 million 23.7%<br />
All Commodities $30.8 million 100%<br />
Data: <strong>Alaska</strong> Agricultural Statistics 2010 - USDA National Agricultural Statistics Service<br />
3
Regions<br />
For the purposes <strong>of</strong> this manual, <strong>Alaska</strong> is broken<br />
into several regions: Arctic, Western, Interior, Southcentral,<br />
Southwest and Southeast. These regions<br />
vary widely in climate. Agricultural lands are located<br />
in primarily two regions; the Matanuska and Susitna<br />
Valleys in Southcentral, and the Tanana Valley east <strong>of</strong><br />
Fairbanks in the Interior. The Matanuska Valley has<br />
mild summers and moderate winters, while the Tanana<br />
Valley is more extreme with hot summers and<br />
very cold winters.<br />
Western<br />
Southwest<br />
Arctic<br />
Interior<br />
Southcentral<br />
Southeast<br />
Major Agriculture Areas in <strong>Alaska</strong><br />
• Copper <strong>Center</strong> / Kenny Lake<br />
• Fairbanks<br />
• Delta Junction<br />
• Nenana<br />
• Talkeetna / Trapper Creek<br />
• Palmer<br />
• Wasilla / Point MacKenzie<br />
• Kenai<br />
• Homer<br />
4<br />
Agricultural parcels in <strong>Alaska</strong> are clustered around the Matanuska, Susitna and Copper river drainages in the south and the<br />
Tanana and Yukon flats in the north. Farms also exist on Kodiak Island and on the Kenai Peninsula.
Agricultural parcels in Interior <strong>Alaska</strong> are centered around Fairbanks, Delta Junction, and Nenana.<br />
Agricultural parcels in Southcentral <strong>Alaska</strong> cluster around Palmer and Talkeetna, as well as Copper <strong>Center</strong> and Homer.<br />
5
<strong>Forage</strong> Types<br />
Photo: <strong>Alaska</strong> Division <strong>of</strong> Agriculture<br />
A farm near Palmer<br />
<strong>Forage</strong> crops can be consumed fresh when grazed by animals in a pasture setting.<br />
<strong>Forage</strong>s can also be harvested, cured, and preserved in many forms for future use.<br />
<strong>Forage</strong> can be baled into different shapes and sizes and/or stored as silage. Hay is a<br />
major source <strong>of</strong> fodder for the livestock industry during the dormant season.<br />
Animals prefer plants in the early growth stage (vegetative or boot) when the nutritional<br />
content <strong>of</strong> the plant is the highest. For hay and silage purposes, the best compromise<br />
between quality and yield occurs when the hay is harvested before flowering.<br />
The leaves <strong>of</strong> most forage species have the highest nutritional content. The stem<br />
is <strong>of</strong> lower quality due to higher concentrations <strong>of</strong> lignin, cellulose and hemicelulose.<br />
Crops for use as silage are placed in a pit or silo to begin the ensiling process. An<br />
anaerobic environment is necessary to maintain the good feed quality that can be<br />
achieved with silage.<br />
The period when forage is actively growing and nutritious in <strong>Alaska</strong> is considerably<br />
shorter than the lower 48, due to <strong>Alaska</strong>’s short growing season. Therefore the identification<br />
<strong>of</strong> species growth stages, and the proper timing <strong>of</strong> animal placement on pasture<br />
needs to be managed carefully. Improper management could result in a missed<br />
cutting for a hay crop, requiring supplemental feed to balance animal’s diet. Animals<br />
placed on the pasture when the forage conditions are least favorable (flowering, seed<br />
ripening stage) may not get the full nutrient potential <strong>of</strong> the forage crop.<br />
6
Grazing Pasture<br />
Hay Cropping<br />
Photo: <strong>Alaska</strong> Division <strong>of</strong> Agriculture<br />
Cattle graze on pasture land in Southcentral <strong>Alaska</strong>.<br />
Pasture is land with vegetation cover consisting<br />
<strong>of</strong> grasses and legumes used for livestock<br />
in a farm setting. Pastureland can also be used<br />
by wild animals for grazing or browsing purposes.<br />
In most cases, cultivated forage crops produce<br />
higher yields than most native forages.<br />
Crops are consumed during different stages <strong>of</strong><br />
growth.<br />
Control and regulation <strong>of</strong> grazing intensity,<br />
timing, frequency and selectivity are dictated<br />
by the producer to control the effects <strong>of</strong> grazing<br />
animals on plants (Holechek, Pieper & Herbel,<br />
2004, p. 127). A study from Owen et al. 1998<br />
found that a high intensity overgrazed pasture<br />
ultimately causes plant death. It was found that<br />
grasses can be grazed without damage if 50% to<br />
70% <strong>of</strong> the leaf and stem material by weight is<br />
left intact as a metabolic reserve. The remaining<br />
30% to 50% is considered “surplus” that can<br />
be consumed.<br />
Photo: Cindy Gallagher, AK PMC<br />
Bales <strong>of</strong> hay typically contain 10 to 20% moisture.<br />
Hay is a major source <strong>of</strong> fodder for the livestock<br />
industry during the dormant season.<br />
Grasses, legumes, or other herbaceous plants<br />
are <strong>of</strong>ten used as a hay source. At roughly 25%<br />
moisture content - plants are cut, left to cure or<br />
wilt in the field and then processed into bales.<br />
Hay is then used as animal feed when grazing<br />
pasture is unavailable due to cold temperatures<br />
or when animals are kept in a barn or other enclosed<br />
area.<br />
Hay is sensitive to weather conditions which<br />
can play a large role in the quality <strong>of</strong> the product.<br />
If harvested in a drought year, plant quality<br />
and hay production may be diminished. In wet<br />
weather, the cut hay may spoil prior to baling<br />
or develop rot and mold once baled. Potential<br />
toxins then become a concern, as animals can<br />
become sick if they are fed spoiled hay. Musty<br />
and/or mildewy odors indicate the presence <strong>of</strong><br />
mold within hay.<br />
Photo: Casey Dinkel, AK PMC<br />
At left:<br />
Hay bales can be subject to free grazing by<br />
moose if not protected or stored properly.<br />
7
Silage Cropping<br />
Haylage<br />
Photos: Casey Dinkel, AK PMC<br />
Silage is stored in an anaerobic environment to promote fermentation.<br />
Typical moisture content ranges from 40% - 60%.<br />
Ensiling is a process that involves taking fairly wet<br />
(moisture level between 40-60%) early growth green<br />
forage and putting it into silos or pits under airtight,<br />
anaerobic conditions. If moisture conditions get any<br />
higher, clostridial bacteria may grow. The harvested<br />
crop must be well chopped and placed in a pit and<br />
packed tightly together, driving out air so the anaerobic<br />
fermentation process can begin. Fermentation<br />
will produce lactic acid, converting the high moisture<br />
forage plants to a stored energy food source.<br />
Producers may choose to routinely produce silage,<br />
or produce silage only when field drying is difficult<br />
or impossible. A more informative in-depth article<br />
about the ensiling process was written by the Iowa<br />
<strong>State</strong> University - Cooperative Extension Service,<br />
and can be located at the following address: www.<br />
extension.iastate.edu/Publications/PM417H.pdf.<br />
These large hay bales have an average moisture content<br />
between 20% and 40%. These bales are known as haylage or<br />
sometimes called ‘Sweet Hay’.<br />
The ensiling process for haylage follows silage and<br />
only really differs in the lower moisture content.<br />
Crops are ensiled at 20-40% moisture. Slight variations<br />
in moisture percentage may affect the desired<br />
outcome. When moisture content at harvest time<br />
is too low, the crop becomes too dry for harvesting<br />
and storage <strong>of</strong> haylage. At this stage, making the<br />
transition to a hay crop is advised.<br />
Photo: Todd Paris, UAF<br />
Advantages<br />
• Lower chance <strong>of</strong> weather delays and weather<br />
related damage during harvest;<br />
• Lower field, harvest, and storage loss; and<br />
• Provides flexibility and is adapted for many<br />
feeding programs.<br />
Evaluating Silage<br />
Individual round haylage bales stored for future use<br />
Disadvantages<br />
• <strong>Forage</strong> content is high in moisture, resulting in<br />
heavier forage that is difficult to haul;<br />
• Specialized equipment for harvesting, storing,<br />
and feeding may be needed;<br />
• Potential for high losses if silage is not properly<br />
made; and<br />
• Quality decreases rapidly after the pit is opened.<br />
8
<strong>Forage</strong> and Animals<br />
Photo: Franci Havemeister, AK Division <strong>of</strong> Agriculture<br />
Dairy cattle on a farm in the Matanuska Valley<br />
In this section, several classes <strong>of</strong> foraging animals and their basic nutritional requirements<br />
are discussed. Protein, carbohydrates, fats, minerals, and vitamins are<br />
a few nutritional components necessary for animals to function properly. Other factors<br />
such as body size, type <strong>of</strong> digestive system, and the size and shape <strong>of</strong> an animal’s<br />
mouth are also discussed.<br />
Classes <strong>of</strong> Animals<br />
Livestock can be divided into three groups based on the type <strong>of</strong> forages they consume;<br />
grazers, browsers, and intermediate feeders.<br />
9
Grazers<br />
This group <strong>of</strong> animal has a diet that is dominated<br />
primarily by various grass species. Cattle, bison, elk,<br />
and musk oxen are all considered grazing animals.<br />
Horses are also grazers, but have an enlarged cecum.<br />
As a consequence, horses have a considerably less<br />
efficient digestive system than other grazers. Horses<br />
have to consume 50-60% more forage in comparison<br />
to cattle to meet the same nutritional requirements.<br />
Browsers<br />
Browsing animals have a diet that consists primarily<br />
<strong>of</strong> forbs and shrubs. Moose, deer and domestic<br />
goats are the primary examples <strong>of</strong> browsing animals<br />
in <strong>Alaska</strong>. They utilize a variety <strong>of</strong> succulent forbs<br />
throughout the entire growing season and persist<br />
on tall growing woody species during the winter.<br />
Moose can be found browsing on grass hay bales,<br />
birch limbs, and spruce buds throughout the winter<br />
months.<br />
Photo: Brianne Blackburn, AK PMC<br />
Photo: Casey Dinkel, AK PMC<br />
Photo: Casey Dinkel, AK PMC<br />
A pair <strong>of</strong> dall sheep graze within the Brooks Range.<br />
A Musk Ox at the <strong>Alaska</strong> Wildlife Conservation <strong>Center</strong>.<br />
At right:<br />
A sitka black tailed<br />
deer munches on<br />
fireweed,<br />
Chamerion<br />
angustifolium.<br />
Photo: USDA<br />
Domestic goats are browsers.<br />
Photo: Casey Dinkel, AK PMC Photo: Franci Havemeister, AK Division <strong>of</strong> Agriculture<br />
10<br />
Bison cow and calf graze on a ranch near Delta, <strong>Alaska</strong>.<br />
A bull moose browses on Dwarf birch,<br />
Betula glandulosa, in Denali National Park.
Photo: Casey Dinkel, AK PMC<br />
Photo: Greg Finsted, UAF.<br />
Intermediate Feeders<br />
The intermediate feeders group includes the caribou<br />
and reindeer. Feeding on grasses, forbs, and<br />
shrubs allows the intermediate feeder to adapt its<br />
feeding habits to take advantage <strong>of</strong> available forage<br />
throughout the year. This adaptation allows these<br />
animals to survive in <strong>Alaska</strong>’s diverse environment.<br />
A lone caribou in the Talkeetna mountains<br />
Nutritional Components<br />
All animals require food to carry out bodily functions<br />
for growth and structure. <strong>Alaska</strong>’s extreme<br />
living environment can present unique nutritional<br />
challenges. Foraging animals in <strong>Alaska</strong> may be deficient<br />
in several minerals and vitamins. Animals require<br />
high energy and/or high quality feed in order<br />
to minimize stress and fight disease during the long<br />
winters. Therefore, it is important to have a basic<br />
knowledge <strong>of</strong> forage nutritional components that<br />
are essential to understanding an animal’s overall<br />
health and maintenance.<br />
Carbohydrates<br />
Carbohydrates are the basic energy source for<br />
all animals. There are two types <strong>of</strong> basic carbohydrates;<br />
those associated with cell content and those<br />
associated with the cell itself. Starches and sugars<br />
are found within the cell wall and are easily broken<br />
down by the digestive system. Cellulose and hemicellulose<br />
are found inside the cell and require microorganisms<br />
within the rumen or cecum to assist with<br />
digestion. Lignin is also found within the cell wall<br />
<strong>of</strong> a plant and cannot be fully broken down and digested.<br />
Lignin concentrations are typically higher in<br />
the stem <strong>of</strong> a plant as opposed to the leaf material<br />
and increases as the plant matures.<br />
Fats<br />
Range animals do not have the gastrointestinal system<br />
needed to break down fats, due to the absence<br />
<strong>of</strong> bile in the small intestine. Bile is produced by the<br />
liver and is the main component in the degradation<br />
<strong>of</strong> fat. A small amount <strong>of</strong> fat is necessary in an ungulates<br />
diet. Some fats can be found in the seeds <strong>of</strong><br />
plants such as corn, peanuts, and sunflowers. Fats<br />
have about 2.25 times the energy levels in comparison<br />
to carbohydrates, making them the main source<br />
<strong>of</strong> stored energy in range animals.<br />
Feeding a reindeer hand-harvested lichen at the UAF Reindeer<br />
Farm. The reindeer’s wide rounded muzzle allows them<br />
to selectively feed on available forage throughout the year.<br />
Protein<br />
Like carbohydrates and fats, proteins are composed<br />
<strong>of</strong> nitrogen, carbon, hydrogen and oxygen atoms.<br />
More specifically, they are composed <strong>of</strong> chains <strong>of</strong><br />
amino-acids called peptides. These peptides are responsible<br />
for carrying out many functions in an ungulate’s<br />
body, such as the production <strong>of</strong> enzymes, hormones<br />
and antibodies. Proteins cannot be stored in<br />
the animal’s body, so a consistent supply is required<br />
to maintain animal health.<br />
11
Diagram: fitdaffy.blogspot.com<br />
The nutritional composition <strong>of</strong> a plant cell (Van Soest 1982)<br />
Protein levels in actively growing plants are<br />
typically higher than during dormancy. Leaves <strong>of</strong><br />
grasses, forbs and shrubs contain higher concentrations<br />
<strong>of</strong> protein than other parts such as the stems.<br />
However, forbs and shrubs tend to have higher levels<br />
<strong>of</strong> protein on average in comparison to grasses.<br />
Minerals<br />
Minerals play an important role in many essential<br />
body functions, such as muscle movement,<br />
nerve transmission, and blood function. Mineral deficiencies<br />
can result in poor animal health, increased<br />
mortality, and low production. Minerals can be<br />
grouped into two separate categories: macro-minerals<br />
and micro-minerals.<br />
Calcium, phosphorus, potassium, magnesium,<br />
chlorine, sodium, and sulfur are the main<br />
macro-minerals needed by grazing animals. These<br />
minerals generally encompass less than 5% <strong>of</strong> an animal’s<br />
body. Micro-minerals/nutrients are required<br />
in substantially lower amounts in grazing animals<br />
than macro-minerals, making up <strong>of</strong> less than .01% <strong>of</strong><br />
an animal’s body. Micro-minerals required by grazing<br />
animals are iron, copper, cobalt, fluorine, zinc,<br />
molybdenum, selenium, and manganese.<br />
Selenium commonly creates more problems<br />
for range animal health than all other micro-minerals.<br />
Selenium deficiency can cause skin disorders<br />
and/or rapid hair loss in animals. Soils throughout<br />
<strong>Alaska</strong> typically contain lower amounts <strong>of</strong> selenium<br />
as compared to the western United <strong>State</strong>s, where<br />
selenium levels are higher.<br />
Ruminant digestive system<br />
Diagram: seminolewellnessfeed.com<br />
12<br />
Cecal digestive system<br />
Macro - Minerals : Micro -Minerals :<br />
Calcium (Ca)<br />
Phosphorus (P)<br />
Potassium (K)<br />
Magnesium (Mg)<br />
Chlorine (Cl)<br />
Sodium (Na)<br />
Sulfur (S)<br />
Cracked or flaking hooves are a<br />
symptom <strong>of</strong> selenium deficiency<br />
Iron (Fe)<br />
Copper (Cu)<br />
Cobalt (Co)<br />
Flourine (F)<br />
Zinc (Zn)<br />
Molybdenum (Mo)<br />
Selenium (Sl)<br />
Manganese (Mn)
Vitamins<br />
Grazing animals require organic compounds<br />
such as vitamins to carry out essential bodily functions.<br />
Vitamins are separated into two different<br />
groups based on their solubility properties. Fat soluble<br />
vitamins such A, D, E, and K are stored in the animal’s<br />
body and used during periods <strong>of</strong> inadequate dietary<br />
supply. Water soluble vitamins, such as C and<br />
B complex, cannot be stored in the body and require<br />
a constant supply.<br />
Vitamin D is derived from sunlight. Deficiencies<br />
<strong>of</strong> Vitamin D are rare in the contiguous United<br />
<strong>State</strong>s, but can be a concern in <strong>Alaska</strong>. Vitamin E is<br />
obtained by consuming the leafy parts <strong>of</strong> a plant and<br />
is almost never deficient. However, in some cases<br />
foraging animals have displayed moderate to violent<br />
muscle spasms due to Vitamin E deficiency.<br />
Fat Soluble Vitamins : Water Soluble Vitamins :<br />
Vitamin A<br />
Vitamin D<br />
Vitamin E<br />
Vitamin K<br />
Vitamin B2 (Rib<strong>of</strong>lavin)<br />
Vitamin B12 (Cobalamin)<br />
Vitamin C<br />
Vitamin B Complex<br />
(Excluding B2 & B12)<br />
Photo: Liz Goldsmith, EquineInk.wordpress.com<br />
This horse shows muscle weakness due to Vitamin E deficiency.<br />
13
Endophytes<br />
Endophytes are organisms that live inside<br />
plants; they can be bacteria, fungi, or nematodes.<br />
Many survive only inside living plants and are transmitted<br />
from mother plant to seed. There are endophytic<br />
fungi that have mutualistic associations with<br />
their plant hosts (benefiting both organisms), however,<br />
some <strong>of</strong> these fungi produce toxins. The toxins<br />
produced can discourage feeding and can weaken<br />
or kill grazing animals. Not all members <strong>of</strong> an endophyte<br />
species produce toxins; growing conditions<br />
and time <strong>of</strong> year can also affect toxin loads. Generally,<br />
toxins are at their highest concentration in the<br />
crowns and seed heads. Many <strong>of</strong> the toxins can persist<br />
in stored hay for several years.<br />
Symptoms <strong>of</strong> Endophyte Poisoning In Animals<br />
Clinical symptoms are related to the type <strong>of</strong><br />
toxin present. The ergot alkaloids present in fescues<br />
cause constriction <strong>of</strong> blood vessels; symptoms include<br />
elevated body temperature (animals may stand<br />
in water), increased respiration, excessive salivation,<br />
restricted blood flow, “fescue foot” (dry gangrene in<br />
extremities) in cold weather, “fat necrosis”, nervousness,<br />
arched back, reduced weight gain, lowered<br />
reproduction, reduced milk production, and roughened<br />
hair coat. Ergot alkaloids can also be present<br />
in perennial ryegrass. The predominant toxin is typically<br />
lolitrem B, a tremorgen that causes tremors and<br />
muscle spasms. Lolitrems are the cause <strong>of</strong> “ryegrass<br />
staggers,” a condition in which the animal displays<br />
outstretched neck and limbs, tremors, stiff limbed<br />
gait, reluctance or inability to rise, disorientation,<br />
reduced weight gain and reduced prolactin levels.<br />
Tremors and disorientation are more pronounced<br />
when animals are excited.<br />
How to Identify Endophyte Infected Grass<br />
Endophyte infection does not generally cause<br />
outward symptoms in host plants, though they may<br />
appear more vigorous than neighboring plants,<br />
or may experience less grazing pressure. In cases<br />
<strong>of</strong> isolated toxin production in a pasture, the area<br />
may be fenced <strong>of</strong>f or livestock may feed on limited<br />
quantities <strong>of</strong> infected grass. Toxin production <strong>of</strong>ten<br />
increases with plant stress (heat, drought, overgrazing).<br />
Lush growth from excessive nitrogen fertilization<br />
should be avoided. Avoid feeding crown tissue<br />
at any time <strong>of</strong> the year. Mow or graze infected areas<br />
before seed heads develop, since they can contain<br />
the highest concentrations <strong>of</strong> toxins.<br />
Infected pastures should be avoided in the<br />
late summer or early fall when toxin levels are high.<br />
In more extreme cases <strong>of</strong> high toxin loads or widespread<br />
toxin production, pastures may need to be<br />
killed and replanted. Pastures should NOT be replanted<br />
with lawn mixes (endophytes can be desirable<br />
to protect lawns). Many pasture grasses are<br />
tested for fungal endophytes. “E +” or “E -” labels<br />
on seed mixes indicate the presence or absence <strong>of</strong><br />
endophytes; other labeling systems indicate the<br />
percent <strong>of</strong> infected seed. There are also varieties <strong>of</strong><br />
pasture grass containing endophyte strains that do<br />
not produce mammalian toxins, these provide nutritional<br />
and survival benefits to the plant without risk<br />
<strong>of</strong> livestock poisoning.<br />
Laboratory testing is available to confirm the<br />
presence <strong>of</strong> endophytes and their toxins. Please contact<br />
the <strong>Alaska</strong> <strong>Plant</strong> <strong>Materials</strong> <strong>Center</strong> at (907) 745-<br />
4469 if you suspect you may have endophyte problems<br />
in your pasture.<br />
14
Section B. Crop Establishment<br />
• Planning<br />
• Goals & Objectives<br />
• Evaluating Site Conditions<br />
• Selection <strong>of</strong> Species<br />
• <strong>Plant</strong>ing Choice<br />
• <strong>Plant</strong>ing Method<br />
• Site Preparation<br />
• <strong>Plant</strong>ing Time
Planning<br />
Photo: James McCormick<br />
Developing a forage management plan is a necessary first step in any operation.<br />
Attention to detail is essential, as you are working with biological processes that have<br />
specific timing and environmental requirements. Continuing management is also important,<br />
to deal with the wide range <strong>of</strong> conditions and problems presented by <strong>Alaska</strong>’s<br />
environment. This section details several important factors to consider, including site<br />
conditions, species selection, site preparation and various other agricultural practices.<br />
Goals and Objectives<br />
A grower bales hay in the Matanuska Valley.<br />
Goals can be distinguished from objectives in that a goal is an over-arching direction,<br />
and an objective is a specific measure taken to attain a goal. Goals will vary among<br />
managers depending on where the farm operation is located, type <strong>of</strong> animal, and the<br />
forage type desired. These three factors are correlated; the outcome <strong>of</strong> one may have<br />
an effect on the others. Stating goals early on will help in making good decisions and<br />
setting objectives as the planning process moves forward. A hay producer in Interior<br />
<strong>Alaska</strong> may have different objectives than one in Southcentral, despite having similar<br />
goals, due to climate and other factors.<br />
16
Evaluating Site Conditions<br />
Potential limiting factors that will affect forage establishment<br />
are extensive, and a complete discussion<br />
is beyond the scope <strong>of</strong> this manual. This publication<br />
focuses on the limiting factors that have been<br />
observed in <strong>Alaska</strong>, and other parameters important<br />
for successful forage establishment.<br />
<strong>Plant</strong> growth depends on temperature, nutrient/<br />
water availability, soil moisture holding capacity and<br />
the ability <strong>of</strong> plant roots to penetrate a given soil.<br />
<strong>Plant</strong> growth also depends on physical characteristics<br />
<strong>of</strong> the soil such as texture and structure.<br />
Soil Texture<br />
Soil is made up <strong>of</strong> mineral particles, organic matter,<br />
air and water. Soil texture is determined by the<br />
composition <strong>of</strong> soil, expressed as % sand, % silt, and %<br />
clay. Three classes <strong>of</strong> particle size are acknowledged<br />
with sands being the largest (2.0-.05 mm), silts (.05-<br />
.002 mm) intermediate in size, and clays (
Nutrients<br />
Nutrients can be classified as non-mineral and mineral<br />
nutrients (North Carolina Dept. <strong>of</strong> Agriculture).<br />
The best way to assess soil nutrient levels is through<br />
a lab soils test. Collecting soil samples will allow the<br />
soils lab to specifically tailor fertilizer ratios to the<br />
planting site. A listing <strong>of</strong> essential nutrients follows.<br />
Macro<br />
nutrients:<br />
Primary<br />
Nitrogen (N)<br />
Phosphorus (P)<br />
Potassium (K)<br />
Secondary<br />
Calcium (Ca)<br />
Magnesium (Mg)<br />
Sulfur (S)<br />
Micro / Trace<br />
nutrients:<br />
Boron (B)<br />
Copper (Cu)<br />
Iron (Fe)<br />
Chloride (Cl)<br />
Manganese (Mn)<br />
Molybdenum (Mo)<br />
Zinc (Zn)<br />
Non-Mineral<br />
nutrients:<br />
Hydrogen (H)<br />
Oxygen (O)<br />
Carbon (C)<br />
The application <strong>of</strong> fertilizer at the time <strong>of</strong> seeding<br />
may be necessary for some forage crops. Most<br />
commercial fertilizers meet minimum standards for<br />
quality. When problems do arise, they can usually be<br />
traced to the product becoming wet during storage<br />
or shipment.<br />
Fertilizer is described by a three number designator,<br />
referred to as N-P-K. These numbers refer to the<br />
percentages <strong>of</strong> three elements: nitrogen, phosphorus,<br />
and potassium, respectively. Therefore, 20-20-<br />
10 fertilizer contains 20% nitrogen, 20% phosphorus,<br />
and 10% potassium by weight.<br />
18<br />
Soil Structure<br />
The aggregation, or combination, <strong>of</strong> mineral soil particles<br />
(sand, silt, clay) is referred to as soil structure.<br />
The arrangement <strong>of</strong> soil particles create varying pore<br />
spaces that allow different quantities <strong>of</strong> moisture to<br />
be retained. This is referred to as the porosity <strong>of</strong> the<br />
soil, and will be noted on a soils test.<br />
Soil compaction is a condition where the pore space<br />
<strong>of</strong> the soil is reduced by pressure applied to the soil<br />
surface. Compaction compresses micropores and<br />
macropores, destroying the soil structure. This affects<br />
the uptake and movement <strong>of</strong> water and can inhibit<br />
plant and microbial growth. Breaking up compacted<br />
layers can be accomplished by mechanical tillage.<br />
Equipment should be operated along the contour to<br />
reduce the potential <strong>of</strong> water entering furrows and<br />
creating soil erosion problems.<br />
General fertilizer recommendations for <strong>Alaska</strong>,<br />
based on fields producing 2 tons per acre are as follows:<br />
Southcentral:<br />
Interior:<br />
Kenai<br />
Peninsula:<br />
140N-60P-120K lbs. / acre, with split<br />
application <strong>of</strong> Nitrogen (70 lbs. / acre in<br />
spring; 70 lbs. / acre mid-summer)<br />
120N-40P-20K lbs. / acre, with a dressing<br />
<strong>of</strong> 10 lbs. /acre elemental sulphur<br />
80N-40P-40K lbs. / acre,<br />
with a dressing <strong>of</strong> 32 lbs. /acre sulfur<br />
Application rates <strong>of</strong> fertilizer can be determined<br />
by taking soils tests and should be adjusted to the<br />
soil conditions present. Excessive fertilization can<br />
cause nutrient interactions and salt injury to occur.<br />
For site-specific fertilizer recommendations in your<br />
area contact the nearest Cooperative Extension <strong>of</strong>fice<br />
or the <strong>Plant</strong> <strong>Materials</strong> <strong>Center</strong>.
GRAPHIC: Verdegaal Brothers Inc. www.verdegaalbrothers.com<br />
How soil pH affects availability <strong>of</strong> plant nutrients<br />
Soil pH - Acidity and Alkalinity<br />
Soil pH is a measurement <strong>of</strong> soil acidity and/or alkalinity<br />
and has a major effect on nutrient availability. It is<br />
based on a logarithmic scale from 0 to 14. A number<br />
less than 7 represents an acidic soil, with the acidity increasing<br />
as the pH value gets closer to zero. Basic or alkaline<br />
soils are characterized by pH values greater than<br />
7. Neutral soils are represented by a value <strong>of</strong> 7.<br />
Basic soils contain high amount <strong>of</strong> bases (calcium,<br />
magnesium, potassium, sodium, phosphates) and are<br />
generally found in arid and semi-arid climates. Acidic<br />
soils form in wetter climates where the bases have<br />
been leached through the soil pr<strong>of</strong>ile. Having an idea<br />
<strong>of</strong> the pH value <strong>of</strong> the soil will help with plant selection,<br />
as some species prefer more acid soils and others prefer<br />
more alkaline soils. To correct acidic (low pH) soils,<br />
a limestone application is commonly applied. Sulfur is<br />
usually used to mitigate overly basic soils.<br />
19
20<br />
Topsoil<br />
The topsoil layer is a source <strong>of</strong> native seed, plant<br />
propagules, organic matter, and soil microbes which<br />
can enhance the quality <strong>of</strong> the substrate being planted.<br />
Top soil is a valuable resource in forage establishment,<br />
and should be preserved and/or salvaged<br />
when possible. However, the topsoil layer existing<br />
in undisturbed areas <strong>of</strong> <strong>Alaska</strong> is <strong>of</strong>ten very thin and<br />
therefore expensive to salvage.<br />
Graphic: Dmitry Mozalevsky, AK PMC. Adapted from a diagram in<br />
Principals <strong>of</strong> Archaeology, by T. Douglas Price, © 2007 McGraw-Hill, used with permission.<br />
The diagram shown above displays the typical diagnostic<br />
horizons within a soil pr<strong>of</strong>ile. The ‘A’ Horizon, also<br />
known as topsoil, is a mineral layer directly beneath<br />
the ‘O’ Horizon, a layer <strong>of</strong> decomposing organic material.<br />
The ‘B’ Horizon consists <strong>of</strong> an accumulation <strong>of</strong> Fe,<br />
Al, Si and humus. The ‘C’ Horizon is a layer <strong>of</strong> unconsolidated<br />
earthy material and s<strong>of</strong>t bedrock that underlies<br />
the uppermost horizons. The bottom strata consists <strong>of</strong><br />
rocky material and is referred to as the ‘R’ Horizon.<br />
Weed Control<br />
Weeds (unwanted or out-<strong>of</strong>-place plants) can exclude<br />
other species on a site because they are quick<br />
to germinate and establish. Weeds compete with<br />
forage seedlings for moisture, nutrients and light.<br />
This competition for resources can have several negative<br />
consequences, including weedy forage stands,<br />
increased time for crops to establish or even crop<br />
failure. Weed control is most critical during the first<br />
year <strong>of</strong> forage production. Planning a weed control<br />
strategy prior to and during seedling establishment<br />
is essential for a healthy forage stand.<br />
Methods that may be used to control annual and<br />
perennial weeds include tilling, mowing and application<br />
<strong>of</strong> herbicides. Excessive soil manipulation loosens<br />
the seedbed and dries the soil, so tilling should<br />
be done as close to planting as possible. Mowing<br />
should be done as close to the ground as possible<br />
and prior to weed species setting seed. Perennial<br />
weeds may require several cuttings. If the weed infestation<br />
is heavy, remove the remaining material<br />
left after mowing so that it does not smother the<br />
forage.<br />
Chemical weed control is meant to eliminate or reduce<br />
competition from weeds during the seedlings<br />
vegetative growth phase. Herbicide labels are legal<br />
documents providing directions on how to mix, apply,<br />
store, and dispose <strong>of</strong> herbicide. Always follow<br />
the product label when using an herbicide. The <strong>Alaska</strong><br />
Department <strong>of</strong> Environmental Conservation regulates<br />
pesticide and herbicide use within the <strong>State</strong>.<br />
The Pesticide Control Program for the <strong>State</strong> <strong>of</strong> <strong>Alaska</strong><br />
can be accessed at dec.alaska.gov/eh/pest/.<br />
The Department <strong>of</strong> Natural Resources / Division <strong>of</strong><br />
Agriculture (DOA) maintains the authority to regulate<br />
the entry <strong>of</strong> seeds, plants, horticultural products<br />
and products relating to (AS 03.05.010). Under this<br />
authority, the DOA has established seed regulations<br />
to prevent “prohibited” or “restricted” noxious<br />
weeds from being sold deliberately or transported<br />
as a contaminant above allowable tolerances (11 AAC<br />
34.020). It is important to be familiar with noxious<br />
weeds and to apply appropriate management practices<br />
to prevent these species from establishing in<br />
your forage crop. The listed “prohibited” and “restricted”<br />
noxious weeds are included in Appendix C.<br />
The current Seed Regulations can be found at dnr.<br />
alaska.gov/ag/akpmc/pdf/SOA-seed-regs.pdf.
Selection <strong>of</strong> Species<br />
Species selection is one <strong>of</strong> the most important criteria<br />
for a successful forage crop. The harsh and diverse<br />
environments <strong>of</strong> <strong>Alaska</strong> limit species growth<br />
and production potentials. Therefore, it is imperative<br />
that species and cultivars (varieties) chosen are<br />
winter-hardy and able to survive and thrive in the local<br />
environment.<br />
Climatic, topographic, and soil conditions should all<br />
be taken into account when selecting species. More<br />
importantly, the plant species should meet the needs<br />
<strong>of</strong> the animals that will be feeding on and inhabiting<br />
the site.<br />
Desirable species characteristics include site adaptation,<br />
palatability, resistance to grazing pressure, and<br />
nutritional value. The ability <strong>of</strong> a species to produce<br />
high yields and withstand competition is also highly<br />
valued. The <strong>Alaska</strong> <strong>Forage</strong> <strong>Manual</strong> includes pr<strong>of</strong>iles<br />
<strong>of</strong> 24 species <strong>of</strong> grasses, legumes, and grains that are<br />
adapted for forage use in various regions across the<br />
state.<br />
The final determinant to consider when selecting<br />
species is best summarized below:<br />
“Always assess the practical availability <strong>of</strong> potential<br />
species before selecting them. Adequate plant materials<br />
must be available, at the correct time, and at an<br />
acceptable cost.” (Whisenant, 1999)<br />
Photo: Casey Dinkel, AK PMC<br />
Two different varieties <strong>of</strong> the same grass species were planted in separate blocks to compare<br />
their ability to overwinter within the Interior <strong>of</strong> <strong>Alaska</strong>. The variety at right has<br />
been mostly winter-killed, and would not be a good choice to plant in this region.<br />
21
<strong>Plant</strong>ing Choice<br />
Seed<br />
Seeding is the most common technique for establishing<br />
herbaceous plants for forage and hay. Seed<br />
is readily available for many species, and is relatively<br />
easy and inexpensive to produce. Furthermore,<br />
seed is easy to collect, process, handle, and apply to<br />
a pasture by drill or broadcast methods.<br />
The objective <strong>of</strong> seeding is to place the seed where<br />
it is needed and in proper contact with the soil. The<br />
method and equipment used depend upon the plant<br />
species being seeded and the characteristics <strong>of</strong> the<br />
site, such as soil type and topography.<br />
Only drill seeding and broadcast seeding are discussed<br />
in this manual, as these are the two most<br />
commonly used methods for establishing forage<br />
crops.<br />
‘<br />
Causes <strong>of</strong> Seeding Failure<br />
<strong>Forage</strong> seeding can involve considerable uncertainty.<br />
An awareness <strong>of</strong> limiting factors pertaining to<br />
seeding is valuable, and can help to limit uncertainty.<br />
There are many planting details that should be understood<br />
to establish forage<br />
species for pasture, hay or silage<br />
purposes.<br />
A few reasons for seeding failure<br />
include seeding too early<br />
or too late in the season, poor<br />
seedbed preparation, low<br />
quality seed, or inadequate<br />
depth <strong>of</strong> seeding. Seeding too<br />
deep is a common mistake,<br />
and seeding depth should be<br />
closely monitored.<br />
A definitive seeding plan<br />
which addresses each <strong>of</strong> the<br />
considerations listed above is<br />
<strong>of</strong>ten the best guarantee <strong>of</strong> a<br />
successful seeding result.<br />
<strong>Plant</strong>ing Method<br />
Drill Seeding<br />
Drill seeding is the most widely used method for<br />
forage plantings. When drill seeding, furrows are<br />
created and the seed is placed in the soil furrow at<br />
a controlled depth and covered with a relatively precise<br />
amount <strong>of</strong> soil. Drill seeders are used most <strong>of</strong>ten<br />
in agricultural settings. The drill seeding method<br />
is considered by many to be the best method <strong>of</strong> distributing<br />
seed. It is an effective means for establishing<br />
a high yield stand, using a smaller amount <strong>of</strong> seed<br />
compared to the broadcast method.<br />
One type <strong>of</strong> drill seeder, the Brillion style, is <strong>of</strong>ten<br />
used for planting forage. This seeder has been successfully<br />
used on most soil types, except very gravelly<br />
soils. The Brillion seeder delivers the seed into the<br />
soil, packs the seed in place, and applies seed with<br />
high accuracy.<br />
Photo: Brennan Veith Low, AK PMC<br />
22<br />
A drill seeder is towed behind a tractor at the <strong>Alaska</strong> PMC
Photo: Kasco Manufacturing Co.<br />
Broadcast Seeding<br />
The broadcast method scatters seed on the soil surface,<br />
and relies on natural processes or harrowing to<br />
cover the seed. This is a common form <strong>of</strong> seeding<br />
because advanced equipment is not needed. Broadcasting<br />
is fast and is usually the least expensive form<br />
<strong>of</strong> seeding.<br />
In order for this method to be successful, the seedbed<br />
should be properly prepared and the seed covered<br />
after application. Predation <strong>of</strong> seed by animals<br />
and desiccation by wind and sun may result in lower<br />
germination rates.<br />
The recommended seeding rate for broadcasting is<br />
double that <strong>of</strong> drilling, due to the lack <strong>of</strong> application<br />
control and the potential for reduced rates <strong>of</strong> seed<br />
establishment and germination.<br />
Broadcasting includes aerial seeding, hydroseeding,<br />
and hand-held methods. Hand-held or hand-operated<br />
spreaders can be used on smaller sites effectively,<br />
due to their portability and speed. Hand operated<br />
spreaders can also be used for both seed and fertilizer<br />
application.<br />
Site Preparation<br />
Site preparation is a primary concern in establishing<br />
forage pasture and/or hay fields. This phase is the<br />
most labor intensive and energy consumptive, and<br />
<strong>of</strong>ten determines the success or failure <strong>of</strong> a planting<br />
initiative (Vallentine, 1989). The objective <strong>of</strong> site<br />
preparation is to create a series <strong>of</strong> micro-environments<br />
or safe sites where conditions are favorable<br />
for seed germination, establishment, and growth.<br />
The surface <strong>of</strong> the prepared seedbed should be<br />
smooth for drilling and rough for broadcast seeding.<br />
Agricultural rangeland drills operate efficiently on<br />
ground that is relatively flat and free <strong>of</strong> obstructions<br />
that may affect seed distribution and placement. If<br />
a site is not seeded immediately after preparation,<br />
erosion can become a concern. Roughening or scarifying<br />
the surface with a harrow, imprinter, or other<br />
implement will help prevent water from coalescing<br />
and forming rills.<br />
Prior to final seeding, a light disking will break up<br />
the soil crust and smooth the surface. If broadcasting,<br />
a small imprinter can be used to crimp the seed<br />
and create catchment sites for water. Germination<br />
and survival increase tremendously with proper site<br />
preparation.<br />
Photo: Omni Manufacturing Photobucket user omnimfg:<br />
A tractor mounted broadcast seeder<br />
An imprinter can be used to firm sandy, silty or loose soils<br />
23
Photo: Casey Dinkel, AK PMC<br />
Procedures relying on mechanical equipment, such<br />
as disking, plowing, harrowing and subsoilers, are<br />
agricultural methods commonly used to prepare a<br />
seedbed. Using these tools, the soil surface is manipulated,<br />
existing vegetation that could compete<br />
with seedlings is killed, and the planting process is<br />
facilitated (Whisenant, 1999).<br />
The final mechanical operation should prepare a<br />
firm seedbed which allows water infiltration and provides<br />
good seed-to-soil contact (Whisenant, 1999). A<br />
loose, fluffy seedbed limits establishment by creating<br />
air pockets, soil moisture loss and allowing seed<br />
to settle too deeply.<br />
No-Till Seedbed Preparation<br />
An alternative method <strong>of</strong> seedbed preparation is<br />
the no-till method. This method moves away from<br />
the traditional practice <strong>of</strong> plowing a field before<br />
planting crops. Tilling or plowing turns over the soil<br />
and leaves it vulnerable to wind and water erosion.<br />
This can further lead to sediment, fertilizer, and pesticide<br />
run<strong>of</strong>f into nearby rivers, lakes and oceans.<br />
The objective <strong>of</strong> the no-till method is to minimize<br />
soil disturbance so the growing site can be as productive<br />
as possible. Crops are planted into previous<br />
crop residues or stubble. Soil erosion can be reduced<br />
and water infiltration may be improved. Additional<br />
benefits <strong>of</strong> the no-till method<br />
include the shading <strong>of</strong> new<br />
growth by stubble from the<br />
previous year’s crop as well as<br />
the retention <strong>of</strong> soil moisture.<br />
The no-till methods adoption<br />
may also require fewer passes<br />
over a field thereby limiting<br />
disturbance to the soil. A criticism<br />
<strong>of</strong> no-till is the reliance on<br />
chemical herbicides as well as<br />
the need for precision equipment,<br />
such as drill seeders.<br />
This practice can be cost prohibitive<br />
for many growers, especially<br />
those with small acreage.<br />
The ‘no-till’ seedbed preparation method limits soil erosion and helps retain moisture.<br />
1. Be free <strong>of</strong> construction debris;<br />
2. Have relatively few large rocks or objects;<br />
3. Be free <strong>of</strong> ruts and gullies;<br />
An Ideal Seedbed Should :<br />
4. Have the top two inches in a thoroughly tilled friable, non-compacted condition;<br />
5. Be scarified to a depth <strong>of</strong> 6 to 8 inches if heavily compacted;<br />
6. Be devoid <strong>of</strong> non-native established weeds. Competition from weeds is a common cause <strong>of</strong> seeding<br />
failure, because they compete with seedlings for moisture, nutrients, and light; and<br />
7. Be without a significant seed-bank <strong>of</strong> weedy species. Seed stored in the soil as hard or dormant seed<br />
may be viable and will germinate if the conditions are right. The presence <strong>of</strong> a nearby seed-bank<br />
<strong>of</strong>ten accounts for the surprise <strong>of</strong> a weedy species showing up on a site.<br />
24
<strong>Plant</strong>ing Time<br />
The optimal planting season is just before the longest<br />
period <strong>of</strong> favorable conditions. <strong>Plant</strong>ing times<br />
are determined by choosing the season when rainfall<br />
and temperatures are most favorable for seedling<br />
germination and establishment. Many sites dry<br />
quickly following spring melt, and precipitation is<br />
quite low in some regions <strong>of</strong> <strong>Alaska</strong>. A seeding time<br />
should be chosen that is the most advantageous to<br />
the seeded species.<br />
In <strong>Alaska</strong>, spring planting is best where the primary<br />
growing season occurs in the late spring and/or summer.<br />
Early planting allows a species stand to develop<br />
a strong root- and-shoot structure, resulting in a<br />
plant that is more “winter-hardy”.<br />
The following table approximates the end <strong>of</strong> planting<br />
season across several regions <strong>of</strong> <strong>Alaska</strong>. The earliest<br />
time to plant is when the snow melts and the site is<br />
accessible.<br />
Latest Date to Seed:<br />
Arctic Coast July 15<br />
Western <strong>Alaska</strong> August 15<br />
Interior <strong>Alaska</strong> August 15<br />
Southcentral <strong>Alaska</strong> August 31<br />
Southeast & Aleutian Islands Sept. 15<br />
The precipitation and temperature maps that follow<br />
may be helpful in determining the appropriate<br />
planting time for your region.<br />
Graphic: The Climate Source, Inc., www.climatesource.com/ak/fact_sheets/fact_precip_ak.html<br />
Mean Annual Precipitation in <strong>Alaska</strong><br />
25
26<br />
Graphics: Manley, W.F., and Daly, C., 2005, <strong>Alaska</strong> Geospacial Climate<br />
Animations <strong>of</strong> Monthly Temperature and Precipitation: INSTAAR,<br />
University <strong>of</strong> Colorado, instaar.colorado.edu/QGISL/AGCA
Section C. <strong>Plant</strong> Pr<strong>of</strong>iles<br />
Grasses<br />
Page<br />
Alpine Bluegrass, Poa alpina 30<br />
American Sloughgrass, Beckmannia syzigachne 32<br />
Annual Ryegrass, Lolium multiflorum 34<br />
Beach Wildrye, Leymus mollis 36<br />
Bering Hairgrass, Deschampsia beringensis 38<br />
Bluejoint Reedgrass, Calamagrostis canadensis 40<br />
Kentucky Bluegrass, Poa pratensis 42<br />
Meadow Barley, Hordeum brachyantherum 44<br />
Meadow Foxtail, Alopecurus pratensis 46<br />
Polargrass, Arctagrostis latifolia 48<br />
Red Fescue, Festuca rubra 50<br />
Siberian Wildrye, Elymus sibiricus 52<br />
Slender Wheatgrass, Elymus trachycaulus 54<br />
Smooth Brome, Bromus inermis 56<br />
Spike Trisetum, Trisetum spicatum 58<br />
Timothy, Phleum pratense 60<br />
Tufted Hairgrass, Deschampsia cespitosa 62<br />
Cereal Grains<br />
Page<br />
Barley, Hordeum vulgare 66<br />
Oats, Avena sativa 68<br />
Legumes<br />
Page<br />
Alfalfa, Medicago sativa 72<br />
Alsike Clover, Trifolium hybridum 74<br />
Field Pea, Pisum sativum 76<br />
Red Clover, Trifolium pratense 78<br />
White Clover, Trifolium repens 80<br />
27
Grasses<br />
Photo: Casey Dinkel,AK PMC<br />
Bluejoint reedgrass, Calamagrostis canadensis<br />
Alpine Bluegrass, Poa alpina<br />
American Sloughgrass, Beckmannia syzigachne<br />
Annual Ryegrass, Lolium multiflorum<br />
Beach Wildrye, Leymus mollis<br />
Bering Hairgrass, Deschampsia beringensis<br />
Bluejoint Reedgrass, Calamagrostis canadensis<br />
Kentucky Bluegrass, Poa pratensis<br />
Meadow Barley, Hordeum brachyantherum<br />
Meadow Foxtail, Alopecurus pratensis<br />
Polargrass, Arctagrostis latifolia<br />
Red Fescue, Festuca rubra<br />
Siberian Wildrye, Elymus sibiricus<br />
Slender Wheatgrass, Elymus trachycaulus<br />
Smooth Brome, Bromus inermis<br />
Spike Trisetum, Trisetum spicatum<br />
Timothy, Phleum pratense<br />
Tufted Hairgrass, Deschampsia cespitosa<br />
28
Photo: Casey Dinkel,AK PMC<br />
ALPINE BLUEGRASS<br />
<strong>Forage</strong> Value<br />
Alpine Bluegrass produces high quality forage for most classes<br />
<strong>of</strong> livestock and wildlife. It provides an ample protein supply,<br />
but forage yields are usually moderate to low. This grass is<br />
palatable for both livestock and wildlife. Alpine Bluegrass has<br />
moderate digestibility in comparison with other forage grasses.<br />
Distribution and Adaptation<br />
A mature stand <strong>of</strong> Alpine Bluegrass<br />
Alpine Bluegrass<br />
Poa alpina (L.)<br />
Description<br />
Poa alpina (Alpine Bluegrass) is a cool season perennial bunch<br />
grass that grows in mountainous areas. It is relatively short,<br />
growing erect culms between 15 and 20 centimeters (6 to 8<br />
inches) tall. Alpine Bluegrass has short leaves, a tight crown,<br />
and an inflorescence that is from 2.5 to 5 cm (1-2 inches) long.<br />
Alpine Bluegrass is a pioneer species, and is usually long lived.<br />
The grass grows a small to medium seed and produces about<br />
1,070,000 seeds per pound <strong>of</strong> seed.<br />
Alpine Bluegrass can be found growing in sub-alpine to alpine<br />
regions throughout <strong>Alaska</strong>. It has a pH range <strong>of</strong> 5 to 7.2, and<br />
typically prefers moderately fine to moderately coarse textured<br />
or well drained soils. Alpine Bluegrass is not tolerant <strong>of</strong> highly<br />
saline or waterlogged soils, but it can withstand prolonged<br />
periods <strong>of</strong> drought. Alpine Bluegrass has low nutrient needs,<br />
and will tolerate most nutrient deficient soils.<br />
Culture<br />
Alpine Bluegrass seed should be planted ¼ to ½ inches deep<br />
in coarsely textured soils, and ¼” or shallower in finely textured<br />
soils. Seeding rates depend greatly upon soil type, moisture,<br />
and location. An average seeding rate for broadcasting is 4-8<br />
lbs/acre and 2-4 lbs/acre when drill seeding. When seeded<br />
in a mixture, apply at a rate <strong>of</strong> 4-6 lbs/acre. All seeding rates<br />
are determined by using Pure Live Seed (PLS) calculations, as<br />
described in Appendix B.<br />
Appropriate fertilizer ratios depend upon soil type, chemistry,<br />
and location. Soil samples should be collected and analyzed<br />
before fertilizer is applied. Pastures and hay fields should<br />
be irrigated when necessary and/or applicable. Irrigation in<br />
combination with fertilization should increase overall yields.<br />
Uses<br />
Livestock: Alpine Bluegrass is palatable to all classes <strong>of</strong><br />
livestock, such as cattle, sheep and horses. However, it does<br />
not produce a large amount <strong>of</strong> forage.<br />
Wildlife: Alpine Bluegrass provides excellent forage for elk,<br />
deer, mountain sheep and bison. It is moderately palatable<br />
to all classes <strong>of</strong> wildlife, and is <strong>of</strong>ten used on big game ranges.<br />
Management<br />
Alpine Bluegrass is best suited for pasture land use but it does<br />
not respond well to heavy grazing, and new seedlings should<br />
be protected from grazing if possible. Little research has been<br />
done to examine the effects fertilizer and irrigation might have<br />
on Alpine Bluegrass yields. Alpine Bluegrass should not be<br />
grown in conjunction with Annual Ryegrass, as ryegrass has<br />
negative allelopathic effects. At the present time there are no<br />
known major pests that threaten Alpine Bluegrass.<br />
29
Photo: Stoney J. Wright, AK PMC<br />
Grass<br />
Cultivars and Releases<br />
• ‘Gruening’ - <strong>Alaska</strong> PMC release.<br />
• Teller - selected class germplasm; <strong>Alaska</strong> PMC release.<br />
References<br />
A W I SW SC SE<br />
W I SW SC SE<br />
Wright, S.J. and P.K. Czapla (2010) <strong>Alaska</strong> Coastal Revegetation & Erosion<br />
Control Guide, <strong>State</strong> <strong>of</strong> <strong>Alaska</strong>, Division <strong>of</strong> Agriculture, <strong>Plant</strong> <strong>Materials</strong> <strong>Center</strong>,<br />
Anchorage, <strong>Alaska</strong>. 234 pp Link: http://dnr.alaska.gov/ag/akpmc/reveg/<br />
Wright, S.J. and P. Hunt (2008) A Revegetation Guide for <strong>Alaska</strong>, <strong>State</strong> <strong>of</strong><br />
<strong>Alaska</strong>, Division <strong>of</strong> Agriculture, <strong>Plant</strong> <strong>Materials</strong> <strong>Center</strong>, Anchorage, <strong>Alaska</strong>.<br />
160 pp Link: http://dnr.alaska.gov/ag/akpmc/pdf/Reveg<strong>Manual</strong>.pdf<br />
Natural Resource Conservation Service (2000) USDA National <strong>Plant</strong> Data<br />
<strong>Center</strong> [online] Link: http://plants.usda.gov/java/<br />
Alpine Bluegrass, Poa alpina<br />
Pawnee Buttes Seed Inc. (2004) A Guide to Grasses, Pawnee Butte Seed Inc.,<br />
Greeley, Colorado. 107 pp [online] Link: http://www.pawneebuttesseed.<br />
com/guide_to_grasses.htm<br />
Skinner, Q.D, Wright, S.J., Henszey, R. J., Henszey, J.L. and Wyman, S.K.<br />
(2012) A Field Guide to <strong>Alaska</strong> Grasses, Education Resources Publishing,<br />
Cummings Georgia. 384 pp<br />
A<br />
W<br />
I<br />
SW<br />
SC<br />
SE<br />
Coarse<br />
Moderately<br />
Coarse<br />
Soil Texture *<br />
Medium<br />
Moderately<br />
Fine<br />
Fine<br />
0 2 3 2 0<br />
* Soil texture is graded on a scale <strong>of</strong> 0 to 3; higher numbers<br />
denote textures to which species is most adapted.<br />
Species not<br />
adapted to region<br />
Adapted Regions:<br />
Alpine Bluegrass<br />
• All Regions<br />
see variety detail at left<br />
Availability<br />
Growth<br />
Form<br />
Average<br />
Height<br />
Native or<br />
Introduced<br />
Saline<br />
Tolerance<br />
Drought<br />
Tolerance<br />
Wet Soil<br />
Tolerance<br />
Competitiveness<br />
pH Range<br />
30<br />
Poor Bunch 6 - 8 in. Native Poor Good Poor Weak 5 - 7.2
Photo: Brennan Veith Low, AK PMC<br />
AMERICAN SLOUGHGRASS<br />
<strong>Forage</strong> Value<br />
American Sloughgrass is highly palatable and a valuable<br />
forage species. It has good energy and high protein value.<br />
American Sloughgrass is also know to contain high amounts <strong>of</strong><br />
nonstructural carbohydrates. Livestock and wildlife generally<br />
concentrate in the wet meadows and riparian areas where<br />
American Sloughgrass grows.<br />
Distribution and Adaptation<br />
American Sloughgrass grows wild in <strong>Alaska</strong> and the northern<br />
United <strong>State</strong>s in wet meadows, marshes and swamps. It is<br />
also grown and used as forage in parts <strong>of</strong> Europe and Russia.<br />
American Sloughgrass generally prefers a pH ranging from 5.5<br />
to 7.5. It is commonly found growing in areas that receive at<br />
least 30 inches <strong>of</strong> precipitation per year.<br />
A mature stand <strong>of</strong> American Sloughgrass<br />
American Sloughgrass<br />
Beckmannia syzigachne (L.)<br />
Description<br />
Beckmannia syzigachne (American Sloughgrass) is a short<br />
lived perennial grass that is commonly found in shallow<br />
marshes or sloughs. Its shallow root system supports a leafy<br />
stem which may be up to 45 centimeters (18 inches) tall.<br />
Branched inflorescence, classified as closed panicle. Spikelets<br />
have very short pedicels that are arranged on only one side <strong>of</strong><br />
the panicle. One or two flowered spikelets disarticulate below<br />
the glumes. There are approximately 1,270,000 American<br />
Sloughgrass seeds per pound <strong>of</strong> seed.<br />
Culture<br />
An average broadcast seeding rate for American Sloughgrass<br />
is 10 lbs/acre. A rate <strong>of</strong> 5 lbs/acre is used when drill seeding,<br />
or when seeded in a mixture. American Sloughgrass seed<br />
should be planted to a depth <strong>of</strong> 1 /4 - 1 /2 inch. Be mindful <strong>of</strong> this<br />
grass’s high water requirement when choosing a growing site.<br />
If the planting site is dry at the time <strong>of</strong> seeding, irrigation may<br />
be necessary. American Sloughgrass seed should be planted<br />
in moist to wet soils that are <strong>of</strong> medium to fine texture. All<br />
seeding rates are determined by using Pure Live Seed (PLS)<br />
calculations, as described in Appendix B.<br />
Appropriate fertilizer ratios depend upon soil type, chemistry,<br />
and location. Soil samples should be collected and analyzed<br />
before fertilizer is applied.<br />
Uses<br />
Livestock: American Sloughgrass can be used for hay<br />
meadows or pasture land. It is highly palatable to all classes <strong>of</strong><br />
livestock, such as cattle, sheep and horses.<br />
Wildlife: American Sloughgrass is an important component<br />
<strong>of</strong> <strong>Alaska</strong>n wetland environments. The grass provides shelter<br />
and food for wildlife such as waterfowl, songbirds and various<br />
small mammals.<br />
Management<br />
American Sloughgrass normally produces an abundance<br />
<strong>of</strong> seed that will readily germinate upon reaching a suitable<br />
growing site. It can be feasible to use American Sloughgrass<br />
on seasonally inundated sites where grain production is<br />
unpredictable. American Sloughgrass’s vigorous growth habit<br />
is suited to sites where temporary, yet productive, cover<br />
is desired. The seed unit that falls from the inflorescence<br />
at maturity is a firm, free flowing spikelet that presents no<br />
difficulties for conventional planting equipment.<br />
31
Grass<br />
Photo: Casey Dinkel, AK PMC<br />
Cultivars and Releases<br />
• ‘Egan’ - <strong>Alaska</strong> PMC release.<br />
References<br />
W I SW SC SE<br />
American Sloughgrass, Beckmannia syzigachne<br />
Wright, S.J. and P.K. Czapla (2010) <strong>Alaska</strong> Coastal Revegetation & Erosion<br />
Control Guide, <strong>State</strong> <strong>of</strong> <strong>Alaska</strong>, Division <strong>of</strong> Agriculture, <strong>Plant</strong> <strong>Materials</strong> <strong>Center</strong>,<br />
Anchorage, <strong>Alaska</strong>. 234 pp Link: http://dnr.alaska.gov/ag/akpmc/reveg/<br />
Wright, S.J. and P. Hunt (2008) A Revegetation Guide for <strong>Alaska</strong>, <strong>State</strong> <strong>of</strong><br />
<strong>Alaska</strong>, Division <strong>of</strong> Agriculture, <strong>Plant</strong> <strong>Materials</strong> <strong>Center</strong>, Anchorage, <strong>Alaska</strong>.<br />
160 pp Link: http://dnr.alaska.gov/ag/akpmc/pdf/Reveg<strong>Manual</strong>.pdf<br />
W<br />
I<br />
SW<br />
SC<br />
SE<br />
Natural Resource Conservation Service (NRCS) (2000) USDA National <strong>Plant</strong><br />
Data <strong>Center</strong> [online] Link: http://plants.usda.gov/java/<br />
Skinner, Q.D, Wright, S.J., Henszey, R. J., Henszey, J.L. and Wyman, S.K.<br />
(2012) A Field Guide to <strong>Alaska</strong> Grasses, Education Resources Publishing,<br />
Cummings Georgia. 384 pp<br />
Coarse<br />
Moderately<br />
Coarse<br />
Soil Texture *<br />
Medium<br />
Moderately<br />
Fine<br />
Fine<br />
0 1 3 3 2<br />
* Soil texture is graded on a scale <strong>of</strong> 0 to 3; higher numbers<br />
denote textures to which species is most adapted.<br />
Species not<br />
adapted to region<br />
Adapted Regions:<br />
American Sloughgrass<br />
• Western<br />
• Interior<br />
• Southwest<br />
• Southcentral<br />
• Southeast<br />
Availability<br />
Growth<br />
Form<br />
Average<br />
Height<br />
Native or<br />
Introduced<br />
Saline<br />
Tolerance<br />
Drought<br />
Tolerance<br />
Wet Soil<br />
Tolerance<br />
Competitiveness<br />
pH Range<br />
32<br />
Good Bunch 18 in. Native Good Poor Excellent Moderate 5.5 - 7.5
ANNUAL RYEGRASS<br />
Photo: <strong>Alaska</strong> PMC<br />
<strong>Forage</strong> Value<br />
Annual Ryegrass produces good quality forage for most<br />
classes <strong>of</strong> livestock and wildlife. It is considered to have<br />
high palatability for grazing animals and low palatability for<br />
browsing species. This grass has a moderate digestibility, and<br />
makes an excellent forage crop when planted with legumes.<br />
Distribution and Adaptation<br />
Annual Ryegrass can be found growing throughout most<br />
<strong>of</strong> North America. Introduced from Europe, it is adapted to<br />
cool moist climates, like those found in the Pacific Northwest.<br />
Although it can be found growing in <strong>Alaska</strong>, it will not persist<br />
due to its inability to over winter in harsh climates. It can<br />
tolerate a pH range <strong>of</strong> 5 to 8, and typically prefers moderately<br />
course to moderately fine textured soils. Annual Ryegrass<br />
will not persist during prolonged periods <strong>of</strong> drought, but it<br />
will tolerate areas <strong>of</strong> high moisture. This grass can withstand<br />
highly saline and nutritionally deprived soils.<br />
A mature stand <strong>of</strong> Annual Ryegrass<br />
Annual Ryegrass<br />
Lolium multiflorum (L.)<br />
Description<br />
Lolium multiflorum (Annual Ryegrass) is an annual, coolseason,<br />
introduced bunch grass. This grass grows erect or<br />
decumbent culms between 30 to 60 centimeters (12 to 24<br />
inches) tall. Annual Ryegrass’s foliage is usually glossy and<br />
produces a spike inflorescence that is between 7 to 15 cm (3 to<br />
6 inches) long. As with most annual grasses, Annual Ryegrass<br />
produces a small root structure. This grass produces a medium<br />
size seed that grows at a rapid rate. Annual Ryegrass produces<br />
approximately 240,000 seeds per pound <strong>of</strong> seed.<br />
Always use ryegrass labeled for “forage or pasture use”.<br />
Some available varieties can be toxic. Non-forage types can<br />
contain harmful endophytes.<br />
Uses<br />
Livestock: Annual Ryegrass is used for pasture, hay, or silage.<br />
It is highly palatable to all classes <strong>of</strong> livestock, including cattle,<br />
sheep and horses.<br />
Wildlife: Annual Ryegrass is consumed by most classes <strong>of</strong><br />
large wildlife, such as bison, elk, deer, and mountain sheep.<br />
Small mammals and song birds will also utilize this grass when<br />
available.<br />
Culture<br />
Annual Ryegrass seed should be planted no deeper than ½<br />
inch in most soil conditions. It is commonly planted in mixtures<br />
with legumes or small grains. Annual Ryegrass seeding rates<br />
depend greatly upon soil type, moisture, and location. An<br />
average seeding rate for broadcasting is 8-16 lbs/acre and 4-8<br />
lbs/acre when drill seeding. When Annual Ryegrass is seeded<br />
in a mixture, apply at a rate <strong>of</strong> 6 - 10 lbs/acre. Seeding rates<br />
should be increased by 5 - 10 lbs/acre when planting on poor<br />
seedbeds or harsh sites. All seeding rates are determined<br />
by using Pure Live Seed (PLS) calculations, as described in<br />
Appendix B.<br />
Appropriate fertilizer ratios depend upon soil type, chemistry,<br />
and location. Soil samples should be collected and analyzed<br />
before fertilizer is applied. Pastures and hay fields should<br />
be irrigated when necessary and/or applicable. Irrigation in<br />
combination with fertilizer should increase overall yields.<br />
Management<br />
Annual Ryegrass is excellent for temporary pastures or early<br />
growth on permanent pastures. This grass should be seeded<br />
with other pioneer grass species, due to its short life cycle.<br />
Annual Ryegrass will succumb to winters in <strong>Alaska</strong>. It is also<br />
prone to several types <strong>of</strong> rust disease, although the species is<br />
somewhat resistant. Annual Ryegrass requires ample moisture<br />
and irrigation should be applied when necessary.<br />
33
Photo: Casey Dinkel, AK PMC<br />
Grass<br />
Cultivars and Releases<br />
• There are currently no developed northern cultivars<br />
or releases <strong>of</strong> Annual Ryegrass. Use <strong>of</strong> locally grown<br />
cultivars is advised whenever possible.<br />
References<br />
Wright, S.J. and P. Hunt (2008) A Revegetation Guide for <strong>Alaska</strong>, <strong>State</strong> <strong>of</strong><br />
<strong>Alaska</strong>, Division <strong>of</strong> Agriculture, <strong>Plant</strong> <strong>Materials</strong> <strong>Center</strong>, Anchorage, <strong>Alaska</strong>.<br />
160 pp Link: http://dnr.alaska.gov/ag/akpmc/pdf/Reveg<strong>Manual</strong>.pdf<br />
Natural Resource Conservation Service (2000) USDA National <strong>Plant</strong> Data<br />
<strong>Center</strong> [online] Link: http://plants.usda.gov/java/<br />
Pawnee Buttes Seed Inc. (2004) A Guide to Grasses, Pawnee Butte Seed Inc.,<br />
Greeley, Colorado. 107 pp [online] Link: http://www.pawneebuttesseed.<br />
com/guide_to_grasses.htm<br />
Soil Conservation Service (1972) A Vegetative Guide for <strong>Alaska</strong>. University<br />
<strong>of</strong> <strong>Alaska</strong>, Institute <strong>of</strong> Agricultural Sciences, Soil Conservation Service. 50 pp<br />
Annual Ryegrass, Lolium multiflorum<br />
Maurice, E.H., D.S. Metcalfe and R.F. Barnes, (1973) <strong>Forage</strong>s, The Science <strong>of</strong><br />
Grassland Agriculture. University <strong>of</strong> Iowa <strong>State</strong>, Iowa <strong>State</strong> University Press.<br />
Ames, Iowa. 755 pp<br />
A<br />
W<br />
I<br />
SW<br />
SC<br />
SE<br />
Coarse<br />
Moderately<br />
Coarse<br />
Soil Texture *<br />
Medium<br />
Moderately<br />
Fine<br />
Fine<br />
1 2 3 2 1<br />
* Soil texture is graded on a scale <strong>of</strong> 0 to 3; higher numbers<br />
denote textures to which species is most adapted.<br />
Adapted Regions:<br />
Annual Ryegrass<br />
• All Regions<br />
Availability<br />
Growth<br />
Form<br />
Average<br />
Height<br />
Native or<br />
Introduced<br />
Saline<br />
Tolerance<br />
Drought<br />
Tolerance<br />
Wet Soil<br />
Tolerance<br />
Competitiveness<br />
pH Range<br />
34<br />
Good Bunch 12 - 24 in. Introduced Excellent Low Excellent Strong 5 - 8.0
BEACH WILDRYE<br />
Photo: Brennan Veith Low, AK PM C<br />
<strong>Forage</strong> Value<br />
Beach Wildrye produces a moderate forage yield compared<br />
to other forage grasses such as Smooth brome or Timothy. Its<br />
palatability for browsers is moderate to low. Beach Wildrye<br />
provides moderate to low nutritional value, depending upon<br />
when it is cut or grazed. This grass is usually easily digested,<br />
but can cause impaction problems in horses if consumed when<br />
the moisture content <strong>of</strong> the grass is low.<br />
Distribution and Adaptation<br />
Beach Wildrye is adapted to tidal and coastal areas and can<br />
be found growing along the coast <strong>of</strong> <strong>Alaska</strong>. It prefers coarse<br />
textured, sandy and/or well drained soils. Beach Wildrye will<br />
grow well in soils with a pH between 6.0 and 8.0. This grass<br />
can tolerate excessively wet and droughty conditions, and can<br />
withstand saline soils.<br />
A mature stand <strong>of</strong> Beach Wildrye<br />
Beach Wildrye<br />
Leymus mollis (L.)<br />
Description<br />
Leymus mollis (Beach Wildrye) is a long lived, cool season,<br />
perennial sod forming grass. It grows erect culms 50 to<br />
60 centimeters (20 to 24 inches) tall, from long creeping<br />
rootstocks. Beach Wildrye produces stout, aggressive<br />
rhizomes, which increases its ability to spread. Leaves vary<br />
in length from 25 to 51 cm (10 to 20 inches), and are coarsetextured.<br />
The inflorescence is a stiff spike that is 10 - 25 cm<br />
(4 to 10 inches) in length and roughly 13 mm (½ inch) wide.<br />
Beach Wildrye produces a large sized seed (33,000 seed per<br />
pound) and has low seedling vigor and germination rate. A<br />
fifty percent germination percentage for Beach Wildrye seed<br />
should be considered acceptable.<br />
Uses<br />
Livestock: Beach Wildrye can be used for pasture or silage.<br />
It is moderately palatable to a select class <strong>of</strong> livestock, such as<br />
cattle. This grass can be useful forage if grazed or cut for silage<br />
at the optimum growth stage.<br />
Wildlife: Beach Wildrye is utilized by small mammals and<br />
song birds for forage and cover. Due to its limited range and<br />
moderate palatability, it is generally not consumed by large<br />
grazing or browsing animals such as moose, caribou, elk or<br />
bison.<br />
Culture<br />
Beach Wildrye is commonly grown by planting sprigs from<br />
existing plants. A sprig is the smallest division taken from a live<br />
plant to grow a new plant. Survival percentage is greater when<br />
Beach Wildrye sprigs are planted than from seed. If using seed,<br />
drill to a depth <strong>of</strong> ¼ to ½ inch. Seeding rates depend greatly<br />
upon soil type, moisture, and location. The seeding rates<br />
below only apply to ‘Reeve’ Beach Wildrye, and the European<br />
species Leymus arenarius. An average rate for broadcast<br />
seeding <strong>of</strong> Beach Wildrye is 60 lbs/acre, and 30 lbs/acre when<br />
drill seeding. Including Beach Wildrye seed in a mixture is not<br />
recommended due to its weak ability to compete with other<br />
plants. All seeding rates are determined by using Pure Live<br />
Seed (PLS) calculations, as described in Appendix B.<br />
Appropriate fertilizer ratios depend upon soil type, chemistry,<br />
and location. Soil samples should be collected and analyzed<br />
before fertilizer is applied. Beach Wildrye is highly responsive<br />
to nitrogen fertilizer. 20N-20P-20K fertilizer applied at a rate <strong>of</strong><br />
500 to 600 lbs/acre yield good results.<br />
Management<br />
Beach Wildrye may be severely damaged or destroyed from<br />
traffic that causes compaction. Digestive impaction may occur<br />
in horses if grazed when the moisture content is low. A fungus<br />
and pest called ergot can replace or destroy Beach Wildrye<br />
seed. Ergot occasionally occurs in many cereal crops and<br />
other various grass species. This fungus can be poisonous if<br />
consumed by animals and should be avoided.<br />
35
Grass<br />
Photo: Casey Dinkel, AK PMC<br />
Cultivars and Releases<br />
• ‘Benson’ (Leymus mollis) - <strong>Alaska</strong> PMC release;<br />
Available only as vegetative cuttings (sprigs).<br />
• ‘Reeve’ (Leymus arenarius) - <strong>Alaska</strong> PMC release;<br />
Available as seed.<br />
References<br />
W<br />
W<br />
SW SC SE<br />
SW SC SE<br />
Wright, S.J. and P.K. Czapla (2010) <strong>Alaska</strong> Coastal Revegetation & Erosion<br />
Control Guide, <strong>State</strong> <strong>of</strong> <strong>Alaska</strong>, Division <strong>of</strong> Agriculture, <strong>Plant</strong> <strong>Materials</strong> <strong>Center</strong>,<br />
Anchorage, <strong>Alaska</strong>. 234 pp Link: http://dnr.alaska.gov/ag/akpmc/reveg/<br />
Wright, S.J. and P. Hunt (2008) A Revegetation Guide for <strong>Alaska</strong>, <strong>State</strong> <strong>of</strong><br />
<strong>Alaska</strong>, Division <strong>of</strong> Agriculture, <strong>Plant</strong> <strong>Materials</strong> <strong>Center</strong>, Anchorage, <strong>Alaska</strong>.<br />
160 pp Link: http://dnr.alaska.gov/ag/akpmc/pdf/Reveg<strong>Manual</strong>.pdf<br />
Beach Wildrye, Leymus mollis<br />
Klebesadel, L.J. (1985) Beach Wildrye, Characteristics and Uses <strong>of</strong> a Native<br />
<strong>Alaska</strong>n Grass <strong>of</strong> Uniquely Coastal Distribution. In Agroborealis, Vol. 17, #2,<br />
1985 p 31-38<br />
Hulten, E. (1968) Flora <strong>of</strong> <strong>Alaska</strong> and Neighboring Territories. Stanford<br />
University press. Stanford California. 1008 pp<br />
W<br />
SW<br />
SC<br />
SE<br />
Klebesadel, L.J. (1983) <strong>Forage</strong> Crops In <strong>Alaska</strong> - Bulletin 63, University <strong>of</strong><br />
<strong>Alaska</strong>, School <strong>of</strong> Agriculture and Land Resource Management, Agricultural<br />
Experiment Station. 16 pp<br />
Natural Resource Conservation Service (2000) USDA National <strong>Plant</strong> Data<br />
<strong>Center</strong> [online] Link: http://plants.usda.gov/java/<br />
Coarse<br />
Moderately<br />
Coarse<br />
Soil Texture *<br />
Medium<br />
Moderately<br />
Fine<br />
2 3 3 2 1<br />
Fine<br />
* Soil texture is graded on a scale <strong>of</strong> 0 to 3; higher numbers<br />
denote textures to which species is most adapted.<br />
Species not<br />
adapted to region<br />
Adapted Regions:<br />
Beach Wildrye<br />
• Western<br />
• Southwest<br />
• Southcentral<br />
• Southeast<br />
see variety detail at left<br />
Availability<br />
Growth<br />
Form<br />
Average<br />
Height<br />
Native or<br />
Introduced<br />
Saline<br />
Tolerance<br />
Drought<br />
Tolerance<br />
Wet Soil<br />
Tolerance<br />
Competitiveness<br />
pH Range<br />
36<br />
Poor Sod 24 in. Native Excellent Good Good Weak 6.0 - 8.0
Photo: Stoney J. Wright , AK PMC<br />
BERING HAIRGRASS<br />
<strong>Forage</strong> Value<br />
Bering Hairgrass produces good quality hay for most classes<br />
<strong>of</strong> livestock and wildlife. Hairgrass provides ample amounts <strong>of</strong><br />
protein, depending on its growing stage. Bering Hairgrass can<br />
provide good summer pasture forage, however most livestock<br />
find this grass unpalatable. As a result, an animal’s diet may<br />
consist <strong>of</strong> only 1-3% Bering Hairgrass.<br />
Distribution and Adaptation<br />
Bering Hairgrass has tufted leaves and a branched inflorescence<br />
Bering Hairgrass<br />
Deschamspia beringensis (L.)<br />
Description<br />
Deschampsia beringensis (Bering Hairgrass) is a<br />
highly variable, perennial, cool season bunch grass.<br />
The species grows from 50 to 60 centimeters (20<br />
- 24 inches) tall. Stems are erect, and the leaves are between<br />
1.5 - 4 mm (.06 and .16 inches) wide, flat or rolled. The leaves<br />
are mostly basal in a dense tuft. Bering Hairgrass’s inflorescence<br />
is a loosely branched, open panicle from 10 - 25 centimeters<br />
(4 to 10 inches) in length. There are two florets (flowers)<br />
per spikelet. Flowering occurs from May to September.<br />
Bering Hairgrass seeds mature from late June to late September,<br />
depending on location. Deschampsia beringensis produces<br />
approximately 1,360,000 seeds per pound <strong>of</strong> seed.<br />
Bering Hairgrass populations occupy moist to seasonally<br />
flooded, sunny environments. Bering Hairgrass is adapted<br />
to a pH range from 5.5 to 7.2. Salinity tolerance is generally<br />
low, but plants growing in coastal estuaries may be slightly<br />
more salt tolerant. Bering Hairgrass habitat includes coastal<br />
terraces, upper tidal marshes, seasonally wet prairies, and<br />
moist subalpine mountain meadows.<br />
Culture<br />
When planting Bering Hairgrass, seed should be planted<br />
¼ to ½ inch deep. Seeding rates depend greatly upon soil<br />
type, moisture, and location. An average seeding rate for<br />
broadcasting is 12 lbs/acre and 6 lbs/acre when drill seeding.<br />
All seeding rates are determined by using Pure Live Seed<br />
(PLS) calculations, as described in Appendix B, as described in<br />
Appendix B.<br />
Appropriate fertilizer ratios depend upon soil type, chemistry,<br />
and location. Soil samples should be collected and analyzed<br />
before fertilizer is applied. Pastures and hay fields should<br />
be irrigated when necessary. Irrigation in combination with<br />
fertilization should increase overall yields.<br />
Uses<br />
Livestock: Bering Hairgrass can be utilized as hay or as<br />
a pasture crop. It is used by cattle, horses, and sheep. The<br />
palatability <strong>of</strong> Bering Hairgrass is moderate to low for most<br />
classes <strong>of</strong> livestock.<br />
Wildlife: A large variety <strong>of</strong> wildlife utilize Bering Hairgrass<br />
for cover. Most wildlife will not typically utilize the species as<br />
<strong>of</strong>ten as domestic livestock. Bering Hairgrass has moderate to<br />
low palatability for elk, bison and moose.<br />
Management<br />
Bering Hairgrass is adapted to coastal regions and is well suited<br />
for <strong>Alaska</strong>’s maritime environments. One should be aware<br />
that Bering Hairgrass grows aggressively and tends to compete<br />
with other grass species. Several diseases are associated with<br />
Bering Hairgrass, including ergot, stripe smut, blind seed and<br />
several turf diseases. Hairgrass is also vulnerable to several<br />
leaf spots and rusts. Insect pests such as aphids, billbugs,<br />
and leafhoppers can threaten stands <strong>of</strong> Bering Hairgrass, and<br />
should be monitored.<br />
37
Grass<br />
Photo: Brennan Veith Low, AK PMC<br />
Cultivars and Releases<br />
Bering Hairgrass, Deschampsia beringensis<br />
• ‘Norcoast’ - University <strong>of</strong> <strong>Alaska</strong> Fairbanks release.<br />
A<br />
References<br />
W I SW SC SE<br />
Wright, S.J. and P.K. Czapla (2010) <strong>Alaska</strong> Coastal Revegetation & Erosion<br />
Control Guide, <strong>State</strong> <strong>of</strong> <strong>Alaska</strong>, Division <strong>of</strong> Agriculture, <strong>Plant</strong> <strong>Materials</strong> <strong>Center</strong>,<br />
Anchorage, <strong>Alaska</strong>. 234 pp Link: http://dnr.alaska.gov/ag/akpmc/reveg/<br />
Wright, S.J. and P. Hunt (2008) A Revegetation Guide for <strong>Alaska</strong>, <strong>State</strong> <strong>of</strong><br />
<strong>Alaska</strong>, Division <strong>of</strong> Agriculture, <strong>Plant</strong> <strong>Materials</strong> <strong>Center</strong>, Anchorage, <strong>Alaska</strong>.<br />
160 pp Link: http://plants.alaska.gov/pdf/Reveg<strong>Manual</strong>.pdf<br />
A<br />
W<br />
I<br />
SW<br />
SC<br />
SE<br />
Natural Resource Conservation Service (2000) USDA National <strong>Plant</strong> Data<br />
<strong>Center</strong> [online] Link: http://plants.usda.gov/java/<br />
Soil Texture *<br />
Coarse<br />
Moderately<br />
Coarse<br />
Medium<br />
Moderately<br />
Fine<br />
Fine<br />
0 1 3 3 1<br />
* Soil texture is graded on a scale <strong>of</strong> 0 to 3; higher numbers<br />
denote textures to which species is most adapted.<br />
Adapted Regions:<br />
Bering Hairgrass<br />
• All Regions<br />
Availability<br />
Growth<br />
Form<br />
Average<br />
Height<br />
Native or<br />
Introduced<br />
Saline<br />
Tolerance<br />
Drought<br />
Tolerance<br />
Wet Soil<br />
Tolerance<br />
Competitiveness<br />
pH Range<br />
Good Bunch 20 - 24 in. Native Poor Good Good Strong 5.5 - 7.2<br />
38
BLUEJOINT REEDGRASS<br />
Photo: Casey Dinkel, AK PMC<br />
<strong>Forage</strong> Value<br />
Bluejoint furnishes excellent forage for livestock and some<br />
wildlife. As this grass matures, it quickly becomes tough and<br />
unpalatable, causing protein values to drop considerably and<br />
crude fiber content to increase. Bluejoint makes favorable hay<br />
and is palatable forage if managed properly. However, when<br />
putting effort and expense into seedbed preparation, one<br />
should consider growing more desirable forage grasses than<br />
Bluejoint Reedgrass. Seed availability is poor and prices are<br />
usually high for this species.<br />
Distribution and Adaptation<br />
Stands <strong>of</strong> Bluejoint can tolerate a thick build up <strong>of</strong> litter and<br />
mulch. This species can be found in highly organic peat and<br />
clay soils, but prefers a silty soil. Bluejoint is adapted to a wide<br />
range <strong>of</strong> temperatures (-40 °F to 105 °F) and precipitation<br />
regimes. It is extremely winter hardy.<br />
Bluejoint Reedgrass, Calamagrostis canadensis<br />
Bluejoint Reedgrass<br />
Calamagrostis canadensis (L.)<br />
Description<br />
Calamagrostis canadensis, Bluejoint Reedgrass is a tall, erect,<br />
cool season perennial grass that is found in wet meadows<br />
and prairies. The creeping rhizomes and rootstocks result<br />
in natural stands having a hummocky, uneven appearance.<br />
Erect culms are slender, not branched; grow to be 90 to 100<br />
centimeters (36 to 40 inches) tall. Leaves are bluish green,<br />
elongated and very narrow; rough to the touch. The caryopses<br />
are ellipsoidal, yellow-brown, smooth, and about .76 to 1.27<br />
mm (.03 -.05 inches) long. Inflorescence (seed-head) open<br />
panicle with single caryopsis borne in each spikelet (Barkley,<br />
1986). Bluejoint flowers from June to August and is a typical<br />
wind pollinated species like most grasses. Calamagrostis<br />
canadensis produces approximately 2,720,000 seeds per<br />
pound <strong>of</strong> seed.<br />
Uses<br />
Livestock: Bluejoint may be used for hay or pasture land.<br />
Cattle, sheep and horses find this grass highly palatable during<br />
early growth prior to seedhead formation.<br />
Wildlife: Bluejoint is utilized by bison, elk and deer, especially<br />
during the early portion <strong>of</strong> the growing season. It also has<br />
value as food and cover for waterfowl, small rodents, and<br />
some upland game birds.<br />
Bluejoint has broad ecological adaptations; occurring in a<br />
wide range <strong>of</strong> environments - from lowland wetlands to windswept<br />
alpine ridges. The species has a wide pH tolerance (pH<br />
4.5 to 8), from very acidic to moderately alkaline soils. Bluejoint<br />
can tolerate fresh to slightly brackish water.<br />
Culture<br />
An average broadcast seeding rate for Bluejoint is 6 - 8 lbs/<br />
acre. When drill seeding, 2 - 4 lbs/acre is appropriate. Fall<br />
seedings should be made at least 6 weeks before a killing frost<br />
is expected. Seedings should be drilled at a depth <strong>of</strong> 1 /4 inch<br />
and no deeper than 3 /8 <strong>of</strong> an inch if possible. All seeding rates<br />
are determined by using Pure Live Seed (PLS) calculations, as<br />
described in Appendix B.<br />
Appropriate fertilizer ratios depend upon soil type, chemistry,<br />
and location. Soil samples should be collected and analyzed<br />
before fertilizer is applied. Bluejoint responds well to nitrogen,<br />
which has been shown to increase protein levels and overall<br />
forage yields. Pastures and hay fields should be irrigated when<br />
necessary. Irrigation, in combination with fertilization, should<br />
increase overall yields.<br />
Management<br />
Bluejoint is intolerant <strong>of</strong> heavy grazing and/or repeated<br />
harvests. Heavy trampling by livestock or wildlife can break<br />
the rhizomes and add to soil compaction in wetter areas.<br />
When over 40 percent <strong>of</strong> the plant is grazed, future yields can<br />
decrease by 15-20 percent. Harvesting should be restricted<br />
to a single cutting per growing season. When unfertilized and<br />
subjected to frequent grazing or harvest, Bluejoint stands are<br />
<strong>of</strong>ten damaged and persistence is poor.<br />
39
Fertilized stands <strong>of</strong> Bluejoint may produce 2 or 3 times more<br />
total forage than unfertilized stands. Also, fertilized stands<br />
can produce 10-20% higher protein yields and are considered<br />
more palatable for livestock and wildlife. Problems can occur<br />
with virgin stands <strong>of</strong> Bluejoint Reedgrass due to the large<br />
amount <strong>of</strong> surface debris that can accumulate from previous<br />
years’ growth. This hummocky layer can prevent top dressed<br />
fertilizers from reaching the living grass root zone. This layer<br />
can be removed by burning, blading, or mechanical mixing <strong>of</strong><br />
the surface organic layer.<br />
Photo: Brennan Veith Low, AK PMC<br />
Grass<br />
Several potential pests have been associated with Bluejoint<br />
Reedgrass throughout the lower 48 states and parts <strong>of</strong> <strong>Alaska</strong>.<br />
The nematode Subanguina calamagrostis invades the leaf<br />
tissue <strong>of</strong> the grass, forming galls that cause the leaves to become<br />
twisted and contorted. A fungus, Dilophospora alopecuri, can<br />
then invade the leaves <strong>of</strong> Bluejoint Reedgrass, using the entry<br />
wound caused by the aforementioned nematode.<br />
Cultivars and Releases<br />
• ‘Sourdough’ - University <strong>of</strong> <strong>Alaska</strong> Fairbanks release.<br />
A W I SW SC SE<br />
References<br />
Wright, S.J. and P.K. Czapla (2010) <strong>Alaska</strong> Coastal Revegetation & Erosion<br />
Control Guide, <strong>State</strong> <strong>of</strong> <strong>Alaska</strong>, Division <strong>of</strong> Agriculture, <strong>Plant</strong> <strong>Materials</strong> <strong>Center</strong>,<br />
Anchorage, <strong>Alaska</strong>. 234 pp Link: http://dnr.alaska.gov/ag/akpmc/reveg/<br />
Wright, S.J. and P. Hunt (2008) A Revegetation Guide for <strong>Alaska</strong>, <strong>State</strong> <strong>of</strong><br />
<strong>Alaska</strong>, Division <strong>of</strong> Agriculture, <strong>Plant</strong> <strong>Materials</strong> <strong>Center</strong>, Anchorage, <strong>Alaska</strong>.<br />
160 pp Link: http://dnr.alaska.gov/ag/akpmc/pdf/Reveg<strong>Manual</strong>.pdf<br />
Klebesadel, L.J. (1983) <strong>Forage</strong> Crops In <strong>Alaska</strong> - Bulletin 63, University <strong>of</strong><br />
<strong>Alaska</strong>, School <strong>of</strong> Agriculture and Land Resource Management, Agricultural<br />
Experiment Station. 16 pp<br />
Klebesadel, L.J., R.L. Taylor, W.M. Laughlin, W.W. Mitchell, G.J. Michaelson<br />
and J. Purser (1983) Grain and <strong>Forage</strong> Crops for Southcentral <strong>Alaska</strong>,<br />
University <strong>of</strong> <strong>Alaska</strong> , Palmer <strong>Alaska</strong>. 10pp<br />
Natural Resource Conservation Service (2000) USDA National <strong>Plant</strong> Data<br />
<strong>Center</strong> [online] Link: http://plants.usda.gov/java/<br />
Skinner, Q.D, Wright, S.J., Henszey, R. J., Henszey, J.L. and Wyman, S.K.<br />
(2012) A Field Guide to <strong>Alaska</strong> Grasses, Education Resources Publishing,<br />
Cummings Georgia. 384 pp<br />
A mature stand <strong>of</strong> Bluejoint Reedgrass<br />
Klebesadel, L.J. and Laughlin, W.M. (1964) Utilization <strong>of</strong> Native Bluejoint<br />
Grass in <strong>Alaska</strong>, University <strong>of</strong> <strong>Alaska</strong>, Agricultural Experiment Station. 22 pp<br />
Stubbendieck, J., S.L. Hatch, L.M. Landholt (2003) A Field Guide, North<br />
American Wildland <strong>Plant</strong>s, University <strong>of</strong> Nebraska, University <strong>of</strong> Nebraska<br />
press. Lincoln, Nebraska. 501 pp<br />
A<br />
W<br />
I<br />
SW<br />
SC<br />
SE<br />
Coarse<br />
Moderately<br />
Coarse<br />
Soil Texture *<br />
Medium<br />
Moderately<br />
Fine<br />
Fine<br />
0 2 3 3 1<br />
* Soil texture is graded on a scale <strong>of</strong> 0 to 3; higher numbers<br />
denote textures to which species is most adapted.<br />
Adapted Regions:<br />
Bluejoint Reedgrass<br />
• All Regions<br />
Availability<br />
Growth<br />
Form<br />
Average<br />
Height<br />
Native or<br />
Introduced<br />
Saline<br />
Tolerance<br />
Drought<br />
Tolerance<br />
Wet Soil<br />
Tolerance<br />
Competitiveness<br />
pH Range<br />
40<br />
Poor Sod 36 - 40 in. Native Poor Good Good Strong 4.5 - 8
KENTUCKY BLUEGRASS<br />
Photo: <strong>Alaska</strong> PMC<br />
<strong>Forage</strong> Value<br />
Kentucky bluegrass is excellent forage grass for most livestock<br />
and wildlife. It provides adequate nutritional value in the early<br />
spring before other plant species emerge. Once Kentucky<br />
bluegrass develops seed, the forage value and palatability<br />
drop considerably. Kentucky bluegrass is commonly used for<br />
pasture land, but considered undesirable for hay fields because<br />
<strong>of</strong> its low growth form, poor yield, and early maturity.<br />
Distribution and Adaptation<br />
Kentucky Bluegrass<br />
Poa pratensis (L.)<br />
Description<br />
Kentucky Bluegrass, Poa pratensis<br />
Poa pratensis (Kentucky bluegrass) is a perennial, cool-season,<br />
sod-forming grass native to Europe. This plant is about 45 to 60<br />
centimeters (18 - 24 inches) tall, although this height falls to 10<br />
to 15 cm (4 - 6 inches) when intensively grazed. Inflorescence<br />
(seed-head) has an open panicle and produces many small<br />
seeds. There are about 2,177,000 seeds per pound <strong>of</strong> seed.<br />
Leaves are from 15 to 30 cm (6 to 12 inches) long, and boatshaped<br />
(keeled) at the tips. Leaves are smooth, s<strong>of</strong>t, and about<br />
3 - 7 mm ( 1 /8 to 1 /4 inch) wide. Kentucky bluegrass becomes<br />
dormant during the heat <strong>of</strong> summer, but regains its green color<br />
in fall. Growth starts early in the spring. Tiller buds develop<br />
into stems or rhizomes. New rhizomes also arise from nodes<br />
<strong>of</strong> older rhizomes. Most rhizomes will penetrate 2 to 4 inches<br />
into the soil, but some go down more than 5 inches.<br />
Uses<br />
Livestock: Kentucky bluegrass is typically used for pasture<br />
land rather than as a hay crop, due to its shorter growing<br />
height. It is highly palatable to cattle, horses and sheep early<br />
in the spring, before other plants begin to grow. Kentucky<br />
bluegrass produces relatively low yields compared to other<br />
pasture grasses.<br />
Wildlife: Kentucky bluegrass is highly palatable to bison and<br />
elk. The tender plants are grazed immediately after growth<br />
begins, and the leaves remain succulent and green as long as<br />
soil moisture is present. Poa pratensis seeds are also eaten by<br />
several kinds <strong>of</strong> songbirds and rodents.<br />
Kentucky bluegrass is used throughout the U.S. It is best<br />
adapted to well-drained, fertile, medium-textured soils <strong>of</strong><br />
limestone origin. Performance on poorly drained and heavytextured<br />
soils is satisfactory. Favorable pH level for Kentucky<br />
bluegrass is between 6.0 and 7.5. Kentucky bluegrass grows<br />
best in humid areas. Optimum temperatures for forage production<br />
are between 60 °F and 90 °F. Kentucky bluegrass is<br />
essentially dormant during dry or excessively hot weather, allowing<br />
it to survive extreme temperatures. It grows best with<br />
direct sunlight, but will do well in the shade, so long as ample<br />
moisture and nutrients are available.<br />
Culture<br />
An average broadcast seeding rate for Kentucky bluegrass is<br />
6 - 10 lbs/acre; a rate <strong>of</strong> 2 - 4 lbs/acre is used for drill seeding<br />
or when seeded in mixtures. All seeding rates are determined<br />
by using Pure Live Seed (PLS) calculations, as described in<br />
Appendix B. Kentucky bluegrass seed should be planted to a<br />
depth <strong>of</strong> 1 /4 inch to 1 /2 inch.<br />
Appropriate fertilizer ratios depend upon soil type, chemistry,<br />
and location. Soil samples should be collected and analyzed<br />
before fertilizer is applied. A pasture containing Kentucky<br />
bluegrass should be irrigated when necessary. Irrigation in<br />
combination with fertilization should increase overall yields.<br />
Management<br />
Proper fertilization and liming are the most important phases<br />
<strong>of</strong> Kentucky bluegrass management. For pastures, grazing<br />
should begin when grass is about 5 inches tall. Kentucky<br />
bluegrass should not be grazed shorter than 1- 1 /2 to 2 inches.<br />
Otherwise, sod will become weedy and unproductive. When<br />
overgrazed, poor root and rhizome development occurs,<br />
allowing weeds and shrubs to invade the pasture.<br />
Kentucky bluegrass is susceptible to attack by many diseases<br />
and insects. It is sometimes vulnerable to fungal infections,<br />
leaf spot, rust and powdery mildew. Depending on region,<br />
the grass is also susceptible to white grubs, billbugs, and sod<br />
webworms.<br />
41
Photo: <strong>Alaska</strong> PMC<br />
Grass<br />
A field <strong>of</strong> Kentucky Bluegrass in southcentral <strong>Alaska</strong><br />
Skinner, Q.D, Wright, S.J., Henszey, R. J., Henszey, J.L. and Wyman, S.K.<br />
(2012) A Field Guide to <strong>Alaska</strong> Grasses, Education Resources Publishing,<br />
• ‘Nugget’ - released by University <strong>of</strong> <strong>Alaska</strong> Fairbanks. Cummings Georgia. 384 pp<br />
Cultivars and Releases<br />
• ‘Park’ - released from Minnesota<br />
References<br />
I SC SE<br />
I SC SE<br />
Wright, S.J. and P. Hunt (2008) A Revegetation Guide for <strong>Alaska</strong>, <strong>State</strong> <strong>of</strong><br />
<strong>Alaska</strong>, Division <strong>of</strong> Agriculture, <strong>Plant</strong> <strong>Materials</strong> <strong>Center</strong>, Anchorage, <strong>Alaska</strong>.<br />
160 pp Link: http://dnr.alaska.gov/ag/akpmc/pdf/Reveg<strong>Manual</strong>.pdf<br />
Klebesadel, L.J. (1976) Early <strong>Plant</strong>ing Is Important to <strong>Alaska</strong>n Growers <strong>of</strong><br />
Bluegrass and Red Fescue Seed, In Agroborealis, Vol. 8 #1, Jan- 1976, p 22-24.<br />
Stubbendieck, J., S.L. Hatch and L.M. Landholt (2003) A Field Guide, North<br />
American Wildland <strong>Plant</strong>s. University <strong>of</strong> Nebraska, University <strong>of</strong> Nebraska<br />
press. Lincoln, Nebraska. 501 pp<br />
Maurice, E.H., D.S. Metcalfe and R.F. Barnes (1973) <strong>Forage</strong>s, The Science <strong>of</strong><br />
Grassland Agriculture. University <strong>of</strong> Iowa <strong>State</strong>, Iowa <strong>State</strong> University Press.<br />
Ames, Iowa. 755 pp<br />
Klebesadel, L.J. (1983) <strong>Forage</strong> Crops In <strong>Alaska</strong> - Bulletin 63, University <strong>of</strong><br />
<strong>Alaska</strong>, School <strong>of</strong> Agriculture and Land Resource Management, Agricultural<br />
Experiment Station. 16 pp<br />
Klebesadel, L.J., R.L. Taylor, W.M. Laughlin, W.W. Mitchell, G.J. Michaelson<br />
and J. Purser (1983) Grain and <strong>Forage</strong> Crops for Southcentral <strong>Alaska</strong>,<br />
University <strong>of</strong> <strong>Alaska</strong> , Palmer <strong>Alaska</strong>. 10 pp<br />
Natural Resource Conservation Service (2000) USDA National <strong>Plant</strong> Data<br />
<strong>Center</strong> [online] Link: http://plants.usda.gov/java/<br />
Pawnee Buttes Seed Inc. (2004) A Guide to Grasses, Pawnee Butte Seed Inc.,<br />
Greeley, Colorado. 107 pp [online] Link: http://www.pawneebuttesseed.<br />
com/guide_to_grasses.htm<br />
I<br />
SC<br />
SE<br />
Soil Conservation Service (1972) A Vegetative Guide for <strong>Alaska</strong>. University<br />
<strong>of</strong> <strong>Alaska</strong>, Institute <strong>of</strong> Agricultural Sciences, Soil Conservation Service. 50 pp<br />
Coarse<br />
Moderately<br />
Coarse<br />
Soil Texture *<br />
Medium<br />
Moderately<br />
Fine<br />
0 2 3 3 1<br />
Fine<br />
* Soil texture is graded on a scale <strong>of</strong> 0 to 3; higher numbers<br />
denote textures to which species is most adapted.<br />
Species not<br />
adapted to region<br />
Adapted Regions:<br />
Kentucky Bluegrass<br />
• Interior<br />
• Southcentral<br />
• Southeast<br />
see variety detail at left<br />
Availability<br />
Growth<br />
Form<br />
Average<br />
Height<br />
Native or<br />
Introduced<br />
Saline<br />
Tolerance<br />
Drought<br />
Tolerance<br />
Wet Soil<br />
Tolerance<br />
Competitiveness<br />
pH Range<br />
42<br />
Good Sod 18 - 24 in. Introduced Poor Poor Good Moderate 6 - 7.5
MEADOW BARLEY<br />
Photo: Casey Dinkel, AK PMC<br />
<strong>Forage</strong> Value<br />
Meadow Barley produces a marginal amount <strong>of</strong> protein and<br />
is utilized most <strong>of</strong>ten by large grazing animals in the early<br />
spring. As with most grasses, nutritional value and digestibility<br />
diminish substantially after seed development or without<br />
adequate moisture.<br />
Distribution and Adaptation<br />
Meadow Barley has a narrow panicle with a purplish hue.<br />
Meadow Barley<br />
Hordeum brachyantherum (L.)<br />
Description<br />
Hordeum brachyantherum (Meadow Barley) is a short to<br />
intermediate lived, cool season, perennial bunch grass. It<br />
grows semi erect to erect culms 38 - 75 centimeters (15 to 30<br />
inches) in height. Leaves are green to bluish green, and are 3<br />
to 6.5 mm ( 1 /8 to 1 /4 inch) wide. The inflorescence, or seedhead,<br />
is a narrow panicle that is 2.5 - 10 cm (1 to 4 inches)<br />
in length and <strong>of</strong>ten <strong>of</strong> purplish color. This grass produces a<br />
medium sized seed with good seedling vigor. Meadow Barley<br />
seed possesses bristle like awns and non-viable florets that<br />
should be removed for easier seed flow through planting<br />
machinery. Seed per pound can vary widely depending upon<br />
the degree <strong>of</strong> seed conditioning. Bulky seed may contain<br />
30,000 to 100,000 seeds/lb, while highly processed seed can<br />
have upwards <strong>of</strong> 150,000 seeds per pound <strong>of</strong> seed.<br />
Meadow Barley is adapted to cool climates and can be found<br />
growing in wet meadows, salt marshes, along beaches, and<br />
riparian areas. This grass is adapted to finer textured soils<br />
like silts and clays but can also tolerate coarser textured soils<br />
that have adequate moisture. It prefers soils with a pH <strong>of</strong> 6.0 -<br />
8.5, and will not persist well in acidic environments. Meadow<br />
Barley has a moderate tolerance to drought conditions. It can<br />
also tolerate low nutrient and high saline soils.<br />
Culture<br />
Meadow Barley seed should be planted ¼ to ½ inch deep when<br />
drill seeded. This grass establishes easily and has high seedling<br />
vigor. Seeding rates depend greatly upon soil type, moisture,<br />
and location. An average seeding rate for broadcast seeding is<br />
4-8 lbs/acre, or 2-4 lbs/acre when drill seeding. When seeded<br />
in a mixture, apply at a rate <strong>of</strong> 4-6 lbs/acre. All seeding rates<br />
are determined by using Pure Live Seed (PLS) calculations, as<br />
described in Appendix B.<br />
Appropriate fertilizer ratios depend upon soil type, chemistry,<br />
and location. Soil samples should be collected and analyzed<br />
before fertilizer is applied. Pastures and hay fields should<br />
be irrigated when necessary. Irrigation, in combination with<br />
fertilization, should increase overall yields.<br />
Uses<br />
Livestock: Meadow Barley can be used for pasture land or<br />
hay. It has moderate to low palatability for most classes <strong>of</strong><br />
livestock. Palatability is higher if grazed in early spring before<br />
setting seed. Meadow Barley starts its growth in the early<br />
spring and matures in early to mid September.<br />
Wildlife: Meadow Barley is considered to have low palatability<br />
for most large wildlife animals, such as elk, bison, and moose.<br />
However, deer are known to utilize Meadow Barley in the<br />
spring, when nutrient values are still high. Small mammals,<br />
song birds, and water fowl may use this grass for cover and<br />
food, throughout various stages <strong>of</strong> its life cycle.<br />
Management<br />
Meadow Barley is responsive to irrigation and should be<br />
irrigated if planted on drier sites. It does not respond well to<br />
heavy grazing and pasture deferment should be considered<br />
for healthy stands to persist. This grass may be susceptible<br />
to several fungal diseases such as head smut and/or leaf and<br />
stem rust. Meadow Barley’s bristly awn can cause harm to<br />
some animals by working its way into the nose, mouth, and<br />
intestine.<br />
43
Photo: Brennan Veith Low, AK PMC<br />
Grass<br />
Cultivars and Releases<br />
• Lowell Point selected class germplasm;<br />
- <strong>Alaska</strong> PMC release.<br />
W SW SC SE<br />
Meadow Barley, Hordeum brachyantherum<br />
Hulten, E. (1968) Flora <strong>of</strong> <strong>Alaska</strong> and Neighboring Territories. Stanford<br />
University Press. Stanford California. 1008 pp<br />
Long, S.G. (1981) Characteristics <strong>of</strong> <strong>Plant</strong>s Used In Western Reclamation-<br />
Second Edition. Environmental Research & Technology. Fort Collins,<br />
Colorardo 137 pp.<br />
References<br />
Wright, S.J. and P.K. Czapla (2010) <strong>Alaska</strong> Coastal Revegetation & Erosion<br />
Control Guide, <strong>State</strong> <strong>of</strong> <strong>Alaska</strong>, Division <strong>of</strong> Agriculture, <strong>Plant</strong> <strong>Materials</strong><br />
<strong>Center</strong>. Palmer, <strong>Alaska</strong>. 234 pp Link: http://dnr.alaska.gov/ag/akpmc/reveg/<br />
Wright, S.J. and P. Hunt (2008) A Revegetation Guide for <strong>Alaska</strong>, <strong>State</strong> <strong>of</strong><br />
<strong>Alaska</strong>, Division <strong>of</strong> Agriculture, <strong>Plant</strong> <strong>Materials</strong> <strong>Center</strong>. Palmer, <strong>Alaska</strong>. 160 pp<br />
Link: http://dnr.alaska.gov/ag/akpmc/pdf/Reveg<strong>Manual</strong>.pdf<br />
Natural Resource Conservation Service (2000) USDA National <strong>Plant</strong> Data<br />
<strong>Center</strong> [online] Link: http://plants.usda.gov/java/<br />
W<br />
SW<br />
SC<br />
SE<br />
Skinner, Q.D, Wright, S.J., Henszey, R. J., Henszey, J.L. and Wyman, S.K.<br />
(2012) A Field Guide to <strong>Alaska</strong> Grasses, Education Resources Publishing,<br />
Cummings Georgia. 384 pp<br />
Maurice, E.H., D.S. Metcalfe and R.F. Barnes, (1973) <strong>Forage</strong>s, The Science <strong>of</strong><br />
Grassland Agriculture. University <strong>of</strong> Iowa <strong>State</strong>, Iowa <strong>State</strong> University Press.<br />
Ames, Iowa. 755 pp<br />
Coarse<br />
Moderately<br />
Coarse<br />
Soil Texture *<br />
Medium<br />
Moderately<br />
Fine<br />
Fine<br />
0 1 3 3 2<br />
* Soil texture is graded on a scale <strong>of</strong> 0 to 3; higher numbers<br />
denote textures to which species is most adapted.<br />
Species not<br />
adapted to region<br />
Adapted Regions:<br />
Meadow Barley<br />
• Western<br />
• Southwest<br />
• Southcentral<br />
• Southeast<br />
Availability<br />
Growth<br />
Form<br />
Average<br />
Height<br />
Native or<br />
Introduced<br />
Saline<br />
Tolerance<br />
Drought<br />
Tolerance<br />
Wet Soil<br />
Tolerance<br />
Competitiveness<br />
pH Range<br />
44<br />
Poor Bunch 24 in. Native Good Good Good Weak 6.0 - 8.5
MEADOW FOXTAIL<br />
<strong>Forage</strong> Value<br />
Meadow Foxtail produces moderate amounts <strong>of</strong> protein and is<br />
excellent quality forage for large grazing animals. It possesses<br />
good nutritional value and digestibility similar to that <strong>of</strong><br />
Timothy (Phleum pretense). Browsers such as moose do not<br />
find Meadow Foxtail to be as palatable as do grazing animals<br />
like cattle, bison and elk. As with most grasses, nutritional<br />
value diminishes substantially after seed development or<br />
without adequate moisture.<br />
Distribution and Adaptation<br />
Meadow Foxtail is adapted to cool, wet climates. It can be<br />
found growing in hay meadows, irrigation ditches, and along<br />
stream banks. Meadow Foxtail prefers fine-textured or poorly<br />
drained soils, such as silts and clays. This grass performs well<br />
in soils with a pH ranging from 5.8 to 8.0. Meadow Foxtail has<br />
a moderate tolerance to droughty and saline environments.<br />
Alopecurus pratensis can be found growing throughout most<br />
<strong>of</strong> <strong>Alaska</strong>, and portions <strong>of</strong> Canada and the United <strong>State</strong>s.<br />
Culture<br />
Meadow Foxtail, Alopecurus pratensis<br />
Meadow Foxtail<br />
Alopecurus pratensis (L.)<br />
Description<br />
Alopecurus pratensis (Meadow Foxtail) is a long lived, cool<br />
season, perennial bunch grass. It grows decumbent or erect<br />
culms 30 to 50 centimeters (12 to 20 inches) tall. Leaves vary<br />
in length from 5 to 30 cm (2 - 12 inches), and are roughly 6 to<br />
13 mm ( 1 /4 to 1 /2 inch wide). Meadow Foxtail’s inflorescence<br />
is a dense panicle and is 2.5 to 7.5 cm (1 to 3 inches) in length,<br />
and usually about 6 to 13 mm ( 1 /4 to 1 /2 inch) wide. This<br />
grass produces a medium size seed, which retains a hairy<br />
pubescence making it light and/or fluffy. Once established,<br />
Meadow Foxtail has high seedling vigor. Meadow Foxtail<br />
produces approximately 406,000 seeds per pound <strong>of</strong> seed.<br />
Uses<br />
Livestock: Meadow Foxtail can be used for pasture, hay, or<br />
silage. It is highly palatable to all classes <strong>of</strong> livestock, such as<br />
cattle, sheep, and horses. Meadow Foxtail starts its growth in<br />
early spring and provides livestock with adequate forage.<br />
Wildlife: Meadow Foxtail has moderate palatability for most<br />
classes <strong>of</strong> wildlife. Grazers such as elk and bison tend to select<br />
Meadow Foxtail more <strong>of</strong>ten than moose. It is also utilized by<br />
small mammals and song birds.<br />
Meadow Foxtail seed should be planted a ¼ to ½ inch deep,<br />
when drill seeded. This grass can be difficult to establish, but<br />
once in place seedling vigor is considered high. Seeding rates<br />
depend greatly upon soil type, moisture, and location. An<br />
average seeding rate for broadcasting is 4-8 lbs/acre and 2-4<br />
lbs/acre when drill seeding. When Meadow Foxtail is seeded<br />
in a mixture, apply at a rate <strong>of</strong> 4-6 lbs/acre. All seeding rates<br />
are determined by using Pure Live Seed (PLS) calculations, as<br />
described in Appendix B.<br />
Appropriate fertilizer ratios depend upon soil type, chemistry,<br />
and location. Soil samples should be collected and analyzed<br />
before fertilizer is applied. Pastures and hay fields should<br />
be irrigated when necessary and/or applicable. Irrigation in<br />
combination with fertilization should increase overall yields.<br />
Management<br />
Meadow Foxtail makes an excellent pasture, hay, or silage<br />
forage crop. It is less winter-hardy than Smooth Brome (Bromus<br />
inermis) but is more tolerant <strong>of</strong> acidic soils. Meadow Foxtail is<br />
found in areas with milder winters and more acidic soils, such<br />
as the Kenai Peninsula. Meadow Foxtail can be problematic<br />
when planting with a drill seeder, due to the hairy pubescence<br />
that remains on the seed after cleaning. To reduce mechanical<br />
problems, Meadow Foxtail can be planted along with other<br />
grass or legume species. It responds well to grazing as long as<br />
there is ample moisture. At present, there are no major pests<br />
in <strong>Alaska</strong> that threaten Meadow Foxtail.<br />
45
Photo: Paul Slichter, Pacific Northwest Wildflowers<br />
Grass<br />
Cultivars and Releases<br />
• There are no developed northern cultivars or releases<br />
<strong>of</strong> Meadow Foxtail at present.<br />
References<br />
A mature stand <strong>of</strong> Meadow Foxtail<br />
OSU Rangeland Ecology and Management (2005) Meadow Foxtail <strong>Plant</strong><br />
Characteristics [online] Link: http://oregonstate.edu/dept/range/sites/<br />
default/files/Meadow_20Foxtail.pdf<br />
Klebesadel, L.J. (1983) <strong>Forage</strong> Crops In <strong>Alaska</strong> - Bulletin 63, University <strong>of</strong><br />
<strong>Alaska</strong>, School <strong>of</strong> Agriculture and Land Resource Management, Agricultural<br />
Experiment Station. 16 pp<br />
Natural Resource Conservation Service (2000) USDA National <strong>Plant</strong> Data<br />
<strong>Center</strong> [online] Link: http://plants.usda.gov/java/<br />
Skinner, Q.D, Wright, S.J., Henszey, R. J., Henszey, J.L. and Wyman, S.K.<br />
(2012) A Field Guide to <strong>Alaska</strong> Grasses, Education Resources Publishing,<br />
Cummings Georgia. 384 pp<br />
SC<br />
SE<br />
Coarse<br />
Moderately<br />
Coarse<br />
Soil Texture *<br />
Medium<br />
Moderately<br />
Fine<br />
Fine<br />
0 1 3 3 2<br />
* Soil texture is graded on a scale <strong>of</strong> 0 to 3; higher numbers<br />
denote textures to which species is most adapted.<br />
Species not<br />
adapted to region<br />
Adapted Regions:<br />
Meadow Foxtail<br />
• Southcentral<br />
• Southeast<br />
Availability<br />
Growth<br />
Form<br />
Average<br />
Height<br />
Native or<br />
Introduced<br />
Saline<br />
Tolerance<br />
Drought<br />
Tolerance<br />
Wet Soil<br />
Tolerance<br />
Competitiveness<br />
pH Range<br />
46<br />
Poor Bunch 12 - 20 in. Introduced Good Good Excellent Strong 5.8 - 8.0
POLARGRASS<br />
find Polargrass to be as palatable as grazing animals like cattle,<br />
bison and elk. As with most grasses, the nutritional value <strong>of</strong><br />
Polargrass diminishes substantially after seed development or<br />
without adequate moisture.<br />
Distribution and Adaptation<br />
Polargrass is adapted to cool, wet climates, and is found<br />
growing along rivers, meadows, tundra, fresh water marshes,<br />
and inland levees. It is adapted to cold boggy soils and/or<br />
mesic up lands. This grass will grow well in soils with a pH<br />
ranging from 4.9 to 6.8. Polargrass is intolerant to droughty<br />
and/or saline environments. It prefers northern latitudes and<br />
can be found growing in portions <strong>of</strong> Greenland, Canada, and<br />
<strong>Alaska</strong>.<br />
Photo: <strong>Alaska</strong> PMC<br />
Polargrass, Arctagrostis latifolia<br />
Polargrass<br />
Arctagrostis latifolia (L.)<br />
Description<br />
Arctagrostis latifolia (Polargrass) is a long lived, cool season,<br />
perennial, sod forming grass. It grows erect culms 45 to 60<br />
centimeters (18 to 24 inches) tall. Polargrass leaves vary in<br />
length from a few inches to a foot and are usually 6 to 13 mm<br />
( 1 /4 - 1 /2 inch) wide. Inflorescence (seed-head) is narrow to<br />
somewhat open panicle 8 to 28 cm (3 to 11 inches) in length.<br />
Polargrass has low seedling vigor and produces a small seed<br />
with about 1,800,000 seeds per pound <strong>of</strong> seed.<br />
Uses<br />
Livestock: Polargrass can be used for pasture, hay, or silage.<br />
This grass is capable <strong>of</strong> generating high yields and can provide<br />
livestock with adequate forage and nutrition.<br />
Wildlife: Polargrass has shown to provide good forage for<br />
caribou and reindeer in northern regions throughout Canada<br />
and <strong>Alaska</strong>. Grizzly bears have been observed grazing large<br />
quantities <strong>of</strong> polargrass during spring and summer months. It<br />
also provides cover and forage for small mammals and various<br />
song birds.<br />
<strong>Forage</strong> Value<br />
Polargrass produces large amounts <strong>of</strong> protein and is a high<br />
quality forage for large grazing animals. It possesses good<br />
nutritional value and digestibility similar to that <strong>of</strong> Timothy<br />
(Phleum pratense). Browsers such as moose and deer do not<br />
Culture<br />
Polargrass seed should be planted ¼ to ½ inch deep. Low<br />
seedling vigor can make this grass difficult to establish. Seeding<br />
rates depend greatly upon soil type, moisture, and location.<br />
An average seeding rate when broadcasting Polargrass is 8 lbs/<br />
acre and 5 lbs/acre when drill seeding. Seeding Polargrass<br />
as part <strong>of</strong> a mix is not recommended because <strong>of</strong> the grass’s<br />
weak ability to compete with other plants. All seeding rates<br />
are determined by using Pure Live Seed (PLS) calculations, as<br />
described in Appendix B.<br />
Appropriate fertilizer ratios depend upon soil type, chemistry,<br />
and location. Soil samples should be collected and analyzed<br />
before fertilizer is applied. Pastures and hay fields should<br />
be irrigated when necessary. Irrigation in combination with<br />
fertilization should increase overall yields.<br />
Management<br />
Polargrass seedling vigor is poor and early growth rates<br />
are usually slow. It requires an environment with low<br />
competition, moderate moisture, and adequate nutrients.<br />
However, once Polargrass is established, it has early and<br />
vigorous spring growth. Production trials <strong>of</strong> unfertilized vs.<br />
fertilized Polargrass have shown the differences in yield to<br />
be insignificant, suggesting that Polargrass does not respond<br />
well to commercial fertilizers. More research needs to be<br />
conducted to validate this theory, however.<br />
Polargrass requires moderate amounts <strong>of</strong> moisture and<br />
should be irrigated when applicable. Arctagrostis latifolia is<br />
an extremely winter hardy grass, with a greater tolerance to<br />
winter ponding and icy conditions than other forage grasses<br />
like Timothy (Phleum pratense) and Smooth Brome (Bromus<br />
inermis).<br />
47
Photo: USDA Natural Resource Conservation Service<br />
Grass<br />
Cultivars and Releases<br />
• ‘Kenai’ - University <strong>of</strong> <strong>Alaska</strong> Fairbanks release.<br />
A W I SW SC SE<br />
• ‘Alyeska’ - University <strong>of</strong> <strong>Alaska</strong> Fairbanks release.<br />
A<br />
References<br />
A field <strong>of</strong> Polargrass, Arctagrostis latifolia<br />
W I SW SC SE A<br />
W<br />
Wright, S.J. and P.K. Czapla (2010) <strong>Alaska</strong> Coastal Revegetation & Erosion<br />
Control Guide, <strong>State</strong> <strong>of</strong> <strong>Alaska</strong>, Division <strong>of</strong> Agriculture, <strong>Plant</strong> <strong>Materials</strong> <strong>Center</strong>,<br />
Anchorage, <strong>Alaska</strong>. 234 pp Link: http://dnr.alaska.gov/ag/akpmc/reveg/<br />
Wright, S.J. and P. Hunt (2008) A Revegetation Guide for <strong>Alaska</strong>, <strong>State</strong> <strong>of</strong><br />
<strong>Alaska</strong>, Division <strong>of</strong> Agriculture, <strong>Plant</strong> <strong>Materials</strong> <strong>Center</strong>, Anchorage, <strong>Alaska</strong>.<br />
160 pp Link: http://dnr.alaska.gov/ag/akpmc/pdf/Reveg<strong>Manual</strong>.pdf<br />
Natural Resource Conservation Service (2000) USDA National <strong>Plant</strong> Data<br />
<strong>Center</strong> [online] Link: http://plants.usda.gov/java/<br />
Soil Conservation Service (1972) A Vegetative Guide for <strong>Alaska</strong>, University<br />
<strong>of</strong> <strong>Alaska</strong> Institute <strong>of</strong> Agricultural Sciences, Soil Conservation Service. 50 pp<br />
Hulten, E. (1968) Flora <strong>of</strong> <strong>Alaska</strong> and Neighboring Territories. Stanford<br />
University press. Stanford California. 1008 pp<br />
I<br />
SW<br />
SC<br />
SE<br />
Coarse<br />
Moderately<br />
Coarse<br />
Soil Texture *<br />
Medium<br />
Moderately<br />
Fine<br />
Fine<br />
0 1 3 2 1<br />
* Soil texture is graded on a scale <strong>of</strong> 0 to 3; higher numbers<br />
denote textures to which species is most adapted.<br />
Adapted Regions:<br />
Polargrass<br />
• All Regions<br />
Availability<br />
Growth<br />
Form<br />
Average<br />
Height<br />
Native or<br />
Introduced<br />
Saline<br />
Tolerance<br />
Drought<br />
Tolerance<br />
Wet Soil<br />
Tolerance<br />
Competitiveness<br />
pH Range<br />
48<br />
Poor Sod 24 in. Native Poor Good Excellent Poor 4.9 - 6.8
RED FESCUE<br />
Photo: Brennan Veith Low, AK PMC<br />
<strong>Forage</strong> Value<br />
The forage value <strong>of</strong> Red Fescue ranges from fair to good,<br />
depending on geographic location. It possesses fair nutritional<br />
value, even after freeze-up, until snow becomes too deep for<br />
grazing. Red Fescue is also known to retain high protein values<br />
throughout its growth stage.<br />
Distribution and Adaptation<br />
Red Fescue is hardy, wear-resistant, and shade tolerant. This<br />
grass is adapted to wet, acidic environments. It prefers well<br />
drained soils with a pH between 5 and 7.5, but requires ample<br />
moisture to become established. Red Fescue is adapted to<br />
cooler zones.<br />
In areas <strong>of</strong> high temperatures and humidity, Red Fescue may<br />
turn brown or deteriorate during the summer months. This<br />
grass will generally recover in the fall when temperature and<br />
moisture conditions are more favorable. Red Fescue is highly<br />
competitive and is found all over North America.<br />
Red Fescue is a winter-hardy grass, adapted for use across <strong>Alaska</strong>.<br />
Red Fescue<br />
Festuca rubra (L.)<br />
Description<br />
Festuca rubra (Red Fescue) is a cool season, introduced, sodforming<br />
grass. Leaves <strong>of</strong> Red Fescue are bright green, wiry, and<br />
narrow. They are pressed together in a “V” shape and appear<br />
nearly round. Sheaths reddish or purplish at base, culms<br />
sometimes bent and growing to about 35 - 46 centimeters (14<br />
- 18 inches) tall. The inflorescence (seed-head) is a contracted<br />
and/or narrow panicle. Red Fescue produces about 410,000<br />
seeds per pound <strong>of</strong> seed.<br />
Culture<br />
When planting Red Fescue, seed should be planted ¼ to ½ inch<br />
deep. Seeding rates depend greatly upon soil type, moisture,<br />
and location. An average seeding rate for broadcasting<br />
Red Fescue is 12 lbs/acre and 6 lbs/acre when drill seeding.<br />
Seeding rate calculations are based on Pure Live Seed (PLS), as<br />
described in Appendix B.<br />
Appropriate fertilizer ratios depend upon soil type, chemistry,<br />
and location. Soil samples should be collected and analyzed<br />
before fertilizer is applied. Fertilization, combined with<br />
irrigation, may increase overall yields.<br />
Uses<br />
Livestock: Red Fescue is used for hay, pasture land, or silage.<br />
It is also utilized by cattle and horses. In some cases, Red<br />
Fescue will make up 10-15% <strong>of</strong> domestic sheep diets.<br />
Wildlife: Red Fescue is consumed by deer, moose, elk and<br />
a variety <strong>of</strong> other wild ungulates. It is also great forage for<br />
upland game birds and various species <strong>of</strong> water fowl such as<br />
the lesser Canada goose.<br />
Management<br />
One should be aware <strong>of</strong> Red Fescue’s aggressiveness and<br />
ability to out-compete other plants. It is not uncommon for<br />
Red Fescue to dominate a growing site even when planted in a<br />
mix with other grass species. This should be considered when<br />
formulating a forage seeding mix. Red Fescue can also be used<br />
to prevent the invasion <strong>of</strong> alders and willows.<br />
49
References<br />
Wright, S.J. and P.K. Czapla (2010) <strong>Alaska</strong> Coastal Revegetation & Erosion<br />
Control Guide, <strong>State</strong> <strong>of</strong> <strong>Alaska</strong>, Division <strong>of</strong> Agriculture, <strong>Plant</strong> <strong>Materials</strong> <strong>Center</strong>,<br />
Anchorage, <strong>Alaska</strong>. 234 pp. Link: http://dnr.alaska.gov/ag/akpmc/reveg/<br />
Wright, S.J. and P. Hunt (2008) A Revegetation Guide for <strong>Alaska</strong>, <strong>State</strong> <strong>of</strong><br />
<strong>Alaska</strong>, Division <strong>of</strong> Agriculture, <strong>Plant</strong> <strong>Materials</strong> <strong>Center</strong>, Anchorage, <strong>Alaska</strong>.<br />
160 pp Link: http://dnr.alaska.gov/ag/akpmc/pdf/Reveg<strong>Manual</strong>.pdf<br />
Klebesadel, L.J. (1983) <strong>Forage</strong> Crops In <strong>Alaska</strong> - Bulletin 63, University <strong>of</strong><br />
<strong>Alaska</strong>, School <strong>of</strong> Agriculture and Land Resource Management, Agricultural<br />
Experiment Station. 16 pp.<br />
Grass<br />
Klebesadel, L.J., R.L. Taylor, W.M. Laughlin, W.W. Mitchell, G.J. Michaelson<br />
and J. Purser (1983) Grain and <strong>Forage</strong> Crops for Southcentral <strong>Alaska</strong>,<br />
University <strong>of</strong> <strong>Alaska</strong> , Palmer <strong>Alaska</strong>. 10 pp.<br />
Natural Resource Conservation Service (2000) USDA National <strong>Plant</strong> Data<br />
<strong>Center</strong> [online] Link: http://plants.usda.gov/java/<br />
Pawnee Buttes Seed Inc. (2004) A Guide to Grasses, Pawnee Butte Seed Inc.,<br />
Greeley, Colorado. 107 pp. [online] Link: http://www.pawneebuttesseed.<br />
com/guide_to_grasses.htm<br />
Soil Conservation Service (1972) A Vegetative Guide for <strong>Alaska</strong>. University<br />
<strong>of</strong> <strong>Alaska</strong>, Institute <strong>of</strong> Agricultural Sciences, Soil Conservation Service. 50 pp.<br />
Skinner, Q.D, Wright, S.J., Henszey, R. J., Henszey, J.L. and Wyman, S.K.<br />
(2012) A Field Guide to <strong>Alaska</strong> Grasses, Education Resources Publishing,<br />
Cummings Georgia. 384 pp<br />
Klebesadel, L.J. (1976) Early <strong>Plant</strong>ing Is Important to <strong>Alaska</strong>n Growers <strong>of</strong><br />
Bluegrass and Red Fescue Seed In Agroborealis, Vol. 8. Number #1, Jan-<br />
1976, p 22-24.<br />
Maurice, E.H., D.S. Metcalfe and R.F. Barnes (1973) <strong>Forage</strong>s, The Science <strong>of</strong><br />
Grassland Agriculture. University <strong>of</strong> Iowa <strong>State</strong>, Iowa <strong>State</strong> University Press.<br />
Ames, Iowa. 755 pp.<br />
Varieties and Releases<br />
A field <strong>of</strong> Red Fescue in southcentral <strong>Alaska</strong><br />
Photo: <strong>Alaska</strong> PMC<br />
• ‘Arctared’ - University <strong>of</strong> <strong>Alaska</strong> Fairbanks release.<br />
A W I SW SC SE<br />
• ‘Boreal’ - Alberta, Canada release.<br />
W I SW SC SE<br />
• ‘Pennlawn’ - Pennsylvania release.<br />
SW SC SE<br />
• Henderson Ridge selected class germplasm;<br />
- <strong>Alaska</strong> PMC release.<br />
SW<br />
SC<br />
A<br />
W<br />
I<br />
SW<br />
SC<br />
SE<br />
Coarse<br />
Moderately<br />
Coarse<br />
Soil Texture *<br />
Medium<br />
Moderately<br />
Fine<br />
1 2 3 3 1<br />
Fine<br />
* Soil texture is graded on a scale <strong>of</strong> 0 to 3; higher numbers<br />
denote textures to which species is most adapted.<br />
Species not<br />
adapted to region<br />
Adapted Regions:<br />
Red Fescue<br />
• All Regions<br />
see variety detail at left<br />
Availability<br />
Growth<br />
Form<br />
Average<br />
Height<br />
Native or<br />
Introduced<br />
Saline<br />
Tolerance<br />
Drought<br />
Tolerance<br />
Wet Soil<br />
Tolerance<br />
Competitiveness<br />
pH Range<br />
50<br />
Poor - Good Sod 14 - 18 in. Introduced Poor Good Good Strong 5 - 7.5
SIBERIAN WILDRYE<br />
Photo: Casey Dinkel, AK PMC<br />
<strong>Forage</strong> Value<br />
Siberian Wildrye has marginal forage quality. This grass<br />
also has poor digestibility due to large amounts <strong>of</strong> lignin,<br />
cellulose and hemicellulose. It has a protein content similar<br />
to Polar Brome (Bromus inermis), Slender Wheatgrass (Elymus<br />
trachycaulus), and Timothy (Phleum pratense), after the first<br />
year <strong>of</strong> establishment. Like most forage grasses, Siberian<br />
Wildrye nutrient levels are highest just before the plant<br />
develops its seedhead. There is limited Siberian Wildrye<br />
research data available concerning actual nutritional value,<br />
palatability, and grazing utilization.<br />
Distribution and Adaptation<br />
Siberian Wildrye seedhead<br />
Siberian Wildrye<br />
Elymus sibiricus (L.)<br />
Description<br />
Elymus sibiricus (Siberian Wildrye) is a tall growing, erect<br />
perennial bunchgrass, that grows from 75 - 90 centimeters<br />
(30 to 36 inches) in height. It is a cool season species native<br />
to fragmented intermountain areas. Siberian Wildrye can be<br />
easily identified by its long, lax, drooping seedhead. This grass<br />
species produces an abundance <strong>of</strong> seed, and has a conspicuous<br />
ability to grow in open, unshaded and infertile sites. Siberian<br />
Wildrye is known for its extreme winter hardiness and excellent<br />
seedling vigor. It produces approximately 127,000 seeds per<br />
pound <strong>of</strong> seed.<br />
Uses<br />
Livestock: Siberian Wildrye can be utilized as hay or as a<br />
pasture crop. It is used by cattle, horses, and sheep. The<br />
palatability <strong>of</strong> Siberian Wildrye is moderate to low for most<br />
classes <strong>of</strong> livestock.<br />
Wildlife: A large variety <strong>of</strong> wildlife utilize Siberian Wildyre<br />
for cover. Most wildlife will not typically utilize this grass for<br />
feed as <strong>of</strong>ten as domestic livestock. Siberian Wildrye has low<br />
palatability for elk, bison and various species <strong>of</strong> waterfowl.<br />
Siberian Wildrye is distributed across Europe, Asia, Russia,<br />
and parts <strong>of</strong> Canada and <strong>Alaska</strong>. It can be found growing in<br />
sandy soils, in areas receiving between 24 and 55 inches <strong>of</strong><br />
annual precipitation. Siberian Wildrye is a very drought<br />
tolerant species and will not grow well in wet areas or areas<br />
with poorly drained soils. The grass is adapted to slightly acid<br />
to neutral soils, with a pH range from 5.0 to 7.2. Siberian<br />
Wildrye will not tolerate saline soils or shaded environments.<br />
Culture<br />
An average broadcast seeding rate for Siberian Wildrye is<br />
12 lbs/acre. A rate <strong>of</strong> 6 lbs/acre should be used when drill<br />
seeding or when seeded in a mixture. Siberian Wildrye seeds<br />
should be planted at a depth <strong>of</strong> 1 /4 in. to 1 in. Seed should<br />
be planted in medium to coarse textured, well drained soil if<br />
possible. All seeding rates are determined by using Pure Live<br />
Seed (PLS) calculations, as described in Appendix B.<br />
Appropriate fertilizer ratios depend upon soil type, chemistry,<br />
and location. Soil samples should be collected and analyzed<br />
before fertilizer is applied. Little information is available<br />
regarding the effect fertilizer and irrigation may have on<br />
Siberian Wildrye yields.<br />
Management<br />
Siberian Wildrye appears to be a good forage species,<br />
although more research is needed to determine its overall<br />
value. There are several potential problems for growers<br />
dealing with Siberian Wildrye. This grass possesses a needle<br />
like appendage or awn that could potentially be harmful to<br />
livestock. Siberian Wildrye should not be grazed within the<br />
first year <strong>of</strong> its planting. Grazing could potentially destroy or<br />
diminish its life span. During its first year <strong>of</strong> growth, Siberian<br />
Wildrye does not produce a high overall yield. There has been<br />
little research into pests (such as insects, mildews, or rust) that<br />
could be harmful to Siberian Wildrye.<br />
51
Grass<br />
Cultivars and Releases<br />
A field <strong>of</strong> Siberian Wildrye in southcentral <strong>Alaska</strong>.<br />
Photo: Casey Dinkel, AK PMC<br />
• There are no commercial Siberian Wildyre cultivars or<br />
releases currently available.<br />
References<br />
Natural Resource Conservation Service (2000) USDA National <strong>Plant</strong> Data<br />
<strong>Center</strong> [online] Link: http://plants.usda.gov/java/<br />
Klebesadel, L.J. (1969) Siberian Wildrye, Agronomic Characteristics <strong>of</strong><br />
a Potentially Valuable <strong>Forage</strong> and Conservation Grass <strong>of</strong> the North. In<br />
Agronomy Journal, Vol. 61. Nov-Dec 1969. p. 855-859.<br />
I<br />
SC<br />
Klebesadel, L.J. (1993) Winterhardiness and Agronomic Performance<br />
<strong>of</strong> Wildryes Compared with Other Grasses In <strong>Alaska</strong>, and the Responses<br />
<strong>of</strong> Siberian Wildrye to Management Practices. Agricultural and Forestry<br />
Experiment Station, University <strong>of</strong> <strong>Alaska</strong>. Palmer, <strong>Alaska</strong>. 19 pp.<br />
Coarse<br />
Moderately<br />
Coarse<br />
Soil Texture *<br />
Medium<br />
Moderately<br />
Fine<br />
Fine<br />
1 2 2 1 0<br />
* Soil texture is graded on a scale <strong>of</strong> 0 to 3; higher numbers<br />
denote textures to which species is most adapted.<br />
Species not<br />
adapted to region<br />
Adapted Regions:<br />
Siberian Wildrye<br />
• Interior<br />
• Southcentral<br />
Availability<br />
Growth<br />
Form<br />
Average<br />
Height<br />
Native or<br />
Introduced<br />
Saline<br />
Tolerance<br />
Drought<br />
Tolerance<br />
Wet Soil<br />
Tolerance<br />
Competitiveness<br />
pH Range<br />
52<br />
Poor Bunch 36 in. Disputed Poor Good Poor Moderate 5.0 - 7.2
Photo: Brennan Veith Low, AK PMC<br />
SLENDER WHEATGRASS<br />
<strong>Forage</strong> Value<br />
Slender Wheatgrass is valuable forage for most classes <strong>of</strong><br />
livestock and wildlife. It is generally considered to have a good<br />
energy value and high protein content compared to other<br />
grasses. Slender Wheatgrass produces good quality hay if<br />
managed properly.<br />
Distribution and Adaptation<br />
Slender Wheatgrass is widely distributed across North<br />
America. Its range extends from <strong>Alaska</strong> to Newfoundland<br />
and south to North Carolina, Kentucky, Arkansas, Texas, and<br />
western Mexico. Slender Wheatgrass has been found growing<br />
at elevations from 4,500 to 12,000 feet. It prefers loams to<br />
sandy loams in areas receiving at least 14 inches <strong>of</strong> annual<br />
precipitation. Slender Wheatgrass is a drought tolerant<br />
species, but may still succumb to drought, since it sometimes<br />
matures later in the fall. The grass is adapted to slightly acid<br />
to slightly alkaline soils, growing in soils with a pH ranging<br />
from 5.6 to 9.0. Considerable genetic variability is present in<br />
Slender Wheatgrass populations, and some ecotypes may be<br />
rather specific to their original sites.<br />
Slender Wheatgrass seed head<br />
Slender Wheatgrass<br />
Elymus trachycaulus (L.)<br />
Description<br />
Elymus trachycaulus (Slender Wheatgrass) is an erect, tufted<br />
bunchgrass ranging in height from 60 to 70 centimeters (24<br />
to 30 inches). It is a cool season, perennial species native to<br />
the mountain and intermountain areas <strong>of</strong> the western United<br />
<strong>State</strong>s and the northern Great Plains. Slender Wheatgrass<br />
has very short rhizomes and the seedstalks and stems have<br />
characteristic reddish to purplish tinge at the base. It is seldom<br />
found in pure stands and is relatively short lived with a life<br />
expectancy <strong>of</strong> only 4-6 years. Slender Wheatgrass has about<br />
133,000 seeds per pound <strong>of</strong> seed.<br />
Uses<br />
Livestock: Slender Wheatgrass can be used for hay or pasture<br />
land. It’s highly palatable to cattle and sheep, and provides<br />
good quality animal fodder.<br />
Wildlife: Slender Wheatgrass is utilized by buffalo, elk,<br />
moose, mountain goat and dall sheep throughout <strong>Alaska</strong>. It<br />
is also used as forage and cover for some songbirds, upland<br />
game birds, small mammals, and waterfowl.<br />
Culture<br />
An average broadcast seeding rate for Slender Wheatgrass is<br />
10 lbs/acre, or 5 lbs/acre used when drill seeded or included<br />
in mixtures. Seeding depth should be 1 /4 to 3 /4 inch. Seed<br />
should be planted in fine to medium textured well drained soil<br />
if possible. All seeding rates are determined by using Pure Live<br />
Seed (PLS) calculations, as described in Appendix B.<br />
Appropriate fertilizer ratios depend upon soil type, chemistry,<br />
and location. Soil samples should be collected and analyzed<br />
before fertilizer is applied. Pastures containing Slender<br />
Wheatgrass should be irrigated when necessary and/or<br />
applicable. Irrigation in combination with fertilization should<br />
increase overall yields.<br />
Management<br />
Slender Wheatgrass is best suited as a filler seed in mixtures<br />
containing slower establishing, longer lived grass species. It<br />
performs well when grown in combination with legumes.<br />
Slender Wheatgrass is moderately tolerant to grazing<br />
pressure, and requires good management to maintain stands.<br />
It is also considered to be a decreaser species on over grazed<br />
rangelands.<br />
When choosing Slender Wheatgrass as forage in <strong>Alaska</strong>,<br />
one should highly consider planting a cultivar or release that<br />
is adapted to the climate in which the plants will become<br />
established.<br />
53
Photo: Casey Dinkel, AK PMC<br />
Grass<br />
Cultivars and Releases<br />
• Wainwright selected class germplasm;<br />
- <strong>Alaska</strong> PMC release.<br />
W I SW SC<br />
• ‘Revenue’ - Canada release.<br />
W I SW SC<br />
• ‘Primar’ - released from Oregon and Washington.<br />
References<br />
W I SW SC<br />
Wright, S.J. and P.K. Czapla (2010) <strong>Alaska</strong> Coastal Revegetation & Erosion<br />
Control Guide, <strong>State</strong> <strong>of</strong> <strong>Alaska</strong>, Division <strong>of</strong> Agriculture, <strong>Plant</strong> <strong>Materials</strong> <strong>Center</strong>,<br />
Anchorage, <strong>Alaska</strong>. 234 pp. Link: http://dnr.alaska.gov/ag/akpmc/reveg/<br />
Wright, S.J. and P. Hunt (2008) A Revegetation Guide for <strong>Alaska</strong>, <strong>State</strong> <strong>of</strong><br />
<strong>Alaska</strong>, Division <strong>of</strong> Agriculture, <strong>Plant</strong> <strong>Materials</strong> <strong>Center</strong>, Anchorage, <strong>Alaska</strong>.<br />
160 pp. Link: http://dnr.alaska.gov/ag/akpmc/pdf/Reveg<strong>Manual</strong>.pdf<br />
Natural Resource Conservation Service (2000) USDA National <strong>Plant</strong> Data<br />
<strong>Center</strong> [online] Link: http://plants.usda.gov/java/<br />
Slender Wheatgrass is an excellent drought-tolerant forage crop.<br />
Skinner, Q.D, Wright, S.J., Henszey, R. J., Henszey, J.L. and Wyman, S.K.<br />
(2012) A Field Guide to <strong>Alaska</strong> Grasses, Education Resources Publishing,<br />
Cummings Georgia. 384 pp<br />
Klebesadel, L.J. (1991) Performance <strong>of</strong> Indigenous and Introduced Slender<br />
Wheatgrass in <strong>Alaska</strong>, and Presumed Evidence <strong>of</strong> Ecotypic Evolution. UAF<br />
Agricultural and Forestry Experiment Station. Palmer, <strong>Alaska</strong>. 20 pp.<br />
Stubbendieck, J., S.L. Hatch and L.M. Landholt (2003) A Field Guide, North<br />
American Wildland <strong>Plant</strong>s. University <strong>of</strong> Nebraska, University <strong>of</strong> Nebraska<br />
press. Lincoln, Nebraska. 501 pp.<br />
Maurice, E.H., D.S. Metcalfe and R.F. Barnes (1973) <strong>Forage</strong>s, The Science <strong>of</strong><br />
Grassland Agriculture. University <strong>of</strong> Iowa <strong>State</strong>, Iowa <strong>State</strong> University Press.<br />
W<br />
I<br />
SW<br />
SC<br />
Pawnee Buttes Seed Inc. (2004) A Guide to Grasses, Pawnee Butte Seed Inc.,<br />
Greeley, Colorado. 107 pp. [online] Link: http://www.pawneebuttesseed.<br />
com/guide_to_grasses.htm<br />
Coarse<br />
Moderately<br />
Coarse<br />
Soil Texture *<br />
Medium<br />
Moderately<br />
Fine<br />
Fine<br />
0 2 3 2 0<br />
* Soil texture is graded on a scale <strong>of</strong> 0 to 3; higher numbers<br />
denote textures to which species is most adapted.<br />
Species not<br />
adapted to region<br />
Adapted Regions:<br />
Slender Wheatgrass<br />
• Western<br />
• Interior<br />
• Southwest<br />
• Southcentral<br />
Availability<br />
Growth<br />
Form<br />
Average<br />
Height<br />
Native or<br />
Introduced<br />
Saline<br />
Tolerance<br />
Drought<br />
Tolerance<br />
Wet Soil<br />
Tolerance<br />
Competitiveness<br />
pH Range<br />
54<br />
Good Bunch 24 - 30 in. Native Excellent Excellent Good Strong 5.6 - 9
SMOOTH BROME<br />
Photo: Casey Dinkel, AK PMC<br />
Smooth Brome is resistant to drought and temperature extremes.<br />
Smooth Brome<br />
Bromus inermis (L.)<br />
Description<br />
Bromus inermis (Smooth Brome) is a sod-forming perennial<br />
cool season grass that spreads by rhizomes. Culms vary from<br />
30 to 45 centimeters (12 to 18 inches) in height on average.<br />
This plant produces numerous basal and stem leaves that<br />
vary in length from 10 to 25 cm (4 to 10 inches). Frequently,<br />
Smooth Brome leaves are marked by a transverse wrinkle<br />
resembling a “W” a short distance below the leaf tip. The<br />
inflorescence develops a characteristic rich purplish-brown<br />
color when mature. Brome seed is produced in semi-compact,<br />
127 mm (5 inch) long panicles with ascending branches. The<br />
flat compressed seed is usually awnless, about 8.5 mm ( 1 /3<br />
inch) long, and smooth. Smooth Brome is the most widely used<br />
<strong>of</strong> the cultivated brome grasses. It produces approximately<br />
142,000 seeds per pound <strong>of</strong> seed.<br />
Uses<br />
Livestock: Smooth Brome is used for hay, pasture, and/or<br />
silage. Cattle, sheep and horses find this grass highly palatable<br />
during the early growth stage, as well as late in the year after<br />
fall green-up.<br />
Wildlife: Smooth Brome is used by wildlife to varying degrees,<br />
depending upon the quality <strong>of</strong> the grass and the animal<br />
species. Elk and Bison use it as winter forage. Upland game<br />
birds and waterfowl use Smooth Brome for nesting cover and<br />
rearing their brood. Rodents such as voles and shrews use it<br />
for food and cover throughout the year.<br />
<strong>Forage</strong> Value<br />
If grazed before flowering, Smooth Brome is high in protein<br />
with relatively low crude-fiber content. <strong>Forage</strong> value decreases<br />
rapidly with maturity, once seed is produced. Northern<br />
varieties <strong>of</strong> Smooth Brome produce less forage on average<br />
than southern varieties, but are just as palatable for livestock<br />
and wildlife.<br />
Distribution and Adaptation<br />
Smooth Brome is adapted to cool climates. It is resistant to<br />
drought and extremes in temperature. It is a long lived grass,<br />
living 5 to 7 years on average, but can live as long as 10 years<br />
or more. This plant is very susceptible to disease in areas <strong>of</strong><br />
high humidity. Smooth Brome grows best on well drained silt<br />
and clay loam soils with high fertility. It will also grow well<br />
on lighter textured soils where adequate moisture and fertility<br />
are maintained. Smooth Brome performs best in a slightly<br />
acid to slightly alkaline environment (pH range <strong>of</strong> 6.0 to 7.5).<br />
Stands are difficult to obtain and growth is poor on soils high<br />
in soluble salts.<br />
Smooth Brome’s range <strong>of</strong> distribution is centered within the<br />
corn belt <strong>of</strong> North America and includes portions <strong>of</strong> Canada<br />
and <strong>Alaska</strong>. Depending on variety, this grass can grow in<br />
several regions <strong>of</strong> <strong>Alaska</strong>, as far north as Fairbanks.<br />
Culture<br />
Due to slow rates <strong>of</strong> germination and establishment, Smooth<br />
Brome requires a clean, firm seedbed. An average seeding<br />
rate for broadcast seeding is 20-25 lbs/acre, 10-15 lbs/acre<br />
when drill seeding. If seeded as part <strong>of</strong> a mixture, 5-10 lbs/<br />
acre should be used. When seeding in the fall, make sure to<br />
have seed in the ground at least six weeks prior to the first<br />
expected frost. Seedings should be drilled at a depth <strong>of</strong> 1 /2 to<br />
3<br />
/4 inch. All seeding rates are determined by using Pure Live<br />
Seed (PLS) calculations, as described in Appendix B.<br />
Appropriate fertilizer ratios for Smooth Brome depend upon<br />
soil type, chemistry, and location. Soil samples should be<br />
collected and analyzed before fertilizer is applied. Pastures<br />
and hay fields should be irrigated when necessary and/or<br />
applicable. Irrigation, in combination with fertilization, should<br />
increase overall yields.<br />
Management<br />
Smooth Brome requires heavy applications <strong>of</strong> nitrogen<br />
in early spring and in fall to maintain high yields in a pure<br />
stand. Optimum forage production is obtained when brome<br />
is used in a planned cropping system and plowed out after 3<br />
to 4 years. Smooth Brome’s heavy sod makes it an excellent<br />
soil-conditioning crop, when included in cropping systems. In<br />
deep, well-drained soils it will root to 4 feet. Smooth Brome<br />
performs best in grassed waterways, field borders, and other<br />
conservation uses, where the forage can be cut and removed<br />
while in early bloom.<br />
55
Pastures should not be grazed prior to attaining a minimum<br />
height <strong>of</strong> about 10 inches at the beginning <strong>of</strong> the grazing<br />
season. Grazing pressures should be adjusted throughout the<br />
season to avoid grazing this grass below a minimum height <strong>of</strong><br />
4 inches.<br />
Grasshoppers and seed blight can be a factor during grass<br />
establishment, in semi-humid areas. Foliar diseases in humid<br />
areas have also been known to cause serious problems.<br />
Smooth Brome can be dramatically affected by seed midges,<br />
such as Stenodiplosis bromicola, in some northern areas.<br />
Photo: <strong>Alaska</strong> PMC<br />
Grass<br />
Cultivars and Releases<br />
• ‘Carlton’ - Western Canada release.<br />
• ‘Manchar’ - Washington release.<br />
I<br />
SC<br />
• ‘Polar’ - <strong>Alaska</strong> developed ‘Polar’ Brome may become<br />
commercially available in the future. Check with the<br />
<strong>Alaska</strong> <strong>Plant</strong> <strong>Materials</strong> <strong>Center</strong> for further detail.<br />
References<br />
I<br />
SC<br />
Klebesadel, L.J. (1983) <strong>Forage</strong> Crops In <strong>Alaska</strong> - Bulletin 63, University <strong>of</strong><br />
<strong>Alaska</strong>, School <strong>of</strong> Agriculture and Land Resource Management, Agricultural<br />
Experiment Station. 16 pp<br />
Klebesadel, L.J., R.L. Taylor, W.M. Laughlin, W.W. Mitchell, G.J. Michaelson<br />
and J. Purser (1983) Grain and <strong>Forage</strong> Crops for Southcentral <strong>Alaska</strong>,<br />
University <strong>of</strong> <strong>Alaska</strong>, Palmer, <strong>Alaska</strong>. 10 pp<br />
Smooth brome, Bromus inermis<br />
Klebesadel, L.J. (1992) Bromegrass in <strong>Alaska</strong>. I. Winter Survival and <strong>Forage</strong><br />
Productivity <strong>of</strong> Bromus Species, Types, and Cultivars as Related to Latitudinal<br />
Adaptation, University <strong>of</strong> <strong>Alaska</strong> Fairbanks, School <strong>of</strong> Agriculture and Land<br />
Resources Management, Bulletin 87, 13 pp<br />
Stubbendieck, J., S.L. Hatch, L.M. Landholt (2003) A Field Guide, North<br />
American Wildland <strong>Plant</strong>s. University <strong>of</strong> Nebraska, University <strong>of</strong> Nebraska<br />
press. Lincoln, Nebraska. 501 pp<br />
Maurice, E.H., D.S. Metcalfe, R.F. Barnes (1973) <strong>Forage</strong>s, The Science <strong>of</strong><br />
Grassland Agriculture. Iowa <strong>State</strong> University Press, Iowa <strong>State</strong> University.<br />
Ames, Iowa. 755 pp<br />
Natural Resource Conservation Service (2000) USDA National <strong>Plant</strong> Data<br />
<strong>Center</strong> [online] Link: http://plants.usda.gov/java/<br />
Pawnee Buttes Seed Inc. (2004) A Guide to Grasses, Pawnee Butte Seed Inc.,<br />
Greeley, Colorado. 107 pp [online] Link: http://www.pawneebuttesseed.<br />
com/guide_to_grasses.htm<br />
Soil Conservation Service (1972) A Vegetative Guide for <strong>Alaska</strong>. University<br />
<strong>of</strong> <strong>Alaska</strong>, Institute <strong>of</strong> Agricultural Sciences, Soil Conservation Service. 50 pp<br />
Skinner, Q.D. (2010) A Field Guide to Wyoming Grasses. Education Resources<br />
Publishing, Cummings Georgia. 596 pp<br />
I<br />
SC<br />
Klebesadel, L.J. (1970) Influence <strong>of</strong> <strong>Plant</strong>ing Date and Latitudinal Provenance<br />
on Winter Survival, Heading, and Seed Production <strong>of</strong> Bromegrass and<br />
Timothy in the Subarctic, University <strong>of</strong> <strong>Alaska</strong> Experiment Station In Crop<br />
Science, Vol. 10. Sept.-Oct. 1970. p 594-598.<br />
Coarse<br />
Moderately<br />
Coarse<br />
Soil Texture *<br />
Medium<br />
Moderately<br />
Fine<br />
Fine<br />
1 3 3 3 2<br />
* Soil texture is graded on a scale <strong>of</strong> 0 to 3; higher numbers<br />
denote textures to which species is most adapted.<br />
Species not<br />
adapted to region<br />
Adapted Regions:<br />
Smooth Brome<br />
• Interior<br />
• Southcentral<br />
see variety detail at left<br />
Availability<br />
Growth<br />
Form<br />
Average<br />
Height<br />
Native or<br />
Introduced<br />
Saline<br />
Tolerance<br />
Drought<br />
Tolerance<br />
Wet Soil<br />
Tolerance<br />
Competitiveness<br />
pH Range<br />
56<br />
Good Sod 12 - 18 in. Introduced Poor Good Fair Strong 6.0 - 7.5
SPIKE TRISETUM<br />
<strong>Forage</strong> Value<br />
Spike Trisetum produces excellent quality forage for all<br />
classes <strong>of</strong> livestock and large wildlife, though it does not<br />
respond well to heavy grazing pressure. It is highly palatable<br />
to browse and grazing animals, and produces large amounts<br />
<strong>of</strong> protein in comparison to other grasses. Spike Trisetum has<br />
good digestibility and is considered to be an important grass<br />
for mountainous regions.<br />
Photo: Natural Resource Conservation Service (NRCS)<br />
Spike Trisetum<br />
Trisetum spicatum (L.)<br />
Description<br />
Trisetum spicatum (Spike Trisetum) is a relatively short-lived,<br />
cool-season perennial bunch grass. It grows erect culms 50<br />
to 75 centimeters (20 to 30 inches) tall. Leaves are usually<br />
flat to folded, and 2.5 to 13 cm (1 to 5 inches) in length. The<br />
inflorescence is also 2.5 to 13 cm (1 to 5 inches) long, narrow,<br />
dense, and sometimes purplish green. Spike Trisetum seed is<br />
small, with about 2,000,000 seeds per pound <strong>of</strong> seed. Spike<br />
Trisetum has a high root/shoot ratio in comparison with other<br />
grasses.<br />
Uses<br />
Spike Trisetum seed head<br />
Livestock: Spike Trisetum is commonly used for pasture. It is<br />
considered highly palatable for all classes <strong>of</strong> livestock. When<br />
used for hay, Spike Trisetum provides nutritious forage for<br />
cattle, sheep, and horses.<br />
Wildlife: Big game animals such as bison, elk, and deer,<br />
commonly utilize Spike Trisetum throughout its growing<br />
season. This grass is highly palatable to all classes <strong>of</strong> wildlife.<br />
Distribution and Adaptation<br />
Spike Trisetum is adapted to medium textured or well drained<br />
soils, and prefers a pH range <strong>of</strong> 4.9 to 7.5. It is found growing<br />
on drier areas <strong>of</strong> mountain meadows, roadsides, clear cuts,<br />
and is distributed almost worldwide. Spike Trisetum is tolerant<br />
<strong>of</strong> prolonged periods <strong>of</strong> drought or moisture, though it will not<br />
persist under conditions <strong>of</strong> high salinity.<br />
Culture<br />
Spike Trisetum seeds should be planted from ¼ to ½ inch deep.<br />
Seeding rates depend greatly upon soil type, moisture, and<br />
location. An average seeding rate for broadcast seeding is 6 -<br />
12 lbs/acre and 4 - 6 lbs/acre when drill seeding. When seeded<br />
in a mixture, apply at a rate <strong>of</strong> 2 - 4 lbs/acre. All seeding rates<br />
are determined by using Pure Live Seed (PLS) calculations, as<br />
described in Appendix B.<br />
Appropriate fertilizer ratios depend upon soil type, chemistry,<br />
and location. Soil samples should be collected and analyzed<br />
before fertilizer is applied. Pastures and hay fields should<br />
be irrigated when necessary and/or applicable. Irrigation in<br />
combination with fertilization should increase overall yields.<br />
Management<br />
Spike Trisetum starts its growth in early spring. Like many<br />
grasses, its protein values diminish upon setting seed. Spike<br />
Trisetum does not respond well to heavy grazing pressure.<br />
Precaution should be taken not to over graze this grass. Spike<br />
Trisetum will stay green well into August or until covered by<br />
snow. It seldom occurs in dense stands, but usually cures well<br />
when cut for hay. Seed can be damaged more easily than most<br />
other grasses due to a liquid endosperm. Care should be taken<br />
when drill seeding to limit seed damage. At present, there are<br />
no known pests that are a concern for Spike Trisetum.<br />
57
Photo: Casey Dinkel, AK PMC<br />
Grass<br />
A mature stand <strong>of</strong> Spike Trisetum<br />
Cultivars and Releases<br />
• Nelchina - selected class germplasm;<br />
<strong>Alaska</strong> PMC release.<br />
References<br />
W I SW SC SE<br />
Wright, S.J. and P.K. Czapla (2010) <strong>Alaska</strong> Coastal Revegetation & Erosion<br />
Control Guide, <strong>State</strong> <strong>of</strong> <strong>Alaska</strong>, Division <strong>of</strong> Agriculture, <strong>Plant</strong> <strong>Materials</strong> <strong>Center</strong>,<br />
Anchorage, <strong>Alaska</strong>. 234 pp Link: http://dnr.alaska.gov/ag/akpmc/reveg/<br />
W<br />
I<br />
SW<br />
SC<br />
SE<br />
Natural Resource Conservation Service (2000) USDA National <strong>Plant</strong> Data<br />
<strong>Center</strong> [online] Link: http://plants.usda.gov/java/<br />
Skinner, Q.D, Wright, S.J., Henszey, R. J., Henszey, J.L. and Wyman, S.K.<br />
(2012) A Field Guide to <strong>Alaska</strong> Grasses, Education Resources Publishing,<br />
Cummings Georgia. 384 pp<br />
Stubbendieck, J., S.L. Hatch and L.M. Landholt (2003) A Field Guide, North<br />
American Wildland <strong>Plant</strong>s. University <strong>of</strong> Nebraska, University <strong>of</strong> Nebraska<br />
press. Lincoln, Nebraska. 501 pp<br />
Coarse<br />
Moderately<br />
Coarse<br />
Soil Texture *<br />
Medium<br />
Moderately<br />
Fine<br />
Fine<br />
1 2 3 2 1<br />
* Soil texture is graded on a scale <strong>of</strong> 0 to 3; higher numbers<br />
denote textures to which species is most adapted.<br />
Species not<br />
adapted to region<br />
Adapted Regions:<br />
Spike Trisetum<br />
• Western<br />
• Interior<br />
• Southwest<br />
• Southcentral<br />
• Southeast<br />
Availability<br />
Growth<br />
Form<br />
Average<br />
Height<br />
Native or<br />
Introduced<br />
Saline<br />
Tolerance<br />
Drought<br />
Tolerance<br />
Wet Soil<br />
Tolerance<br />
Competitiveness<br />
pH Range<br />
Poor Bunch 20 - 30 in. Native Poor Good Good Strong 4.9 - 7.5<br />
58
TIMOTHY<br />
Photo: Casey Dinkel, AK PMC<br />
<strong>Forage</strong> Value<br />
Timothy produces good quality hay for most classes <strong>of</strong> livestock<br />
and wildlife. It also provides ample amounts <strong>of</strong> protein within<br />
the first 25 days <strong>of</strong> its growing cycle. Once Timothy is mature,<br />
crude protein values and digestibility diminishes greatly, a fact<br />
that should be considered when producing a hay crop. After<br />
the first hay cutting, Timothy can provide good late summer<br />
and early fall pasture forage.<br />
Timothy<br />
Phleum pratense (L.)<br />
Description<br />
Timothy seed head<br />
Distribution and Adaptation<br />
Timothy is adapted to a cool, humid climate. Timothy thrives<br />
in rich moist bottomlands and on finer textured soils, such<br />
as clay loams. It does not do well on coarser soils. Timothy<br />
prefers a pH <strong>of</strong> 5.5 to 7.0. Timothy will grow for a time on soils<br />
low in fertility, but it is better adapted to high fertile soil. It is<br />
not well adapted to wet, flat land where water stands for any<br />
considerable time, although it can withstand somewhat poorlydrained<br />
soils. Under conditions <strong>of</strong> limited moisture, Timothy<br />
performs poorly; it does not tolerate drought or prolonged<br />
high temperatures. Timothy is distributed throughout the<br />
entire United <strong>State</strong>s.<br />
Culture<br />
Phleum pratense, Timothy is a relatively short-lived, coolseason<br />
perennial bunch grass that grows in stools or clumps<br />
and has a shallow, compact, and fibrous root system. It grows<br />
in erect culms 50 to 100 centimeters (20 to 40 inches) tall.<br />
Leaves vary in length from 5 to 30 cm (2 to 12 inches) and are<br />
about ( 1 /4 inch) wide, narrowing gently toward the tip. Heads<br />
spike-like and dense, from 5 to 15 cm (2 to 6 inches) in length.<br />
The seed is very small and usually remains enclosed within the<br />
glumes. Timothy produces approximately 1,230,000 seeds per<br />
pound <strong>of</strong> seed. Timothy is different from most other grasses<br />
in that 1, or occasionally 2, <strong>of</strong> the basal internodes <strong>of</strong> the stem<br />
swell into a bulb-like growth. This characteristic is <strong>of</strong>ten used<br />
to identify the plant during its early stages <strong>of</strong> growth.<br />
Uses<br />
Livestock: Timothy is used for pasture and silage, but mostly<br />
for hay. It is palatable and nutritious for cattle and sheep, and<br />
also makes excellent hay for horses. Timothy is considered<br />
good forage for cattle and horses during the spring, summer,<br />
and fall. When being grazed by sheep it is considered good<br />
forage during the summer and fair during the spring and fall.<br />
Wildlife: Big game animals such as bison, elk and deer<br />
commonly utilize Timothy throughout its growing season.<br />
Some studies have shown that Timothy makes up to 20% <strong>of</strong><br />
bison and elk diets. Small mammals, song birds, upland game<br />
birds and waterfowl will also use Timothy for nesting, brood<br />
rearing and escape cover.<br />
When planting Timothy, seeds should be planted a ½ inch<br />
deep in moist soil, and ¾ inch in dry or coarse textured soils.<br />
It is commonly planted in mixtures with legumes or small<br />
grains. Seeding rates for Timothy depend greatly upon soil<br />
type, moisture, and location. An average seeding rate for<br />
broadcasting is 4-8 lbs/acre, and 2-4 lbs/acre when drill<br />
seeding. When Timothy is seeded in a mixture, apply at a rate<br />
<strong>of</strong> 4-6 lbs/acre. All seeding rates are determined by using Pure<br />
Live Seed (PLS) calculations, as described in Appendix B.<br />
Appropriate fertilizer ratios depend upon soil type, chemistry,<br />
and location. Soil samples should be collected and analyzed<br />
before fertilizer is applied. Timothy is highly responsive to<br />
fertilizers and should be fertilized frequently and in ample<br />
quantities. Pastures and hay fields should be irrigated when<br />
necessary and/or applicable. Irrigation in combination with<br />
fertilization should increase overall yields.<br />
Management<br />
Timothy makes a first rate companion grass for alfalfa,<br />
trefoil, or clover as it is the grass that competes least with<br />
legumes. Over 31 diseases have been reported as affecting<br />
Timothy; however, most <strong>of</strong> these are <strong>of</strong> little concern and can<br />
be controlled. Timothy is susceptible to stem rust disease<br />
which can cause loss <strong>of</strong> vigor and forage quality. Rust-resistant<br />
varieties have been developed to control this disease.<br />
59
References<br />
Photo: Casey Dinkel, AK PMC<br />
Klebesadel, L.J. (1983) <strong>Forage</strong> Crops In <strong>Alaska</strong> - Bulletin 63, University <strong>of</strong><br />
<strong>Alaska</strong>, School <strong>of</strong> Agriculture and Land Resource Management, Agricultural<br />
Experiment Station. 16 pp<br />
Klebesadel, L.J., R.L. Taylor, W.M. Laughlin, W.W. Mitchell, G.J. Michaelson<br />
and J. Purser (1983) Grain and <strong>Forage</strong> Crops for Southcentral <strong>Alaska</strong>,<br />
University <strong>of</strong> <strong>Alaska</strong> , Palmer <strong>Alaska</strong>. 10 pp<br />
Natural Resource Conservation Service (2000) USDA National <strong>Plant</strong> Data<br />
<strong>Center</strong> [online] Link: http://plants.usda.gov/java/<br />
Grass<br />
Pawnee Buttes Seed Inc. (2004) A Guide to Grasses, Pawnee Butte Seed Inc.,<br />
Greeley, Colorado. 107 pp [online] Link: http://www.pawneebuttesseed.<br />
com/guide_to_grasses.htm<br />
Soil Conservation Service (1972) A Vegetative Guide for <strong>Alaska</strong>. University<br />
<strong>of</strong> <strong>Alaska</strong>, Institute <strong>of</strong> Agricultural Sciences, Soil Conservation Service. 50 pp<br />
Skinner, Q.D, Wright, S.J., Henszey, R. J., Henszey, J.L. and Wyman, S.K.<br />
(2012) A Field Guide to <strong>Alaska</strong> Grasses, Education Resources Publishing,<br />
Cummings Georgia. 384 pp<br />
Klebesadel, L.J. (1970) Influence <strong>of</strong> <strong>Plant</strong>ing Date and Latitudinal Provenance<br />
on Winter Survival, Heading, and Seed Production <strong>of</strong> Bromegrass and<br />
Timothy in the Subarctic, University <strong>of</strong> <strong>Alaska</strong> Experiment Station, In Crop<br />
Science, Vol. 10. Sept.-Oct. 1970. p 594-598.<br />
Stubbendieck, J., S.L. Hatch, L.M. Landholt (2003) A Field Guide, North<br />
American Wildland <strong>Plant</strong>s. University <strong>of</strong> Nebraska, University <strong>of</strong> Nebraska<br />
press. Lincoln, Nebraska. 501 pp<br />
Maurice, E.H., D.S. Metcalfe and R.F. Barnes (1973) <strong>Forage</strong>s, The Science <strong>of</strong><br />
Grassland Agriculture. University <strong>of</strong> Iowa <strong>State</strong>, Iowa <strong>State</strong> University Press.<br />
Ames, Iowa. 755 pp<br />
A mature stand <strong>of</strong> Timothy, Phleum pratense<br />
Cultivars and Releases<br />
• ‘Engmo’ - Norway release.<br />
W I SW SC SE<br />
• ‘Climax’ - Canada release.<br />
W I SW SC SE<br />
• ‘Champ’ - Canada release.<br />
W I SW SC SE<br />
W<br />
I<br />
SW<br />
SC<br />
SE<br />
Coarse<br />
Moderately<br />
Coarse<br />
Soil Texture *<br />
Medium<br />
Moderately<br />
Fine<br />
0 2 3 3 2<br />
Fine<br />
* Soil texture is graded on a scale <strong>of</strong> 0 to 3; higher numbers<br />
denote textures to which species is most adapted.<br />
Species not<br />
adapted to region<br />
Adapted Regions:<br />
Timothy<br />
• Western<br />
• Interior<br />
• Southwest<br />
• Southcentral<br />
• Southeast<br />
Availability<br />
Growth<br />
Form<br />
Average<br />
Height<br />
Native or<br />
Introduced<br />
Saline<br />
Tolerance<br />
Drought<br />
Tolerance<br />
Wet Soil<br />
Tolerance<br />
Competitiveness<br />
pH Range<br />
60<br />
Good Bunch 30 in. Introduced Poor Poor Good Moderate 5.5 - 7.0
TUFTED HAIRGRASS<br />
Photo: Brennan Veith Low, AK PMC<br />
<strong>Forage</strong> Value<br />
Tufted Hairgrass produces good quality hay for most classes<br />
<strong>of</strong> livestock and wildlife. It also provides ample amounts <strong>of</strong><br />
protein depending on its growing stage. Tufted Hairgrass can<br />
provide good summer pasture forage for livestock. Although<br />
forage value is usually moderate to high, Tufted Hairgrass<br />
consist <strong>of</strong> only 1-3% <strong>of</strong> wild animal diets.<br />
Distribution and Adaptation<br />
Populations <strong>of</strong> Tufted Hairgrass occupy sunny to partially<br />
shaded environments that are moderately moist to seasonally<br />
flooded. The species grows in a wide variety <strong>of</strong> soils; fine to<br />
coarse, mesic to hydric soil types. Tufted Hairgrass is adapted<br />
to a pH range from 4.8 to 7.5. Some populations have extreme<br />
tolerance to heavy metals and high soil acidity. The salinity<br />
tolerance <strong>of</strong> Tufted Hairgrass is generally low, but plants<br />
growing in coastal estuaries may be slightly more salt tolerant.<br />
Tufted Hairgrass is well suited for <strong>Alaska</strong>n environments.<br />
Tufted Hairgrass<br />
Deschampsia cespitosa (L.)<br />
Description<br />
Deschampsia cespitosa (Tufted Hairgrass) is a highly variable,<br />
perennial cool season grass species that grows from 51 to 61<br />
centimeters (20 - 24 inches) tall. Stems are erect, and the<br />
leaves are between 1.5 and 4 mm (.06 - .16 inches) wide, flat or<br />
rolled. The leaves are mostly basal in a dense tuft. Tufted Hairgrass’s<br />
inflorescence is upright to nodding, loosely branched,<br />
open and 10 to 25 cm (4 to 10 inches) long. There are two<br />
florets (flowers) per spikelet. Flowering occurs from May to<br />
September. Tufted Hairgrass seeds mature from late June to<br />
late September, depending on location. Tufted hairgrass produces<br />
approximately 1,360,000 seeds per pound <strong>of</strong> seed.<br />
Uses<br />
Livestock: Tufted Hairgrass can be utilized as hay or as<br />
a pasture crop. It is used by cattle, horses, and sheep. The<br />
palatability <strong>of</strong> Tufted Hairgrass is high to moderate for most<br />
livestock.<br />
Wildlife: A large variety <strong>of</strong> wildlife utilizes Tufted Hairgrass<br />
as forage and/or cover. However, most wildlife will not utilize<br />
Tufted Hairgrass as <strong>of</strong>ten as domestic livestock. The species<br />
has moderate to low palatability for elk, bison, bear and<br />
various species <strong>of</strong> waterfowl.<br />
Tufted Hairgrass crowns typically survive all but the most<br />
severe (hottest) fires. One <strong>of</strong> the most widely distributed<br />
grasses on earth, Tufted Hairgrass is found in arctic and<br />
temperate regions. It occurs from sea level to elevations <strong>of</strong> up<br />
to 14,000 ft. Tufted Hairgrass habitat includes coastal terraces,<br />
upper tidal marshes, seasonally wet prairies, moist subalpine<br />
mountain meadows, open forests, and alpine areas above<br />
timberline.<br />
Culture<br />
When planting Tufted Hairgrass, seed should be planted<br />
¼ to ½ inch deep. Seeding rates depend greatly upon soil<br />
type, moisture, and location. An average seeding rate for<br />
broadcasting is 12 lbs/acre and 6 lbs/acre when drill seeding.<br />
All seeding rates are determined by using Pure Live Seed (PLS)<br />
calculations, as described in Appendix B.<br />
Appropriate fertilizer ratios depend upon soil type, chemistry,<br />
and location. Soil samples should be collected and analyzed<br />
before fertilizer is applied.<br />
Management<br />
Tufted Hairgrass is adapted to northern regions and is well<br />
suited for <strong>Alaska</strong>n environments. One should be aware <strong>of</strong><br />
Tufted hairgrass’s aggressive growth characteristics; it tends<br />
to compete with other grass species. A number <strong>of</strong> diseases<br />
are associated with Tufted Hairgrass, including ergot, stripe<br />
smut, blind seed and other turf diseases. Hairgrass is also<br />
vulnerable to several rusts and leaf spots. Insect pests such as<br />
aphids, billbugs, and leafhoppers can threaten stands <strong>of</strong> Tufted<br />
Hairgrass, and should be monitored.<br />
61
Grass<br />
Photo: Casey Dinkel, AK PMC<br />
Tufted Hairgrass, Deschampsia cespitosa<br />
Stubbendieck, J., S.L. Hatch, L.M. Landholt (2003) A Field Guide, North<br />
• ‘Nortran’ - University <strong>of</strong> <strong>Alaska</strong> Fairbanks release. American Wildland <strong>Plant</strong>s, University <strong>of</strong> Nebraska, University <strong>of</strong> Nebraska<br />
press. Lincoln, Nebraska. 501 pp<br />
Cultivars and Releases<br />
References<br />
W I SW SC SE<br />
Wright, S.J. and P.K. Czapla (2010) <strong>Alaska</strong> Coastal Revegetation & Erosion<br />
Control Guide, <strong>State</strong> <strong>of</strong> <strong>Alaska</strong>, Division <strong>of</strong> Agriculture, <strong>Plant</strong> <strong>Materials</strong> <strong>Center</strong>,<br />
Anchorage, <strong>Alaska</strong>. 234 pp Link: http://dnr.alaska.gov/ag/akpmc/reveg/<br />
Wright, S.J. and P. Hunt (2008) A Revegetation Guide for <strong>Alaska</strong>, <strong>State</strong> <strong>of</strong><br />
<strong>Alaska</strong>, Division <strong>of</strong> Agriculture, <strong>Plant</strong> <strong>Materials</strong> <strong>Center</strong>, Anchorage, <strong>Alaska</strong>.<br />
160 pp Link: http://dnr.alaska.gov/ag/akpmc/pdf/Reveg<strong>Manual</strong>.pdf<br />
Klebesadel, L.J. (1983) <strong>Forage</strong> Crops In <strong>Alaska</strong> - Bulletin 63, University <strong>of</strong><br />
<strong>Alaska</strong>, School <strong>of</strong> Agriculture and Land Resource Management, Agricultural<br />
Experiment Station. 16 pp<br />
Natural Resource Conservation Service (2000) USDA National <strong>Plant</strong> Data<br />
<strong>Center</strong> [online] Link: http://plants.usda.gov/java/<br />
W<br />
I<br />
SW<br />
SC<br />
SE<br />
Pawnee Buttes Seed Inc. (2004) A Guide to Grasses, Pawnee Butte Seed Inc.,<br />
Greeley, Colorado. 107 pp [online] Link: http://www.pawneebuttesseed.<br />
com/guide_to_grasses.htm<br />
Coarse<br />
Moderately<br />
Coarse<br />
Soil Texture *<br />
Medium<br />
Moderately<br />
Fine<br />
0 1 3 3 1<br />
Fine<br />
* Soil texture is graded on a scale <strong>of</strong> 0 to 3; higher numbers<br />
denote textures to which species is most adapted.<br />
Species not<br />
adapted to region<br />
Adapted Regions:<br />
Tufted Hairgrass<br />
• Western<br />
• Interior<br />
• Southwest<br />
• Southcentral<br />
• Southeast<br />
Availability<br />
Growth<br />
Form<br />
Average<br />
Height<br />
Native or<br />
Introduced<br />
Saline<br />
Tolerance<br />
Drought<br />
Tolerance<br />
Wet Soil<br />
Tolerance<br />
Competitiveness<br />
pH Range<br />
62<br />
Good Bunch 20 - 24 in. Native Poor Good Good Strong 4.8 - 7.5
Cereal Grains<br />
Photo: Brennan Veith Low,AK PMC<br />
Barley, Hordeum vulgare<br />
Barley, Hordeum vulgare<br />
Common Oat, Avena sativa
BARLEY (Cereal)<br />
Wildlife: Barley makes excellent fodder for large ungulate<br />
wildlife, such as moose, elk and bison. It also provides feed<br />
and cover for upland game birds, small mammals, waterfowl<br />
and various song birds.<br />
<strong>Forage</strong> Value<br />
Barley is considered highly palatable and excellent forage for<br />
most classes <strong>of</strong> livestock and wildlife. On average this small<br />
grain produces 12% protein when grown in monoculture. Total<br />
forage protein levels should increase if Barley is intercropped<br />
with Field Pea. Nutritional levels will vary depending on<br />
climate, location, and other agronomic inputs such as<br />
fertilizers, irrigation, and harvest time.<br />
Distribution and Adaptation<br />
Barley seedhead<br />
Barley<br />
Hordeum vulgare (L.)<br />
Description<br />
Photo: <strong>Alaska</strong> PMC<br />
Hordeum vulgare (Barley) is an erect annual bunch grass that<br />
can reach a height <strong>of</strong> 90 centimeters (36 inches) depending<br />
on the variety. This small grain can be intercropped with<br />
legumes, such as Field Pea, to increase forage nutrients and<br />
palatability. Properly managed, legumes provide needed<br />
nitrogen for grasses and protein for livestock. Stems <strong>of</strong> Barley<br />
are hollow, smooth, and glabrous (shiny). Some varieties<br />
are susceptible to lodging. Barley leaves are typically 13 - 19<br />
mm (½ to ¾ <strong>of</strong> an inch) wide and roughly 30 cm (12 inches)<br />
in length. Barley spikelet’s exhibit short or long, narrow, and<br />
scabrous (rough) awns that can be problematic when fed to<br />
livestock. It produces a large spindle shaped seed with high<br />
seedling vigor. Barley plants produce roughly 13,000 seeds per<br />
pound <strong>of</strong> seed.<br />
Uses<br />
Livestock: Barley is commonly produced for grain fodder, but<br />
is sometimes fed directly as “green cut” when intercropped<br />
with a legume such as peas. This small cereal grain produces<br />
excellent forage and is highly palatable to all classes <strong>of</strong> livestock.<br />
In addition, Barley produces excellent straw, generally used by<br />
dog mushers for bedding.<br />
Barley can be found growing throughout much <strong>of</strong> the world<br />
including <strong>Alaska</strong>, Canada, and the contiguous United <strong>State</strong>s. It<br />
is adapted to medium textured soils and prefers a pH ranging<br />
from 5.3 to 8.5. Barley is moderately tolerant <strong>of</strong> droughty<br />
and/or wet conditions but does not persist well in shady<br />
environments. It is highly tolerant <strong>of</strong> saline soil conditions.<br />
Culture<br />
Barley grows well in cool moist climates and should be planted<br />
½ to 1½ inches deep. A firm seedbed is essential in providing<br />
good seed to soil contact. This will provide a more reliable<br />
water supply and prevent large air pockets in the soil that are<br />
less than ideal for seedlings to establish.<br />
Barley is typically drill seeded at a rate <strong>of</strong> 70 to 100 lbs/acre<br />
depending upon soil type, moisture, and location. When<br />
seeded with a legume, seeding rates should be reduced<br />
by about half and growth cycles must be synchronized.<br />
Appropriate fertilizer ratios depend upon soil type, chemistry,<br />
and location. Soil samples should be collected and analyzed<br />
before seeding. Irrigation in combination with fertilization<br />
should increase field productivity.<br />
Management<br />
Barley is an excellent grain and forage crop if properly<br />
managed. Barley is well adapted to <strong>Alaska</strong>’s long day length<br />
and short growing season. Several barley cultivars have been<br />
specifically developed to survive <strong>Alaska</strong>’s harsh climate, while<br />
producing higher nutritional grain and forage values. The<br />
cultivar ‘Weal’ is an awnless Barley that was developed as a<br />
dual purpose grain and/or forage.<br />
65
Barley requires adequate moisture and responds well to<br />
nitrogen fertilizer. When planting Barley with legume species<br />
nitrogen should not be over applied due to the adverse affects<br />
it can have on nitrogen fixing plants. Lodging can also be<br />
problematic with some Barley cultivars; one should conduct<br />
ample research about their selected cultivar before planting.<br />
Currently, producers are evaluating the costs and benefits <strong>of</strong><br />
irrigation on the production <strong>of</strong> Barley and other cereal grains<br />
throughout <strong>Alaska</strong>.<br />
Barley is susceptible to powdery mildew (Blumeria graminis),<br />
leaf scald (Rhynchosporium secalis), and barley rust, (Puccinia<br />
hordei), covered smut (Ustilago hordei), loose smut (Ustilago<br />
nuda) and ergot (Claviceps purpurea). To date, these Barley<br />
diseases have not been found in <strong>Alaska</strong>. Therefore, cultivars<br />
developed for <strong>Alaska</strong> do not have a strong resistance to<br />
disease. Before planting, many farmers treat seed to prevent<br />
ergot and smut. Managers should also rotate crops and select<br />
disease free seed when applicable.<br />
References<br />
Natural Resource Conservation Service (2000) USDA National <strong>Plant</strong> Data<br />
<strong>Center</strong> [online] Link: http://plants.usda.gov/java/<br />
Skinner, Q.D, Wright, S.J., Henszey, R. J., Henszey, J.L. and Wyman, S.K.<br />
(2012) A Field Guide to <strong>Alaska</strong> Grasses, Education Resources Publishing,<br />
Cummings Georgia. 384 pp<br />
Hulten, E. (1968) Flora <strong>of</strong> <strong>Alaska</strong> and Neighboring Territories. Stanford<br />
University Press. Stanford California. 1008 pp<br />
Quarberg, D.M, T.R, Jahns, J.I, Chumley (2009) <strong>Alaska</strong> Cereal Grains Crop<br />
Pr<strong>of</strong>ile, University <strong>of</strong> <strong>Alaska</strong> Fairbanks Extension with Western Integrated<br />
Pest Management center. Revised 2009, 7 pp<br />
Cultivars and Releases<br />
Photo: Powell Gardens, Kansas City’s Botanical Garden ( powellgardens.org)<br />
Barley, Hordeum vulgare<br />
Grain<br />
• ‘Otal’ - University <strong>of</strong> <strong>Alaska</strong> Fairbanks release.<br />
• ‘Datal’ - University <strong>of</strong> <strong>Alaska</strong> Fairbanks release.<br />
I<br />
• ‘Albright’ - Canada release.<br />
I<br />
SC<br />
SC<br />
• ‘Thual’ (hulless) - Univ. <strong>of</strong> <strong>Alaska</strong> Fairbanks release.<br />
• ‘Weal’ (awnless) - Univ. <strong>of</strong> <strong>Alaska</strong> Fairbanks release.<br />
I<br />
SC<br />
Coarse<br />
Moderately<br />
Coarse<br />
Soil Texture *<br />
Medium<br />
Moderately<br />
Fine<br />
0 2 3 2 1<br />
Fine<br />
* Soil texture is graded on a scale <strong>of</strong> 0 to 3; higher numbers<br />
denote textures to which species is most adapted.<br />
Species not<br />
adapted to region<br />
Adapted Regions:<br />
Barley<br />
• Interior<br />
• Southcentral<br />
see variety detail at left<br />
Availability<br />
Growth<br />
Form<br />
Average<br />
Height<br />
Native or<br />
Introduced<br />
Saline<br />
Tolerance<br />
Drought<br />
Tolerance<br />
Wet Soil<br />
Tolerance<br />
Competitiveness<br />
pH Range<br />
66<br />
Good Bunch 24 in. Introduced Good Good Good Moderate 5.3 - 8.5
Photo: Henrik Reinholdson (Wikimedia.org)<br />
COMMON OAT (Cereal)<br />
Uses<br />
Livestock: Oats are commonly used as a hay and silage<br />
crop, but can also be used for pasture. This small cereal grain<br />
makes excellent forage and is highly palatable to all classes <strong>of</strong><br />
livestock. Early growth oat plants can be fed as “green cut”<br />
forage for livestock. In addition, oat straw makes excellent<br />
roughage.<br />
Wildlife: Oats have excellent forage value for a large variety<br />
<strong>of</strong> wildlife such as bears, elk, bison and moose. They are also<br />
used for food and cover by upland game birds, waterfowl,<br />
small mammals and various song birds.<br />
<strong>Forage</strong> Value<br />
Oats are highly palatable and excellent forage to all classes<br />
<strong>of</strong> livestock and wildlife. The species produces moderate/<br />
high protein and carbohydrate levels. Oats can be fed as hay,<br />
silage, green cut, grain, and/or eaten directly on the pasture.<br />
Nutritional levels will vary depending upon the selected<br />
form that oats are fed as well as how other agronomic inputs<br />
(fertilizer, irrigation, harvest time) are managed and applied.<br />
Oat hay generally contains 10 to 15 % protein and is typically<br />
intercropped with a legume such as peas for added nutrition.<br />
Common Oat, Avena sativa<br />
Common Oat<br />
Avena sativa (L.)<br />
Description<br />
Avena sativa, Common Oat is an erect growing annual bunch<br />
grass that produces a fibrous root system. This small grain<br />
can attain heights greater than 60 centimeters (24 inches),<br />
depending on variety. Oats are generally intercropped with<br />
various legumes such as clovers and/or field peas to increase<br />
forage nutrient levels. This also allows some legumes to use<br />
their tendrils to climb the stalks <strong>of</strong> standing grass. Leaves are<br />
non-auriculate and medium to dark green in color. Avena<br />
sativa produces a large, lance shaped seed with high seedling<br />
vigor. Oat plants typically produce 20,000 seeds per pound <strong>of</strong><br />
seed, depending upon the variety.<br />
Distribution and Adaptation<br />
Oats can be found growing throughout much <strong>of</strong> the world<br />
including <strong>Alaska</strong>, Canada, and the contiguous United <strong>State</strong>s.<br />
It is adapted to fine to coarse textured soils, and prefers a<br />
soil pH between 5.3 - 8.5. Oats are moderately tolerant <strong>of</strong><br />
saline soils and droughty conditions. However, this small grain<br />
prefers adequate moisture and will not tolerate shady growing<br />
environments.<br />
Culture<br />
Oats are best adapted to cool moist climates and should be<br />
planted 1½ to 2 inches deep. A firm seed bed allowing good<br />
seed to soil contact is essential. Soil samples should be collected<br />
and analyzed before seeding. Oats are generally drill seeded at<br />
a rate <strong>of</strong> 50 to 90 lbs/acre. Seeded with a legume, seeding rates<br />
should be reduced by about half, and growth cycles should be<br />
synchronized. Appropriate fertilizer ratios depend upon soil<br />
type, chemistry, and location. Irrigation in combination with<br />
fertilization should increase field productivity.<br />
67
Management<br />
Oats make an excellent forage crop when properly managed.<br />
This small grain is well adapted to <strong>Alaska</strong>’s long days and short<br />
growing season in the summer. Oats are better adapted to<br />
lower pH soils than Barley or Wheat. Oat will complement<br />
various legumes when intercropped, and the species makes<br />
a high protein and carbohydrate fodder. When planting oats<br />
with a legume species, nitrogen should not be over applied<br />
due to the adverse affects it can have on nitrogen fixing plants.<br />
Common Oat (Avena sativa L.) is the species most used in<br />
in <strong>Alaska</strong>, although other species such as Black Oat (Avena<br />
strigosa L.), Red Oat (Avena byzantina C. Koch), and Hulless<br />
Oat (Avena nuda L.) are also successfully grown throughout<br />
the state. Oat straw does not contain long awns, making it<br />
more desirable than barley straw for use as animal bedding.<br />
Some oat varieties have difficulty with lodging - conduct<br />
research prior to planting.<br />
Oat diseases have not been a significant problem in<br />
<strong>Alaska</strong>. Fungi such as scald (Rhynchospoium secalis), stripe<br />
(Pyrenophora graminea), net blotch (Pyrenophora teres), spot<br />
blotch (Cochliobolus sativus) and smuts (Ustilago spp.) have<br />
been known to occur. To help prevent disease outbreaks,<br />
managers should rotate crops in the field periodically and be<br />
prudent about selecting disease free seed.<br />
Cultivars and Releases<br />
• ‘Toral’ - University <strong>of</strong> <strong>Alaska</strong> release.<br />
Common Oat, Avena sativa<br />
Quarberg, D.M, T.R, Jahns, J.I, Chumley (2009) <strong>Alaska</strong> Cereal Grains Crop<br />
Pr<strong>of</strong>ile, University <strong>of</strong> <strong>Alaska</strong> Fairbanks Extension with Western Integrated<br />
Pest Management center. Revised 2009, 7 pp<br />
Photo: H. Zell (Wikimedia.org)<br />
Grain<br />
• ‘Nip’ - Sweden release; Univ. <strong>of</strong> AK Fairbanks release.<br />
• ‘Ceal’ - University <strong>of</strong> <strong>Alaska</strong> release.<br />
References<br />
I<br />
SC<br />
Natural Resource Conservation Service (2000) USDA National <strong>Plant</strong> Data<br />
<strong>Center</strong> [online] Link: http://plants.usda.gov/java/<br />
I<br />
SC<br />
Hulten, E. (1968) Flora <strong>of</strong> <strong>Alaska</strong> and Neighboring Territories. Stanford<br />
University Press. Stanford California. 1008 pp<br />
Klebesadel, L.J. (1966) <strong>Plant</strong>ing <strong>of</strong> Oats &Peas: some yeild, quality, and cost<br />
considerations. University <strong>of</strong> <strong>Alaska</strong> Experiment Station. Research report No.<br />
4 November 1966. 7 pp<br />
Coarse<br />
Moderately<br />
Coarse<br />
Soil Texture *<br />
Medium<br />
Moderately<br />
Fine<br />
Fine<br />
0 2 3 2 1<br />
* Soil texture is graded on a scale <strong>of</strong> 0 to 3; higher numbers<br />
denote textures to which species is most adapted.<br />
Species not<br />
adapted to region<br />
Adapted Regions:<br />
Common Oat<br />
• Interior<br />
• Southcentral<br />
see variety detail at left<br />
Availability<br />
Growth<br />
Form<br />
Average<br />
Height<br />
Native or<br />
Introduced<br />
Saline<br />
Tolerance<br />
Drought<br />
Tolerance<br />
Wet Soil<br />
Tolerance<br />
Competitiveness<br />
pH Range<br />
68<br />
Good Bunch 24 in. Introduced Fair Fair Good Moderate 5.3 - 8.5
Legumes<br />
Photo: User BerndH (Wikimedia.org)<br />
Alsike Clover, Trifolium hybridum<br />
Alfalfa, Medicago sativa<br />
Alsike Clover, Trifolium hybridum<br />
Field Pea, Pisum sativum<br />
Red Clover, Trifolium pratense<br />
White Clover, Trifolium repens<br />
70
ALFALFA<br />
<strong>Forage</strong> Value<br />
Alfalfa produces large amounts <strong>of</strong> protein and is excellent<br />
quality forage for all classes <strong>of</strong> livestock and wildlife. This<br />
legume has the highest feed value <strong>of</strong> all commonly grown hay<br />
crops. Alfalfa is one <strong>of</strong> the most important forage plants in<br />
production agriculture; sometimes called the “Queen <strong>of</strong> the<br />
<strong>Forage</strong>s”. It is high in mineral content and possesses excellent<br />
nutritional value, containing at least 10 different vitamins.<br />
Distribution and Adaptation<br />
Photo: Sten Porse (Wikimedia.org)<br />
Alfalfa<br />
Medicago sativa (L.)<br />
Description<br />
A mature stand <strong>of</strong> Alfalfa<br />
Medicago sativa, Alfalfa is a long lived perennial legume. It<br />
grows erect culms, 76 - 91 centimeters (30 to 36 inches) in<br />
height, branching from a single base. Leaves alternate on the<br />
stem and are pinnately trifoliolate, while individual leaflets are<br />
obovate (ovalish) or lancolate (lance shaped). Alfalfa produces<br />
numerous flowers that are purplish to yellow and borne in loose<br />
racemes or clusters. Alfalfa grows a series <strong>of</strong> lateral roots, with<br />
a distinct tap root that may penetrate 6 to 9 meters (20 to 30<br />
feet) below soil surface. This legume produces a small kidney<br />
shaped seed. Alfalfa produces 190,000 to 220,000 seeds per<br />
pound <strong>of</strong> seed, depending upon variety. Seedling vigor can be<br />
low to moderate, also depending upon the selected variety.<br />
Alfalfa is adapted to a variety <strong>of</strong> climatic and soil conditions,<br />
and can be found growing throughout the United <strong>State</strong>s<br />
and parts <strong>of</strong> Canada. Varieties such as ‘Denali’ have been<br />
hybridized to better withstand extreme <strong>Alaska</strong>n climates.<br />
Generally, Alfalfa prefers deep well drained medium textured<br />
soils, with a pH <strong>of</strong> 6 to 8.5. It is highly drought tolerant and<br />
can withstand saline soils. Alfalfa will not tolerate sites with<br />
frequent overflow or high water tables.<br />
Culture<br />
Alfalfa should be planted no deeper than a ¼ inch on fine<br />
textured soils and ½ inch deep on coarse soils. It should be drill<br />
seeded on a firm seed bed. Cultipacking the soil before and<br />
after planting Alfalfa is normally recommended. Seeding rates<br />
depend greatly upon soil type, moisture, and location. Note<br />
that Alfalfa can have trouble over-wintering and competing<br />
with perennial grasses.<br />
An average seeding rate when broadcasting Alfalfa is 10 lbs/<br />
acre and 5 lbs/acre when drill seeding. All seeding rates are<br />
determined by using Pure Live Seed (PLS) calculations, as<br />
described in Appendix B. Appropriate fertilizer ratios depend<br />
upon soil type, chemistry and location. Research in <strong>Alaska</strong> has<br />
shown that the application <strong>of</strong> fertilizer produces no significant<br />
yield change. If applying fertilizer, collect and analyze soil<br />
samples first. Pastures and hay fields should be irrigated when<br />
necessary and/or applicable.<br />
Uses<br />
Livestock: Alfalfa is typically used for haying, silage, and<br />
pastures land. However, it can also be fed as haylage, wafers,<br />
pellets or dried meal. It is highly palatable to all classes <strong>of</strong><br />
livestock, but caution is advised when feeding Alfalfa due to its<br />
high bloat hazard.<br />
Wildlife: Alfalfa is highly palatable to a variety <strong>of</strong> large wildlife,<br />
such as deer, elk and bison. It is utilized as food and cover by<br />
small mammals, waterfowl and upland game birds. Canada<br />
geese, sandhill cranes, rough grouse and mallard ducks can be<br />
found utilizing Alfalfa.<br />
Management<br />
Alfalfa makes an excellent pasture, hay or silage forage.<br />
Although this crop is usually harvested 2 years after planting,<br />
one should be aware that most varieties will not overwinter<br />
throughout <strong>Alaska</strong>. This can be attributed to several<br />
environmental factors such as acid soils, nutrient deprived<br />
soils, cold stress and damage to the plants root system. There<br />
are several varieties <strong>of</strong> Alfalfa that have been developed or<br />
hybridized to combat these factors.<br />
Alfalfa will tolerate moderate pasture grazing, but stands will<br />
weaken if over grazed or grazed too <strong>of</strong>ten. When applicable,<br />
Alfalfa can be grown with a perennial grass species, such as<br />
71
Photo: Wikimedia.org<br />
Alfalfa, Medicago sativa<br />
Legume<br />
Smooth Brome (Bromus inermis). This can greatly reduce the<br />
danger <strong>of</strong> bloating in livestock when pasture grazing. Alfalfa<br />
is susceptible to many agricultural pests, including spotted or<br />
pea aphid, alfalfa weevil, stem nematode, bacterial wilt, snout<br />
beetle and several leaf spots.<br />
Stubbendieck, J., S.L. Hatch, L.M. Landholt, (2003) A Field Guide, North<br />
American Wildland <strong>Plant</strong>s, University <strong>of</strong> Nebraska, University <strong>of</strong> Nebraska<br />
press. Lincolin, Nebraska. 501 pp<br />
Klebesadel, L.J., and Taylor, R.L, (1973) Research Progress With Alfalfa in<br />
<strong>Alaska</strong>. In Agroborealis, Vol 5, # 1, July, 1973, pp 18-20<br />
Cultivars and Releases<br />
• Denali Alfalfa was developed by UAF, but is not<br />
commercially available as <strong>of</strong> mid 2012. Check with the<br />
<strong>Alaska</strong> <strong>Plant</strong> <strong>Materials</strong> <strong>Center</strong> for further information.<br />
References<br />
I<br />
SC<br />
Natural Resource Conservation Service (NRCS) (2000) USDA National <strong>Plant</strong><br />
Data <strong>Center</strong> [online] Link: http://plants.usda.gov/java/<br />
Coarse<br />
Moderately<br />
Coarse<br />
Soil Texture *<br />
Medium<br />
Moderately<br />
Fine<br />
Fine<br />
1 2 3 2 1<br />
* Soil texture is graded on a scale <strong>of</strong> 0 to 3; higher numbers<br />
denote textures to which species is most adapted.<br />
Species not<br />
adapted to region<br />
Adapted Regions:<br />
Alfalfa<br />
• Interior<br />
• Southcentral<br />
Availability<br />
Growth<br />
Form<br />
Average<br />
Height<br />
Native or<br />
Introduced<br />
Saline<br />
Tolerance<br />
Drought<br />
Tolerance<br />
Wet Soil<br />
Tolerance<br />
Competitiveness<br />
pH Range<br />
72<br />
Poor<br />
Upright<br />
crown<br />
30 - 36 in. Introduced Excellent Poor Excellent Strong 6 - 8.5
ALSIKE CLOVER<br />
Photo: User Aiwok (Wikimedia.org)<br />
Alsike Clover, Trifolium hybridum<br />
Alsike Clover<br />
Trifolium hybridum (L.)<br />
Description<br />
Trifolium hybridum, Alsike Clover is a short lived perennial<br />
and/or biennial legume that can reach 45 to 60 centimeters<br />
(18 to 24 inches) tall. It grows decumbent to erect vertically<br />
ridged culms. Leaves are palmately trifoliate with long<br />
petioles on the lower leaves and smaller or reduced petioles<br />
on the upper leaves. Individual leaflets are obovate (ovalish)<br />
or elliptic (narrow oval) with narrow tipped stipules. Alsike<br />
produces numerous flowers that are pink, red, and/or white<br />
and borne in leaf axils at the end <strong>of</strong> stems.<br />
Alsike is similar to several other introduced Trifolium<br />
species that occur throughout <strong>Alaska</strong>, such as Golden Clover<br />
(Trifolium aureum), Lupine Clover (T. lupinaster), Red Clover<br />
(T. pratense), White Clover (T. repens), and Field Clover (T.<br />
campestre). This legume produces a small round shaped seed,<br />
and most varieties produce roughly 650,000 seeds per pound<br />
<strong>of</strong> seed. Seedling vigor is low to moderate, depending upon<br />
the selected variety.<br />
Uses<br />
Livestock: Alsike is used for hay and pasture grazing. It is<br />
highly palatable to all classes <strong>of</strong> livestock. Caution should be<br />
taken when feeding Alsike to horses, as it can be toxic under<br />
some conditions. Also be cautious when feeding Alsike in large<br />
quantities, due to its high bloat hazard.<br />
Wildlife: Alsike is highly palatable to a variety <strong>of</strong> large wildlife,<br />
such as deer, elk and bison. It is utilized as food and cover<br />
by small mammals, waterfowl and upland game birds. Canada<br />
geese, sandhill cranes, rough grouse and mallard ducks utilize<br />
Alsike Clover.<br />
<strong>Forage</strong> Value<br />
Alsike is capable <strong>of</strong> producing large amounts <strong>of</strong> protein<br />
and is excellent quality forage for most classes <strong>of</strong> livestock<br />
and wildlife. Although it is generally out-produced by other<br />
legumes, it is highly palatable and produces a high relative feed<br />
value (RFV). It provides adequate mineral and vitamin content<br />
and is commonly grown with other grass species, including<br />
Timothy (Phleum pratense). As with most legumes, caution<br />
should be taken when feeding alsike due to the possibility <strong>of</strong><br />
bloat.<br />
Distribution and Adaptation<br />
Alsike is adapted to a variety <strong>of</strong> climatic and soil conditions. It<br />
is found growing throughout the entire United <strong>State</strong>s and parts<br />
<strong>of</strong> Canada. Alsike can tolerate fine to medium textured soils<br />
with a pH ranging from 5.6 to 7.5. Although it can persist in<br />
wetter and more acidic soils better than other clover species,<br />
Alsike will not tolerate shady, droughty or saline environments.<br />
Culture<br />
Alsike should be planted ¼ to ½ inches deep in a firm seed bed,<br />
preferably in silty loams and/or finer textured soils. Seeding<br />
rates depend greatly upon soil type, moisture, and location.<br />
An average seeding rate when broadcast seeding Alsike is 6<br />
lbs/acre and 2-4 lbs/acre when drill seeding. Seed should be<br />
inoculated prior to planting with appropriate rhizobium to<br />
assist plant establishment. Seeding rates are determined using<br />
Pure Live Seed (PLS) calculations, as described in Appendix B.<br />
Appropriate fertilizer ratios depend upon soil type, chemistry,<br />
and location. Soil samples should be collected and analyzed<br />
before field seeding. High rates <strong>of</strong> nitrogen application can<br />
damage or destroy stands <strong>of</strong> Alsike, and caution should be<br />
taken when applying fertilizer. Pastures and hay fields should<br />
be irrigated when necessary and/or applicable.<br />
Management<br />
Alsike makes an excellent pasture or hay forage. This legume<br />
is adapted to acidic, poorly drained, and/or moderate to low<br />
nutrient soils. Alsike can be difficult to control for the first<br />
several years <strong>of</strong> production, due to its aggressive nature and<br />
tendency to compete with other plants. It is highly recommend<br />
that Alsike be seeded in combination with a grass species<br />
to keep it from dominating a forage stand. Typically, Alsike<br />
Clover is seeded with a grass species such as Timothy (Phleum<br />
pratense) to reduce the risk <strong>of</strong> bloating and toxic affects when<br />
feeding to horses. Seeding with a grass species will also help<br />
Alsike stand upright making for an easier harvest.<br />
73
Photo: User BerndH (Wikimedia.org)<br />
This legume will readily move into disturbed areas, and one<br />
should be mindful when selecting this species as a forage<br />
choice. Alsike requires a minimum <strong>of</strong> 110 frost-free days for<br />
successful reproduction and will continue to bloom throughout<br />
the entire growing season. Alsike responds well to irrigation,<br />
moderate grazing pressure, and commercial fertilizers. Little<br />
research has been conducted concerning potential pests that<br />
may affect Alsike in <strong>Alaska</strong>.<br />
A mature stand <strong>of</strong> Alsike Clover<br />
References<br />
Natural Resource Conservation Service (NRCS) (2000) USDA National <strong>Plant</strong><br />
Data <strong>Center</strong> [online] Link: http://plants.usda.gov/java/<br />
Montana <strong>State</strong> University, Extension Service Alsike Clover (Trifolium<br />
hybridum) [online] Link: http://animalrangeextension.montana.edu/<br />
Articles/<strong>Forage</strong>/Species/Legumes/Alsikeclover.htm<br />
Legume<br />
Cultivars and Releases<br />
• ‘Aurora’ - Alberta, Canada release.<br />
• ‘Dawn’ - Canada release.<br />
I<br />
I<br />
SC<br />
SC<br />
I<br />
SC<br />
Coarse<br />
Moderately<br />
Coarse<br />
Soil Texture *<br />
Medium<br />
Moderately<br />
Fine<br />
0 2 3 2 0<br />
Fine<br />
* Soil texture is graded on a scale <strong>of</strong> 0 to 3; higher numbers<br />
denote textures to which species is most adapted.<br />
Species not<br />
adapted to region<br />
Adapted Regions:<br />
Alsike Clover<br />
• Interior<br />
• Southcentral<br />
see variety detail at left<br />
74<br />
Availability<br />
Poor<br />
Growth<br />
Form<br />
Upright<br />
crown<br />
Average<br />
Height<br />
Native or<br />
Introduced<br />
Saline<br />
Tolerance<br />
Drought<br />
Tolerance<br />
Wet Soil<br />
Tolerance<br />
Competitiveness<br />
pH Range<br />
18 - 24 in. Native Poor Poor Good Weak 5.6 - 7.5
Photo: User Rasbak (Wikimedia.org)<br />
FIELD PEA<br />
Field Pea<br />
Pisum sativum (L.)<br />
Description<br />
Mature Field Pea plant<br />
Pisum sativum, Field Pea is an annual legume that is prostrate<br />
(flat growing) by nature. When intercropped with a grass or<br />
small grain, however, the legume can reach a height <strong>of</strong> 60<br />
to 120 centimeters (24 to 48 inches), depending on variety.<br />
Intercropping allows Field Pea to wrap itself around the<br />
secondary crop allowing it to grow upward. A single leaf<br />
consists <strong>of</strong> one to three pairs <strong>of</strong> leaflets that are terminated<br />
with a branched tendril (used for climbing). Field Pea leaves<br />
are usually pale green with white blotches. This legume has a<br />
large round shaped seed and generally produces 1,600 to 5,000<br />
seeds per pound <strong>of</strong> seed, depending upon variety. Seedling<br />
vigor is low to moderate and seeds should be inoculated with<br />
proper bacterium when applicable.<br />
Uses<br />
Livestock: Field Pea is used for pasture, hay, silage and/or<br />
green cut. It is excellent forage and is highly palatable to all<br />
classes <strong>of</strong> livestock. This legume is <strong>of</strong>ten intercropped with<br />
annual grasses or oats to obtain optimal nutrient and mineral<br />
requirements <strong>of</strong> livestock.<br />
Wildlife: Field Pea is highly palatable to a variety <strong>of</strong> wildlife<br />
such as deer, elk, moose and bison. It is also utilized as food<br />
and cover for small mammals, waterfowl and upland game<br />
birds.<br />
<strong>Forage</strong> Value<br />
Field Pea is highly palatable to all classes <strong>of</strong> livestock and<br />
wildlife. It produces 20 to 25 percent protein on average and<br />
contains high levels <strong>of</strong> carbohydrates. This legume generally<br />
produces greater than 85% total digestible nutrients, with low<br />
fiber content. Intercropped with annual grasses or small grains,<br />
Field Pea can increase combined protein levels two to four<br />
times higher than with grass or small grains in monoculture.<br />
Field Pea has a moderate bloating factor, compared to other<br />
legumes, and should be fed with a grass or small grain forage<br />
to reduce the risk <strong>of</strong> bloating.<br />
Distribution and Adaptation<br />
Field Pea prefers cool, moist conditions and can be found<br />
growing throughout parts <strong>of</strong> <strong>Alaska</strong>, Canada, Greenland and<br />
the contiguous United <strong>State</strong>s. Field Pea is adapted to a variety<br />
<strong>of</strong> soil textures such as sandy loams, silts to heavy clays, and<br />
requires adequate drainage with a pH between 5.2 and 6.5.<br />
This legume cannot tolerate saline or droughty conditions.<br />
Culture<br />
Field Pea should be planted 1 to 3 inches deep in a moist firm<br />
seedbed. This promotes good seed to soil contact. Seeding<br />
rates depend greatly upon soil type, moisture, and location.<br />
Field Pea should be drill seeded when applicable, and is<br />
generally seeded at a rate <strong>of</strong> 190 lbs/acre, or 7 to 9 plants per<br />
square foot. This legume does not compete well with other<br />
species. A heavier seeding rate allows field pea to better<br />
compete with weeds.<br />
Appropriate fertilizer ratios depend upon soil type, chemistry,<br />
and location. Soil samples should be collected and analyzed<br />
before seeding. Field Pea requires phosphorus and potassium<br />
in relatively large amounts. Nitrogen is also necessary if<br />
planting in nutrient deprived soils. Over application <strong>of</strong><br />
nitrogen fertilizer can have adverse affects, however, reducing<br />
the potential <strong>of</strong> nitrogen fixation by plants. Fields should<br />
be irrigated when necessary. Irrigation in combination with<br />
fertilization can increase field productivity.<br />
Management<br />
Field Pea makes an excellent forage crop if properly managed.<br />
It can provide needed nitrogen for grasses and protein for<br />
livestock. Field Pea is not typically used for grazing, but rather<br />
it is used for silage or green chop. There are several pests that<br />
can affect Field Pea production, such as Mycosphaerella and<br />
Ascochyta. These fungi can result in poor plant performance<br />
and death if not managed. A preferred management tactic is<br />
to rotate field pea stands for several growing seasons, thus not<br />
allowing the fungus spores to persist. Fungi can survive for<br />
several years on Field Pea stubble and seed. Insects such as<br />
aphids, lygus bugs and grass hoppers can also affect Field Pea<br />
performance, though they are not usually a problem.<br />
75
Photo: Jean Tosti (Jeantosti.com)<br />
Cultivars and Releases<br />
• ‘Century’ - Canada release.<br />
• ‘Lenca’ - Canada release.<br />
• ‘Procon’ - Minnesota release.<br />
I<br />
SC<br />
Field Pea, Pisum sativum<br />
McKay, K., B. Schatz, G. Endres, (2003) Field Pea Production. North Dakota<br />
<strong>State</strong> University Extension Service [online] Link: http://pulseusa.com/pdf/<br />
fieldpea.pdf<br />
Klebesadel, L.J., (1966) <strong>Plant</strong>ing <strong>of</strong> Oats & Peas: some yield, quality, and cost<br />
considerations. Research report #4. University <strong>of</strong> <strong>Alaska</strong> Experiment Station.<br />
Palmer, AK 7 pp<br />
Legume<br />
References<br />
Natural Resource Conservation Service (NRCS) (2000) USDA National <strong>Plant</strong><br />
Data <strong>Center</strong> [online] Link: http://plants.usda.gov/java/<br />
Oelke, E.A., E.S. Oplinger, C.V. Hanson, D.W. Davis, D.H. Putnam, E.I. Fuller,<br />
& C.J. Rosen (1991) Dry Field Pea, Alternative Field Crops <strong>Manual</strong> University<br />
<strong>of</strong> Wisconson Cooperative Extension & University <strong>of</strong> Minnesota Extension<br />
Service. St. Paul MN. 10 pp [online] Link: http://www.hort.purdue.edu/<br />
newcrop/afcm/drypea.html<br />
I<br />
SC<br />
Coarse<br />
Moderately<br />
Coarse<br />
Soil Texture *<br />
Medium<br />
Moderately<br />
Fine<br />
0 2 3 2 1<br />
Fine<br />
* Soil texture is graded on a scale <strong>of</strong> 0 to 3; higher numbers<br />
denote textures to which species is most adapted.<br />
Species not<br />
adapted to region<br />
Adapted Regions:<br />
Field Pea<br />
• Interior<br />
• Southcentral<br />
76<br />
Availability<br />
Good<br />
Growth<br />
Form<br />
Upright /<br />
Prostrate<br />
Average<br />
Height<br />
Native or<br />
Introduced<br />
Saline<br />
Tolerance<br />
Drought<br />
Tolerance<br />
Wet Soil<br />
Tolerance<br />
Competitiveness<br />
pH Range<br />
24 - 48 in. Introduced Poor Poor Fair Moderate 5.2 - 6.5
RED CLOVER<br />
<strong>Forage</strong> Value<br />
Red Clover can produce high yields and is excellent forage for<br />
all classes <strong>of</strong> livestock and wildlife. Depending on season <strong>of</strong><br />
harvest, protein content <strong>of</strong> 15-25% is common. Digestibility<br />
and relative feed value start high, but decline with plant<br />
maturity. Caution should be taken when feeding Trifolium<br />
pratense to animals due to the possibility <strong>of</strong> bloat.<br />
Distribution and Adaptation<br />
Photo: Michael Apel (Wikimedia.org)<br />
Red Clover<br />
Trifolium pratense (L.)<br />
Description<br />
Red Clover, Trifolium pratense<br />
Trifolium pratense, Red Clover is a short lived perennial or<br />
biennial legume. It grows erect to decumbent culms that are<br />
hairy and hollow. Each leaf consists <strong>of</strong> a slender stalk which is<br />
petiolated and bearing 3 leaflets, which are oblong to obovate<br />
(ovalish shape). Red Clover produces numerous flowers borne<br />
in compact clusters that are reddish to pink in color. There<br />
are two types <strong>of</strong> Red Clover that are commonly referred to as<br />
Medium and Mammoth. Medium Red Clover ranges in height<br />
from 45 - 60 centimeters (18 to 24 inches), while Mammoth<br />
Red Clover reaches an average height <strong>of</strong> 75 centimeters (30<br />
inches). Red Clover grows a series <strong>of</strong> lateral roots with a<br />
tap root that is extensively branched. This legume produces<br />
a small kidney shaped seed that is yellow to deep violet in<br />
color. Red clover has high seedling vigor and produces roughly<br />
270,000 seeds per pound <strong>of</strong> seed.<br />
Uses<br />
Livestock: Red Clover is typically used for hay, pastureland,<br />
and/or silage. It produces high quality forage that is palatable<br />
to all classes <strong>of</strong> livestock.<br />
Wildlife: Red Clover is highly palatable to large grazing and<br />
browsing animals such as deer, elk and bison. It is also utilized<br />
as food and cover by small mammals, waterfowl, and upland<br />
game birds.<br />
Red Clover is adapted to a variety <strong>of</strong> soils types but grows<br />
best in well drained loamy soils. It can be found growing<br />
throughout the United <strong>State</strong>s and Canada. Red Clover prefers<br />
a pH <strong>of</strong> 5.5 to 7.5 and has low drought tolerance. This legume<br />
can tolerate high moisture environments and has a moderate<br />
to low shade tolerance.<br />
Culture<br />
Red Clover should be planted at ¼ to ½ inch deep in well<br />
drained loamy to silt loam soils that have a high water holding<br />
capacity. It should be inoculated with the appropriate rhizobium<br />
innoculant, as this will help with plant establishment and<br />
seedling vigor. When seeded alone in pure stands, Red Clover<br />
should be drill seeded at a rate <strong>of</strong> 6-12 lbs/acre and 20-25 lbs/<br />
acre when broadcast seeding. Red Clover can also be seeded<br />
in mixtures with small grains or grasses like Barley (Hordeum<br />
vulgare), Timothy (Phleum pratense), and Smooth Brome<br />
(Bromus inermis). Standard seeding rates when seeded in a<br />
mix is 4-8 lbs/acre. All seeding rates are determined by using<br />
Pure Live Seed (PLS) calculations, as described in Appendix B.<br />
Appropriate fertilizer ratios depend upon soil type, chemistry,<br />
and location. Soil samples should be collected and analyzed<br />
before fertilizer is applied. Phosphorus is used in large<br />
quantities by Red Clover, which is a limiting factor on most soils.<br />
Pastures and hay fields should be irrigated when necessary<br />
and/or applicable. Irrigation in combination with fertilization<br />
should increase overall yields.<br />
Management<br />
Red Clover makes an excellent pasture, hay, or silage forage.<br />
It should be harvested ¼ to ½ in bloom during the first cutting.<br />
Successive grazing or a second cutting should occur when the<br />
legume is ¼ <strong>of</strong> the way into bloom stage, and at least 2 inches<br />
<strong>of</strong> growth should remain after harvest. Red Clover responds<br />
well to fertilizers and should be supplied with ample amounts<br />
<strong>of</strong> phosphorus and/or potash. Red Clover also responds well<br />
to irrigation when planted in moderate to well drained soils.<br />
When growing Red Clover, one should monitor for powdery<br />
mildew in areas <strong>of</strong> high humidity and/or rainfall. Resistant<br />
cultivars have been developed to reduce the occurrence <strong>of</strong><br />
these pests.<br />
77
Legume<br />
Photo: Wikimedia.org<br />
Cultivars and Releases<br />
A mature stand <strong>of</strong> Red Clover<br />
• ‘<strong>Alaska</strong>land’ - University <strong>of</strong> <strong>Alaska</strong> Fairbanks release.<br />
I<br />
SC<br />
References<br />
Natural Resource Conservation Service (NRCS) (2000) USDA National <strong>Plant</strong><br />
Data <strong>Center</strong> [online] Link: http://plants.usda.gov/java/<br />
Maurice, E.H., D.S. Metcalfe, R.F. Barnes (1973) <strong>Forage</strong>s, The Science <strong>of</strong><br />
Grassland Agriculture. Iowa <strong>State</strong> University Press. Ames, Iowa. 755 pp<br />
I<br />
SC<br />
Hulten, E. (1968) Flora <strong>of</strong> <strong>Alaska</strong> and Neighboring Territories. Stanford<br />
University press. Stanford California. 1008 pp<br />
Coarse<br />
Moderately<br />
Coarse<br />
Soil Texture *<br />
Medium<br />
Moderately<br />
Fine<br />
Fine<br />
0 2 3 2 1<br />
* Soil texture is graded on a scale <strong>of</strong> 0 to 3; higher numbers<br />
denote textures to which species is most adapted.<br />
Species not<br />
adapted to region<br />
Adapted Regions:<br />
Red Clover<br />
• Interior<br />
• Southcentral<br />
78<br />
Availability<br />
Good<br />
Growth<br />
Form<br />
Upright<br />
crown<br />
Average<br />
Height<br />
Native or<br />
Introduced<br />
Saline<br />
Tolerance<br />
Drought<br />
Tolerance<br />
Wet Soil<br />
Tolerance<br />
Competitiveness<br />
pH Range<br />
18 - 24 in. Introduced Poor Poor Good Moderate 5.5 - 7.5
Photo: Wikimedia .org<br />
WHITE CLOVER<br />
White Clover in bloom<br />
White Clover<br />
Trifolium repens (L.)<br />
Description<br />
Trifolium repens, White Clover is a moderate lived perennial<br />
legume that can attain heights <strong>of</strong> 15 - 30 centimeters (6 to 12<br />
inches), depending upon variety. It has a prostrate (flat) growth<br />
habit, spreading laterally by stolons. Leaves are composed <strong>of</strong><br />
three leaflets that sometimes display a watermark or crescent.<br />
Leaves and roots are borne along the stolon at each node.<br />
Inflorescence (seed-head) consists <strong>of</strong> 40 to 100 florets that are<br />
borne along long slender stalks. Florets are usually white, but<br />
sometimes display a pink hue. White Clover has a shallow root<br />
system with a primary tap root that seldom roots deeper than<br />
60 centimeters (24 inches). This legume grows a small heart<br />
shaped seed, and produces roughly 700,000 seeds per pound<br />
<strong>of</strong> seed. Seedling vigor is low to moderate depending upon<br />
the selected variety.<br />
Uses<br />
Livestock: White Clover can be used for pasture, hay or silage<br />
production. It is highly palatable to all classes <strong>of</strong> livestock and<br />
has a low potential <strong>of</strong> bloating.<br />
Wildlife: White Clover is highly palatable to a variety <strong>of</strong> large<br />
wildlife, such as deer, elk, moose and bison. It is also utilized<br />
as food and cover by small mammals, waterfowl and upland<br />
game birds.<br />
<strong>Forage</strong> Value<br />
White Clover is highly palatable to all classes <strong>of</strong> livestock<br />
and wildlife. It produces ample amounts <strong>of</strong> protein with<br />
consistently high mineral content, compared to other clover<br />
species. This legume is highly digestible and generally<br />
produces a higher percentage <strong>of</strong> amino acids than Alfalfa and/<br />
or Red Clover. When nutrients are available, White Clover can<br />
concentrate Na, P, Cl, and/or Mo, delivering these nutrients to<br />
grazing animals. The risk <strong>of</strong> bloating is generally moderate to<br />
low and is greatly reduced when White Clover is grown with<br />
grass species.<br />
Distribution and Adaptation<br />
White Clover is adapted to moist and/or wet conditions and<br />
can be found growing throughout the United <strong>State</strong>s, Canada,<br />
and some portions <strong>of</strong> <strong>Alaska</strong>. It prefers fine texture soils such<br />
as silts and clays, containing moderate to high nutrient levels.<br />
White Clover will persist in soils with a pH ranging from 5.2-<br />
8.0. It will not tolerate or sustain in shady, droughty, saline, or<br />
nutrient deprived environments.<br />
Culture<br />
White Clover should be planted ¼ to ½ inch deep in a firm<br />
seed bed with well drained silty or clay loam soils. Seeding<br />
rates depend greatly upon soil type, moisture, and location.<br />
It is highly recommended that White Clover be drill seeded<br />
to ensure good seed to soil contact. An average seeding rate<br />
when drill seeding White Clover is 2-4 lbs/acre. This seeding<br />
rate applies to almost all situations and can be used when<br />
planting White Clover with a grass species. A widely accepted<br />
ratio <strong>of</strong> 2:1 is an ideal balance <strong>of</strong> grass to clover, using the<br />
above recommended clover drilling rate. All seeding rates<br />
are determined by using Pure Live Seed (PLS) calculations, as<br />
described in Appendix B.<br />
Appropriate fertilizer ratios depend upon soil type, chemistry,<br />
and location. Soil samples should be collected and analyzed<br />
before field seeding. High application rates <strong>of</strong> nitrogen can<br />
damage or destroy stands <strong>of</strong> White Clover and caution<br />
should be taken when applying fertilizer. Pastures and hay<br />
fields should be irrigated when necessary and/or applicable.<br />
Irrigation in combination with fertilization should increase<br />
field productivity.<br />
Management<br />
White Clover makes an excellent pasture forage, but is<br />
generally not used for hay or silage production unless large<br />
and/or tall cultivars are selected and grown. The cultivar<br />
‘Ladino’ is a large and tall growing variety <strong>of</strong> white clover that<br />
is commonly used for hay, silage, and green chop production.<br />
White Clover will respond well to irrigation, moderate grazing<br />
pressure, and commercial fertilizers. This legume usually<br />
displays adverse affects when nitrogen fertilizers are supplied<br />
in excess. Liming may be necessary to achieve the optimal pH<br />
for white clover growth.<br />
79
Photo: Forest and Kim Starr (Wikimedia.org)<br />
White Clover is typically grown with other forage grasses.<br />
This is generally implemented in order for grasses to take<br />
advantage <strong>of</strong> the nitrogen fixating ability <strong>of</strong> White Clover, and<br />
to lower the potential <strong>of</strong> bloating by adding dry matter to the<br />
feed mix. White Clover can be susceptible to a number <strong>of</strong><br />
root and leaf diseases as well as insect pests. Most <strong>of</strong> these<br />
potential problems exist in mid to lower latitudes.<br />
Cultivars and Releases<br />
White Clover, Trifolium repens<br />
References<br />
Natural Resource Conservation Service (NRCS) (2000) USDA National <strong>Plant</strong><br />
Data <strong>Center</strong> [online] Link: http://plants.usda.gov/java/<br />
Maurice, E.H., D.S. Metcalfe, R.F. Barnes (1973) <strong>Forage</strong>s, The Science <strong>of</strong><br />
Grassland Agriculture. Iowa <strong>State</strong> University Press. Ames, Iowa. 755 pp<br />
Hulten, E. (1968) Flora <strong>of</strong> <strong>Alaska</strong> and Neighboring Territories. Stanford<br />
University press. Stanford California. 1008 pp<br />
Legume<br />
• ‘Ladino’ (Large type) - developed in Italy.<br />
• ‘Pilgrim’ (Large type / winter-hardy)<br />
• ‘Merit’ (Large type / winter-hardy)<br />
• ‘New York’ (Small type)<br />
• ‘Kent Wild’ (Small type)<br />
I<br />
SC<br />
I<br />
SC<br />
Coarse<br />
Moderately<br />
Coarse<br />
Soil Texture *<br />
Medium<br />
Moderately<br />
Fine<br />
0 2 3 2 0<br />
Fine<br />
* Soil texture is graded on a scale <strong>of</strong> 0 to 3; higher numbers<br />
denote textures to which species is most adapted.<br />
Species not<br />
adapted to region<br />
Adapted Regions:<br />
White Clover<br />
• Interior<br />
• Southcentral<br />
Availability<br />
Growth<br />
Form<br />
Average<br />
Height<br />
Native or<br />
Introduced<br />
Saline<br />
Tolerance<br />
Drought<br />
Tolerance<br />
Wet Soil<br />
Tolerance<br />
Competitiveness<br />
pH Range<br />
80<br />
Poor Prostrate 6 - 12 in. Introduced Poor Fair Good Weak 5.2 - 8
Section D. Additional Information<br />
• Appendix A: Nutrient Study<br />
• Introduction<br />
• Methods and Procedures<br />
• Lab Analysis<br />
• Report <strong>of</strong> Findings<br />
• Species Growth Charts<br />
• Appendix B: Seed Specifications / Certification<br />
• Appendix C: Prohibited & Restricted Noxious Weeds<br />
• Glossary<br />
• Works Cited
Appendix A: Nutrient Study<br />
(Analysis <strong>of</strong> Collected <strong>Plant</strong> Nutritional Quality Data at Different Growth Stages)<br />
Photo: Brianne Blackburn AK PMC<br />
Photo: Casey Dinkel (AK PMC)<br />
Photo: Stoney J. Wright (AK PMC)<br />
Photo: Brennan Veith Low (AK PMC)<br />
Photo: Casey Dinkel (AK PMC)<br />
Detailed measurements <strong>of</strong> nutrient availability at various plant growth stages were taken during this study.<br />
Introduction<br />
<strong>Forage</strong> production in <strong>Alaska</strong> presents unique challenges, due to the short growing<br />
season (100-118 days) and harsh environments encountered throughout diverse regions<br />
<strong>of</strong> the state. Spring planting is optimal, as planted species are able to utilize<br />
available moisture from winter snowmelt and take advantage <strong>of</strong> the warmer temperatures<br />
and longer days <strong>of</strong> summer. Average summer temperatures in <strong>Alaska</strong> range<br />
from 51 - 61 ̊F, with an 18 to 24 hour photo period in June.<br />
Though these climatic factors present some challenges, forage production numbers<br />
are stable. The mean per ton cost varies largely in <strong>Alaska</strong>, from $225/ton - $750/ton,<br />
considerably higher than the $90 per ton common in the lower 48. The high price<br />
variability can be attributed to high production costs, a shortage <strong>of</strong> available hay and<br />
uncontrollable climate variables. To adapt to and overcome <strong>Alaska</strong>’s climate and geography,<br />
managers should choose forage species with high nutritional value. This will<br />
enable an animal’s nutrient intake levels to be met while minimizing the expense <strong>of</strong><br />
nutritional supplements.<br />
82
Purpose<br />
The goal <strong>of</strong> this study was to determine nutrient<br />
content <strong>of</strong> forage species within each distinct plant<br />
growth stage. Five growth stages were examined<br />
for grass, legume, and cereal crop species - Vegetative,<br />
Pre-boot, Boot, Anthesis (flowering) and Caryopsis<br />
(ripening). Samples <strong>of</strong> vegetative matter were<br />
taken at each stage and sent to a lab for nutrient<br />
analysis. Data extrapolated from testing can be used<br />
by producers and consumers as a means <strong>of</strong> choosing<br />
forage species based on the needs <strong>of</strong> livestock and/<br />
or wildlife.<br />
An additional intent <strong>of</strong> this study was to look at the<br />
nutritional content <strong>of</strong> native and non-native plant<br />
species, and determine if any non-native species<br />
have sufficiently high nutritional value to warrant<br />
inclusion in forage plantings in <strong>Alaska</strong>. Timothy and<br />
Brome are two examples <strong>of</strong> non-native species with<br />
high nutritional value.<br />
Methods & Procedures<br />
This effort was conducted at <strong>Alaska</strong> <strong>Plant</strong> <strong>Materials</strong><br />
<strong>Center</strong> in Palmer, <strong>Alaska</strong> during the 2011 growing<br />
season. Fields were well established and fairly free<br />
<strong>of</strong> weeds. <strong>Plant</strong> species were evaluated and growth<br />
stages were monitored daily. Each species collection<br />
was accompanied by field observations as noted by<br />
the sample collector. Standardized collection procedures<br />
were followed.<br />
Growth <strong>State</strong> Indicators<br />
1. Vegetative: Leaf growth and development; no<br />
stems<br />
2. Pre-boot: Stem elongation or “jointing”; stem<br />
or culm development occurs<br />
3. Boot: The seedhead (inflorescence) emerges<br />
from the tiller<br />
4. Anthesis (flowering): Pollen starts to shed from<br />
the anthers<br />
5. Ripening: This stage begins with the development<br />
<strong>of</strong> the caryopsis (seed) and ceases when<br />
they are ripe. Also denotes the end <strong>of</strong> the growing<br />
season; leaves start to change color.<br />
Species Collection<br />
1. A handful <strong>of</strong> grass was clipped with scissors, leaving<br />
about 2-3 inches <strong>of</strong> stubble above ground.<br />
Five samples were collected for each species.<br />
2. Each sample was cut into sections <strong>of</strong> approximately<br />
8 inches in length, placed into a five gallon<br />
bucket and then mixed together so representative<br />
samples could be taken. Any decadent<br />
(previous year’s) growth was removed so that<br />
only the current season’s growth was analyzed.<br />
3. Approximately 200 grams <strong>of</strong> grass was removed<br />
from the five gallon bucket and put into a ½ gallon<br />
bag. Each bag was labeled with date, species<br />
name, and growth stage.<br />
4. Samples collected were delivered the same day<br />
to the University <strong>of</strong> <strong>Alaska</strong> Fairbanks Experiment<br />
Farm for testing.<br />
83
Lab Analysis<br />
Samples were collected from well established fields<br />
near the <strong>Plant</strong> <strong>Materials</strong> <strong>Center</strong> in Palmer, <strong>Alaska</strong>.<br />
The samples were gathered during the following<br />
growth stages; Vegetative, Pre-boot, Boot, Anthesis<br />
(flowering) and Ripening. The rationale <strong>of</strong> collecting<br />
samples in these growth stages was to determine<br />
the gain and loss <strong>of</strong> nutrients throughout a typical<br />
graminoid life cycle.<br />
Samples submitted for analysis were tested for<br />
crude protein (CP) , minerals, acid detergent fiber<br />
(ADF), neutral detergent fiber (NDF), total digestible<br />
nutrients (TDN) and various other constituents. ADF<br />
and NDF are used to measure the portion <strong>of</strong> indigestible<br />
material within the sample, which inversely correlates<br />
to nutrient content.<br />
The relative feed value (RFV) is an estimate <strong>of</strong> forage<br />
quality and is calculated from ADF and NDF percentages.<br />
The RFV grading system assumes that full<br />
bloom alfalfa has an RFV <strong>of</strong> 100; this legume is typically<br />
used as a baseline reference for grading forage.<br />
The RFV for each grass species within this study was<br />
calculated for all five growth stages. Results can be<br />
compared to the ranges given in the table below,<br />
developed by the American <strong>Forage</strong> and Grassland<br />
Council as a guideline for measuring forage quality.<br />
<strong>Forage</strong> Grade ADF NDF RFV<br />
Prime<br />
1<br />
(Premium)<br />
2<br />
(Good)<br />
3<br />
(Fair)<br />
4<br />
(Poor)<br />
5<br />
(Very Poor)<br />
Under<br />
30%<br />
Under<br />
40%<br />
Over<br />
151<br />
31% - 35% 41% - 46% 150-125<br />
36% - 40% 47% - 53% 124-103<br />
41% - 42% 54% - 60% 102-87<br />
43% - 45% 61% - 65% 86-75<br />
Over<br />
46%<br />
Over<br />
66%<br />
Under<br />
74<br />
Report <strong>of</strong> Findings<br />
As expected, all grass species showed higher crude<br />
protein values during the vegetative and pre-boot<br />
(early growth cycle) stages. Decline in protein levels<br />
became evident after boot stage, though indigestible<br />
nutrients (fiber) began to increase. Other essential<br />
minerals like phosphorus (P), potassium (K), and<br />
Calcium (Ca) were measured in higher levels during<br />
the early growth stages and began to drop as plant<br />
species neared maturity. Acid and Neutral detergent<br />
fiber percentages increased steadily throughout the<br />
plant’s life cycle, lowering the relative feed value and<br />
total digestible nutrients percentage <strong>of</strong> each forage<br />
species.<br />
This nutrient assessment can assist growers in determining<br />
the best possible time to harvest forage<br />
based on the needs <strong>of</strong> their livestock and/or wildlife.<br />
If a grower seeks high quality and/or high nutrient<br />
forage, grasses should be harvested during an earlier<br />
growth such as the boot stage. When high production<br />
yield is the goal, grasses should be harvested<br />
later, during the anthesis and/or flowering stage.<br />
Scheduling the harvest based on stages <strong>of</strong> plant development<br />
can be a reliable way to obtain a desired<br />
yield and/or quality forage from year to year.<br />
Graph Interpretation<br />
When interpreting data in the Nutrient Study, one<br />
should be aware <strong>of</strong> several characteristics associated<br />
with the following graphs. In general, Relative<br />
Feed Value (RFV), Crude Protein (CP) and Total<br />
Digestible Nutrient (TDN) values will decrease with<br />
time as a plant matures through the growing season.<br />
Contrarily, Neutral Detergent Fiber (NDF) and Acid<br />
Detergent Fiber (ADF) values should typically increase<br />
with time and plant maturity. Pronounced increases<br />
or decreases (spikes) within the graphs can<br />
be attributed to the variability in randomly selected<br />
forage samples.<br />
All data within the graphs <strong>of</strong> this study are displayed,<br />
so the reader may compare nutrient values<br />
and trends with other grass species. While not presented<br />
in graph form, values for phosphorus (P), potassium<br />
(K), calcium (Ca), in-vitro dry matter digestibility<br />
(IVDMD), metabolized energy, net energy, and<br />
dry matter (DM) are listed in a table for each grass<br />
species.<br />
84
Alpine Bluegrass, Poa alpina<br />
Moisture Free<br />
Growth Phase % CP % P % K % Ca % ADF % NDF<br />
% IVDMD<br />
(est.)<br />
% TDN<br />
Metab.<br />
Energy<br />
(MCal / Lb)<br />
Net<br />
Energy RFV % DM<br />
Vegetative: May 23 rd 25.11 0.28 1.77 0.51 19.82 45.88 77 76 1.33 0.92 149 95.8<br />
Pre-Boot: June 14 th 19.47 0.32 2.15 0.46 32.52 56.35 63 60 1.02 0.67 105 95.70<br />
Boot: June 16 th 20.03 0.38 2.51 0.43 28.12 53.67 69 67 1.14 0.77 116 95.52<br />
Anthesis: June 21 st 10.05 0.26 1.85 0.23 36.98 68.74 57 55 0.91 0.58 81 96.97<br />
Ripening: July 26 th 9.80 0.25 1.01 0.34 33.11 60.07 62 60 1.01 0.66 98 97.59<br />
As Fed<br />
Growth Phase % CP % P % K % Ca % ADF % NDF<br />
% IVDMD<br />
(est.)<br />
% TDN<br />
Metab.<br />
Energy<br />
(MCal / Lb)<br />
Net<br />
Energy RFV % DM<br />
Vegetative: May 23 rd 6.50 0.07 0.46 0.13 5.13 11.87 19.93 19.67 0.34 0.24 39.0 25.88<br />
Pre-Boot: June 14 th 5.09 0.08 0.56 0.12 8.50 14.74 16.47 15.69 0.27 0.18 27.4 26.15<br />
Boot: June 16 th 5.66 0.11 0.71 0.12 7.95 15.18 19.51 18.95 0.32 0.22 32.8 28.28<br />
Anthesis: June 21 st 2.60 0.07 0.48 0.06 9.55 17.76 14.72 14.21 0.24 0.15 21.0 25.83<br />
Ripening: July 26 th 4.17 0.11 0.43 0.14 14.09 25.56 26.00 26.00 0.43 0.28 42.00 42.55<br />
85
American Sloughgrass, Beckmannia syzigachne<br />
Moisture Free<br />
Growth Phase % CP % P % K % Ca % ADF % NDF<br />
% IVDMD<br />
(est.)<br />
% TDN<br />
Metab.<br />
Energy<br />
(MCal / Lb)<br />
Net<br />
Energy RFV % DM<br />
Vegetative: May 27 th 23.61 0.26 1.73 0.33 24.07 45.64 74 72 1.25 0.86 143 95.86<br />
Pre-Boot: June 8 th 19.22 0.34 2.83 0.43 22.88 46.49 75 73 1.28 0.88 142 98.24<br />
Boot: June 16 th 17.91 0.30 3.30 0.27 28.44 54.99 68 66 1.14 0.76 113 95.97<br />
Anthesis: June 28 th 14.27 0.29 2.06 0.28 34.88 64.07 60 57 0.96 0.62 90 95.90<br />
Ripening: July 28 th 12.56 0.27 1.59 0.30 34.86 63.05 60 57 0.96 0.62 91 97.55<br />
As Fed<br />
Growth Phase % CP % P % K % Ca % ADF % NDF<br />
% IVDMD<br />
(est.)<br />
Ripening: July 28 th 4.33 0.09 0.55 0.10 12.01 21.72 21 20 0.33 0.21 31 34.56<br />
86<br />
% TDN<br />
Metab.<br />
Energy<br />
(MCal / Lb)<br />
Net<br />
Energy RFV % DM<br />
Vegetative: May 27 th 5.36 0.06 0.39 0.07 5.47 10.36 16.81 16.35 0.28 0.20 32.00 22.71<br />
Pre-Boot: June 8 th 2.57 0.04 0.38 0.06 3.06 6.23 10.04 9.77 0.17 0.12 19.04 13.39<br />
Boot: June 16 th 2.80 0.05 0.52 0.04 4.45 8.61 10.65 10.34 0.18 0.12 17.68 15.66<br />
Anthesis: June 28 th 2.50 0.05 0.36 0.05 6.12 11.24 11.00 10.00 0.17 0.11 16.00 17.55
Annual Rye, Lolium multiflorum<br />
Moisture Free<br />
Growth Phase % CP % P % K % Ca % ADF % NDF % IVDMD<br />
(est.)<br />
%<br />
TDN<br />
Metab.<br />
Energy<br />
(MCal / Lb)<br />
Net<br />
Energy RFV % DM<br />
Vegetative: July 18 th 16.86 0.35 4.15 0.59 26.18 45.06 71 69 1.20 0.81 141 97.13<br />
Pre-Boot: July 28 th 12.82 0.33 2.82 0.52 30.37 51.75 66 63 1.08 0.72 117 97.52<br />
Boot: August 8 th 10.73 0.25 1.71 0.48 32.34 54.52 63 61 1.03 0.68 109 97.28<br />
Anthesis: August 22 nd 8.70 0.25 1.27 0.46 30.52 51.06 65 63 1.08 0.72 119 97.69<br />
Ripening: September 27 th 7.15 0.23 0.59 0.32 22.40 42.62 75 74 1.29 0.89 156 96.98<br />
* note - this sample was not taken from an established field; samples were taken from 1 st year planting - planting date June 25th<br />
As Fed<br />
Growth Phase % CP % P % K % Ca % ADF % NDF % IVDMD<br />
(est.)<br />
% TDN<br />
Metab.<br />
Energy<br />
(MCal / Lb)<br />
Net<br />
Energy RFV % DM<br />
Vegetative: July 18 th 1.91 0.04 0.47 0.07 2.97 5.11 8 8 0.14 0.09 16 11.34<br />
Pre-Boot: July 28 th 2.52 0.06 0.55 0.10 5.97 10.17 13 12 0.21 0.14 23 19.66<br />
Boot: August 8 th 2.93 0.06 0.38 0.11 7.20 12.14 14 14 0.23 0.15 24 22.26<br />
Anthesis: August 22 nd 2.52 0.07 0.37 0.13 8.85 14.80 19 18 0.31 0.21 34 28.99<br />
Ripening: September 27 th 2.95 0.09 0.24 0.13 9.25 17.60 31 31 0.53 0.37 64 41.30<br />
* note - this sample was not taken from an established field; samples were taken from 1 st year planting - planting date June 25th<br />
87
Beach Wildrye, Leymus mollis<br />
Moisture Free<br />
Growth Phase % CP % P % K % Ca % ADF % NDF<br />
% IVDMD<br />
(est.)<br />
% TDN<br />
Metab.<br />
Energy<br />
(MCal / Lb)<br />
Net<br />
Energy RFV % DM<br />
Vegetative: May 31 st 19.01 0.18 2.60 0.13 30.75 58.73 65 63 1.07 0.71 103 96.31<br />
Pre-Boot: June 14 th 17.44 0.19 3.19 0.18 32.75 59.99 62 60 1.02 0.67 98 96.04<br />
Boot: June 16 th 11.97 0.21 2.92 0.26 35.67 63.47 59 56 0.94 0.61 90 95.56<br />
Anthesis: June 28 th 13.57 0.17 2.44 0.18 38.39 65.82 56 53 0.88 0.55 83 95.34<br />
Ripening: August 22 nd 9.46 0.10 2.27 0.23 43.70 69.61 50 47 0.76 0.46 73 98.42<br />
Growth Phase % CP % P % K % Ca<br />
%<br />
ADF<br />
As Fed<br />
Ripening: August 22 nd 2.72 0.03 0.65 0.07 12.54 19.98 14.00 13.00 0.22 0.13 21.00 28.70<br />
88<br />
% NDF<br />
% IVDMD<br />
(est.)<br />
% TDN<br />
Metab.<br />
Energy<br />
(MCal / Lb)<br />
Net<br />
Energy RFV % DM<br />
Vegetative: May 31 st 4.08 0.04 0.56 0.03 6.59 12.59 13.94 13.51 0.23 0.15 22.00 21.44<br />
Pre-Boot: June 14 th 3.37 0.04 0.62 0.03 6.33 11.60 11.99 11.60 0.20 0.13 19.01 19.34<br />
Boot: June 16 th 2.15 0.04 0.52 0.05 6.41 11.40 10.60 10.06 0.17 0.11 16.09 17.96<br />
Anthesis: June 28 th 2.59 0.03 0.47 0.03 7.31 12.54 11.00 10.00 0.17 0.10 16.00 19.05
Bering Hairgrass, Deschampsia beringensis<br />
Moisture Free<br />
Growth Phase % CP % P % K % Ca % ADF % NDF<br />
% IVDMD<br />
(est.)<br />
% TDN<br />
Metab.<br />
Energy<br />
(MCal / Lb)<br />
Net<br />
Energy RFV % DM<br />
Vegetative: May 31 st 20.62 0.26 2.10 0.33 27.99 54.36 69 67 1.15 0.77 115 95.76<br />
Pre-Boot: June 8 th 18.10 0.25 1.93 0.44 25.43 48.72 72 70 1.22 0.83 132 98.40<br />
Boot: June 16 th 12.24 0.22 1.93 0.37 31.45 59.04 64 62 1.05 0.70 101 95.54<br />
Anthesis: June 28 th 12.64 0.19 1.11 0.37 40.09 67.86 54 51 0.84 0.52 79 95.40<br />
Ripening: July 28 th 8.57 0.15 1.45 0.35 34.80 63.42 60 57 0.96 0.62 91 97.74<br />
As Fed<br />
Growth Phase % CP % P % K % Ca % ADF % NDF<br />
% IVDMD<br />
(est.)<br />
% TDN<br />
Metab.<br />
Energy<br />
(MCal / Lb)<br />
Net<br />
Energy RFV % DM<br />
Vegetative: May 31 st 4.53 0.06 0.46 0.07 6.16 11.95 15.17 14.73 0.25 0.17 25.00 21.99<br />
Pre-Boot: June 8 th 4.15 0.06 0.44 0.10 5.83 11.17 16.50 16.04 0.28 0.19 30.24 22.92<br />
Boot: June 16 th 3.00 0.05 0.47 0.09 7.72 14.49 15.71 15.21 0.26 0.17 24.90 24.54<br />
Anthesis: June 28 th 3.42 0.05 0.30 0.10 10.84 18.34 15 14 0.23 0.14 21 27.03<br />
Ripening: July 28 th 2.67 0.05 0.45 0.11 10.84 19.75 19 18 0.30 0.19 28 31.14<br />
89
Bluejoint Reedgrass, Calamagrostis canadensis<br />
Moisture Free<br />
Growth Phase % CP % P % K % Ca % ADF % NDF<br />
% IVDMD<br />
(est.)<br />
% TDN<br />
Metab.<br />
Energy<br />
(MCal / Lb)<br />
Net<br />
Energy RFV % DM<br />
Vegetative: May 25 th 21.89 0.26 3.11 0.22 28.56 58.85 68 66 1.13 0.76 105 96.51<br />
Pre-Boot: June 2 nd 15.45 0.26 2.36 0.22 32.41 63.18 63 61 1.03 0.68 94 96.28<br />
Boot: June 16 th 13.79 0.16 1.79 0.14 43.14 70.57 51 48 0.77 0.47 73 96.05<br />
Anthesis: June 30 th 7.39 0.13 1.12 0.14 43.04 72.94 51 48 0.78 0.47 71 95.58<br />
Ripening: July 28 th 7.08 0.15 0.77 0.27 37.98 63.51 56 54 0.89 0.56 87 98.06<br />
As Fed<br />
Growth Phase % CP % P % K % Ca % ADF % NDF<br />
% IVDMD<br />
(est.)<br />
Ripening: July 28 th 3.14 0.07 0.34 0.12 16.85 28.17 25 24 0.39 0.25 39 44.36<br />
90<br />
% TDN<br />
Metab.<br />
Energy<br />
(MCal / Lb)<br />
Net<br />
Energy RFV % DM<br />
Vegetative: May 25 th 4.11 0.05 0.58 0.04 5.37 11.06 12.78 12.40 0.21 0.14 20.00 18.79<br />
Pre-Boot: June 2 nd 3.04 0.05 0.46 0.04 6.38 12.43 12.39 12.00 0.20 0.13 18.00 19.67<br />
Boot: June 16 th 3.66 0.04 0.47 0.04 11.44 18.71 13.52 12.72 0.20 0.12 19.32 27.51<br />
Anthesis: June 30 th 2.03 0.03 0.31 0.04 11.81 20.01 14 13 0.21 0.13 19 27.43
Kentucky Bluegrass, Poa pratensis<br />
Moisture Free<br />
Growth Phase % CP % P % K % Ca % ADF % NDF<br />
% IVDMD<br />
(est.)<br />
% TDN<br />
Metab.<br />
Energy<br />
(MCal / Lb)<br />
Net<br />
Energy RFV % DM<br />
Vegetative: June 8 th 16.13 0.30 2.29 0.39 29.91 61.06 66 64 1.09 0.73 100 98.43<br />
Pre-Boot: June 14 th 15.29 0.25 2.17 0.36 32.33 65.64 63 61 1.03 0.68 90 95.70<br />
Boot: June 16 th 12.93 0.24 2.04 0.35 34.10 65.56 61 58 0.98 0.64 88 95.21<br />
Anthesis: June 28 th 10.17 0.20 1.26 0.40 33.58 64.77 61 59 0.99 0.65 90 95.30<br />
Ripening: July 28 th 9.95 0.20 1.60 0.64 32.76 63.03 62 60 1.02 0.67 94 98.01<br />
As Fed<br />
Growth Phase % CP % P % K % Ca % ADF % NDF<br />
% IVDMD<br />
(est.)<br />
% TDN<br />
Metab.<br />
Energy<br />
(MCal / Lb)<br />
Net<br />
Energy RFV % DM<br />
Vegetative: June 8 th 4.09 0.08 0.58 0.10 7.59 15.48 16.74 16.23 0.28 0.19 25.34 25.36<br />
Pre-Boot: June 14 th 3.46 0.06 0.49 0.08 7.31 14.85 14.25 13.80 0.23 0.15 20.42 22.62<br />
Boot: June 16 th 3.70 0.07 0.58 0.10 9.77 18.78 17.47 16.61 0.28 0.18 25.33 28.64<br />
Anthesis: June 28 th 3.87 0.08 0.48 0.15 12.78 24.66 23.00 22.00 0.38 0.25 34.00 38.07<br />
Ripening: July 28 th 3.81 0.08 0.61 0.25 12.55 24.15 24.00 23.00 0.39 0.26 36.00 38.32<br />
91
Polargrass, Arctagrostis latifolia<br />
Moisture Free<br />
Growth Phase % CP % P % K % Ca % ADF % NDF<br />
% IVDMD<br />
(est.)<br />
% TDN<br />
Metab.<br />
Energy<br />
(MCal / Lb)<br />
Net<br />
Energy RFV % DM<br />
Vegetative: May 23 rd 25.21 0.32 3.13 0.45 27.52 54.94 69 67 1.16 0.78 114 95.7<br />
Pre-Boot: June 8 th 12.74 0.26 2.61 0.36 32.57 60.64 63 60 1.02 0.67 97 98.57<br />
Boot: June 16 th 15.23 0.29 2.87 0.48 33.53 64.17 61 59 1.00 0.65 91 95.59<br />
Anthesis: June 28 th 15.96 0.26 1.81 0.43 32.63 59.54 63 60 1.02 0.67 99 95.55<br />
Ripening: July 28 th 10.02 0.20 1.77 0.47 35.02 62.57 60 57 0.96 0.62 92 97.91<br />
As Fed<br />
Growth Phase % CP % P % K % Ca % ADF % NDF<br />
% IVDMD<br />
(est.)<br />
Ripening: July 28 th 2.80 0.06 0.49 0.13 9.79 17.49 17 16 0.27 0.17 26 27.96<br />
92<br />
% TDN<br />
Metab.<br />
Energy<br />
(MCal / Lb)<br />
Net<br />
Energy RFV % DM<br />
Vegetative: May 23 rd 4.25 0.05 0.53 0.08 4.64 19.26 11.63 11.29 0.20 0.13 19.00 16.85<br />
Pre-Boot: June 8 th 2.59 0.05 0.53 0.07 6.61 12.30 12.78 12.17 0.21 0.14 19.77 20.29<br />
Boot: June 16 th 3.20 0.06 0.60 0.10 7.04 13.48 12.81 12.39 0.21 0.14 19.11 21.00<br />
Anthesis: June 28 th 3.64 0.06 0.41 0.10 7.45 13.59 14 14 0.23 0.15 23 22.82
Red Fescue, Festuca rubra<br />
Moisture Free<br />
Growth Phase % CP % P % K % Ca % ADF % NDF<br />
% IVDMD<br />
(est.)<br />
% TDN<br />
Metab.<br />
Energy<br />
(MCal / Lb)<br />
Net<br />
Energy RFV % DM<br />
Vegetative: May 25 th 24.77 0.31 3.00 0.32 23.32 52.08 74 73 1.27 0.87 126 97.19<br />
Pre-Boot: June 2 nd 19.12 0.35 2.51 0.41 29.49 57.74 67 65 1.11 0.74 106 96.12<br />
Boot: June 16 th 12.32 0.28 2.75 0.35 31.60 61.74 64 62 1.05 0.69 97 95.86<br />
Anthesis: June 28 th 11.33 0.25 1.74 0.47 34.02 60.61 61 58 0.98 0.64 96 95.96<br />
Ripening: July 26 th 7.81 0.17 1.36 0.50 35.14 67.95 59 57 0.95 0.62 84 97.76<br />
As Fed<br />
Growth Phase % CP % P % K % Ca % ADF % NDF<br />
% IVDMD<br />
(est.)<br />
% TDN<br />
Metab.<br />
Energy<br />
(MCal / Lb)<br />
Net<br />
Energy RFV % DM<br />
Vegetative: May 25 th 5.40 0.07 0.65 0.07 5.08 11.35 16.13 15.91 0.28 0.19 28.00 21.80<br />
Pre-Boot: June 2 nd 3.97 0.07 0.52 0.09 6.12 11.98 13.90 13.49 0.23 0.15 22.00 20.75<br />
Boot: June 16 th 3.16 0.07 0.71 0.09 8.10 15.82 16.40 15.88 0.27 0.18 24.81 25.62<br />
Anthesis: June 28 th 3.24 0.07 0.50 0.13 9.73 17.34 17.00 17.00 0.28 0.18 27.00 28.61<br />
Ripening: July 26 th 2.79 0.06 0.49 0.18 12.57 24.31 21.00 20.00 0.34 0.22 30.00 35.77<br />
93
Siberian Wildrye, Elymus sibiricus<br />
Moisture Free<br />
Growth Phase % CP % P % K % Ca % ADF % NDF<br />
% IVDMD<br />
(est.)<br />
% TDN<br />
Metab.<br />
Energy<br />
(MCal / Lb)<br />
Net<br />
Energy RFV % DM<br />
Vegetative: May 25 th 26.48 0.26 2.97 0.35 22.95 50.23 75 73 1.28 0.88 132 97.03<br />
Pre-Boot: June 14 th 13.99 0.21 2.09 0.32 27.23 55.55 70 68 1.17 0.79 113 95.16<br />
Boot: June 30 th 10.43 0.15 1.39 0.26 34.85 63.34 60 57 0.96 0.62 91 95.27<br />
Anthesis: July 6 th 12.86 0.16 1.33 0.35 32.17 61.60 63 61 1.03 0.68 96 98.19<br />
Ripening: July 28 th 8.87 0.15 1.01 0.33 34.94 62.58 60 57 0.96 0.62 92 97.95<br />
As Fed<br />
Growth Phase % CP % P % K % Ca % ADF % NDF<br />
% IVDMD<br />
(est.)<br />
Ripening: July 28 th 3.92 0.07 0.45 0.15 15.43 27.64 27 25 0.42 0.27 40 44.17<br />
94<br />
% TDN<br />
Metab.<br />
Energy<br />
(MCal / Lb)<br />
Net<br />
Energy RFV % DM<br />
Vegetative: May 25 th 5.67 0.06 0.64 0.08 4.92 10.76 16.07 15.64 0.27 0.19 28.00 21.43<br />
Pre-Boot: June 14 th 3.49 0.05 0.52 0.08 6.80 13.88 17.49 16.99 0.29 0.20 28.31 24.98<br />
Boot: June 30 th 2.65 0.04 0.35 0.07 8.85 16.08 15 14 0.24 0.16 23 25.39<br />
Anthesis: July 6 th 4.63 0.06 0.48 0.13 11.58 22.18 23 22 0.37 0.24 35 36.01
Slender Wheatgrass, Elymus trachycaulus<br />
Moisture Free<br />
Growth Phase % CP % P % K % Ca % ADF % NDF<br />
% IVDMD<br />
(est.)<br />
% TDN<br />
Metab.<br />
Energy<br />
(MCal / Lb)<br />
Net<br />
Energy RFV % DM<br />
Vegetative: May 27 th 23.43 0.23 2.67 0.34 20.36 39.09 77 75 1.32 0.91 174 96.04<br />
Pre-Boot: June 14 th 19.30 0.24 2.95 0.31 27.00 50.99 70 68 1.18 0.80 124 95.84<br />
Boot: June 28 th 20.02 0.25 2.03 0.48 27.69 51.87 69 67 1.16 0.78 121 95.20<br />
Anthesis: July 6 th 18.20 0.22 2.13 0.39 34.82 65.57 60 57 0.96 0.62 88 98.20<br />
Ripening: July 28 th 16.81 0.24 1.89 0.49 35.73 62.64 59 56 0.94 0.61 91 97.82<br />
As Fed<br />
Growth Phase % CP % P % K % Ca % ADF % NDF<br />
% IVDMD<br />
(est.)<br />
% TDN<br />
Metab.<br />
Energy<br />
(MCal / Lb)<br />
Net<br />
Energy RFV % DM<br />
Vegetative: May 27 th 5.45 0.05 0.62 0.08 4.73 9.08 17.89 17.43 0.31 0.21 40.00 23.24<br />
Pre-Boot: June 14 th 4.28 0.05 0.65 0.07 5.99 11.30 15.52 15.08 0.26 0.18 27.45 22.17<br />
Boot: June 28 th 4.95 0.06 0.50 0.12 6.85 12.83 17.00 17.00 0.29 0.19 30.00 24.73<br />
Anthesis: July 6 th 4.41 0.05 0.52 0.09 8.44 15.89 15.00 14.00 0.23 0.15 21.00 24.24<br />
Ripening: July 28 th 5.53 0.08 0.62 0.16 11.75 20.26 19.00 18.00 0.31 0.20 30.00 32.89<br />
95
Smooth Brome, Bromus inermis<br />
Moisture Free<br />
Growth Phase % CP % P % K % Ca % ADF % NDF<br />
% IVDMD<br />
(est.)<br />
% TDN<br />
Metab.<br />
Energy<br />
(MCal / Lb)<br />
Net<br />
Energy RFV % DM<br />
Vegetative: July 20 th 27.33 0.39 3.51 0.33 24.46 48.24 73 71 1.24 0.85 135 97.44<br />
Pre-Boot: August 8 th 24.17 0.38 2.19 0.43 28.67 51.2 68 66 1.13 0.76 121 96.73<br />
Boot: August 18 th 17.67 0.31 2.36 0.38 31.53 54.82 64 62 1.05 0.69 109 97.97<br />
Anthesis: September 28 th 8.12 0.14 0.81 0.20 36.30 57.58 58 56 0.93 0.59 98 97.81<br />
* note - sample was not taken from the PMC, instead came from established nearby hayfield.<br />
Samples were collected after 1st hay cutting was harvested<br />
96<br />
As Fed<br />
Growth Phase % CP % P % K % Ca % ADF % NDF % IVDMD<br />
(est.)<br />
% TDN<br />
Metab.<br />
Energy<br />
(MCal / Lb)<br />
Net<br />
Energy RFV % DM<br />
Vegetative: July 20 th 4.91 0.07 0.63 0.06 4.39 8.66 13.00 13.00 0.22 0.15 24.00 17.95<br />
Pre-Boot: August 8 th 3.74 0.06 0.34 0.07 4.43 7.92 11.00 10.00 0.17 0.12 19.00 15.46<br />
Boot: August 18 th 3.41 0.06 0.46 0.07 6.09 10.59 12.00 12.00 0.20 0.13 21.00 19.31<br />
Anthesis: September 28 th 2.84 0.05 0.28 0.07 12.68 20.12 20.00 20.00 0.32 0.21 34.00 34.94<br />
* note - sample was not taken from the PMC, instead came from established nearby hayfield.<br />
Samples were collected after 1st hay cutting was harvested
Spike Trisetum, Trisetum spicatum<br />
Moisture Free<br />
Growth Phase % CP % P % K % Ca % ADF % NDF<br />
% IVDMD<br />
(est.)<br />
% TDN<br />
Metab.<br />
Energy<br />
(MCal / Lb)<br />
Net<br />
Energy RFV % DM<br />
Vegetative: May 27 th 23.86 0.22 1.81 0.33 20.19 43.24 77 76 1.32 0.92 157 96.13<br />
Pre-Boot: May 31 st 18.12 0.27 1.94 0.28 27.64 60.34 69 67 1.16 0.78 104 95.89<br />
Boot: June 16 th 15.17 0.22 1.72 0.24 29.07 60.75 67 65 1.12 0.75 101 95.58<br />
Anthesis: June 28 th 14.15 0.21 1.39 0.29 34.17 63.65 61 58 0.98 0.64 91 95.44<br />
Ripening: July 28 th 9.32 0.19 1.21 0.40 40.25 71.91 54 51 0.84 0.52 74 97.93<br />
As Fed<br />
Growth Phase % CP % P % K % Ca % ADF % NDF<br />
% IVDMD<br />
(est.)<br />
% TDN<br />
Metab.<br />
Energy<br />
(MCal / Lb)<br />
Net<br />
Energy RFV % DM<br />
Vegetative: May 27 th 5.81 0.05 0.04 0.08 4.92 10.53 18.75 18.51 0.32 0.22 38.00 24.35<br />
Pre-Boot: May 31 st 4.38 0.07 0.47 0.07 6.68 14.59 16.68 16.20 0.28 0.19 25.00 24.18<br />
Boot: June 16 th 4.91 0.07 0.56 0.08 9.41 19.67 21.69 21.05 0.36 0.24 32.85 32.38<br />
Anthesis: June 28 th 4.85 0.07 0.48 0.10 11.71 21.81 21.00 20.00 0.34 0.22 31.00 34.27<br />
Ripening: July 28 th 4.33 0.09 0.56 0.19 18.70 33.40 25.00 24.00 0.39 0.24 35.00 46.45<br />
97
Timothy, Phleum pratense<br />
Moisture Free<br />
Growth Phase % CP % P % K % Ca % ADF % NDF % IVDMD<br />
(est.)<br />
% TDN<br />
Metab.<br />
Energy<br />
(MCal / Lb)<br />
Net<br />
Energy RFV % DM<br />
Vegetative: July 20 th 21.43 0.35 3.09 0.29 25.61 52.39 72 70 1.21 0.83 122 97.41<br />
Pre-Boot: August 8 th 21.53 0.34 2.63 0.37 31.42 53.33 64 62 1.05 0.70 112 97.00<br />
Boot: August 18 th 17.42 0.27 2.05 0.27 33.53 55.41 61 59 1.00 0.65 105 97.96<br />
Anthesis: August 23 rd 15.95 0.26 1.71 0.34 33.57 57.38 61 59 0.99 0.65 102 98.01<br />
Ripening: September 28 th 8.12 0.15 1.01 0.11 34.20 57.58 61 58 0.98 0.64 101 97.73<br />
* note - sample was not taken from the PMC, instead came from established nearby hayfield.<br />
Samples were collected after 1st hay cutting was harvested<br />
98<br />
As Fed<br />
Growth Phase % CP % P % K % Ca % ADF % NDF % IVDMD<br />
(est.)<br />
% TDN<br />
Metab.<br />
Energy<br />
(MCal / Lb)<br />
Net<br />
Energy RFV % DM<br />
Vegetative: July 20 th 4.02 0.07 0.58 0.05 4.80 9.82 13.00 13.00 0.23 0.16 23.00 16.74<br />
Pre-Boot: August 8 th 3.43 0.05 0.42 0.06 5.01 8.50 10.00 10.00 0.17 0.11 18.00 15.94<br />
Boot: August 18 th 3.71 0.06 0.44 0.06 7.14 11.8 13 13 0.21 0.14 22 21.3<br />
Anthesis: August 23 rd 3.24 0.05 0.35 0.07 6.82 11.66 12.00 12 0.20 0.13 21.00 20.32<br />
Ripening: September 28 th 2.51 0.05 0.31 0.03 10.56 17.78 19 18 0.3 0.2 31 30.88<br />
* note - sample was not taken from the PMC, instead came from established nearby hayfield.<br />
Samples were collected after 1st hay cutting was harvested
Tufted Hairgrass, Deschampsia cespitosa<br />
Moisture Free<br />
Growth Phase % CP % P % K % Ca % ADF % NDF<br />
% IVDMD<br />
(est.)<br />
% TDN<br />
Metab.<br />
Energy<br />
(MCal / Lb)<br />
Net<br />
Energy RFV % DM<br />
Vegetative: May 31 st 20.54 0.27 2.07 0.34 24.64 51.59 73 71 1.24 0.85 126 95.85<br />
Pre-Boot: June 14 th 12.67 0.27 2.15 0.34 31.87 60.86 64 61 1.04 0.69 98 95.73<br />
Boot: June 16 th 13.11 0.31 2.79 0.40 30.38 57.84 66 63 1.08 0.72 105 95.84<br />
Anthesis: June 28 th 10.89 0.26 1.63 0.30 35.69 66.71 59 56 0.94 0.61 85 95.28<br />
Ripening: July 28 th 10.09 0.18 1.42 0.46 35.95 66.50 59 56 0.93 0.60 85 97.95<br />
As Fed<br />
Growth Phase % CP % P % K % Ca % ADF % NDF<br />
% IVDMD<br />
(est.)<br />
% TDN<br />
Metab.<br />
Energy<br />
(MCal / Lb)<br />
Net<br />
Energy RFV % DM<br />
Vegetative: May 31 st 5.18 0.07 0.52 0.09 6.22 13.02 18.42 17.91 0.31 0.21 32.00 25.23<br />
Pre-Boot: June 14 th 2.71 0.06 0.46 0.07 6.83 13.04 13.71 13.07 0.22 0.15 20.98 21.42<br />
Boot: June 16 th 3.26 0.08 0.69 0.10 7.55 14.38 16.41 15.66 0.27 0.18 26.08 24.86<br />
Anthesis: June 28 th 3.32 0.08 0.50 0.09 10.89 20.35 18 17 0.29 0.19 26 30.50<br />
Ripening: July 28 th 3.57 0.06 0.5 0.16 12.71 23.51 21 20 0.33 0.21 30 35.35<br />
99
Appendix B: Seed Specifications / Certification<br />
Seed Specifications<br />
Quality seed is critical to success.<br />
Specifying “certified” seed<br />
assures quality because the seed<br />
must meet certain standards for<br />
germination and purity; certification<br />
also provides some assurance<br />
<strong>of</strong> genetic quality.<br />
Some native seed species are<br />
not available as certified seed.<br />
Seed quality can still be ascertained by examining percent<br />
germination and percent purity; information that will be<br />
clearly labeled for any seed sold in <strong>Alaska</strong>. This labeling is<br />
required by 11 AAC, chapter 34: Seed Regulations.<br />
The true cost <strong>of</strong> seed can be determined by the Pure<br />
Live Seed calculation. To calculate Pure Live Seed (PLS),<br />
use the equation:<br />
The true price <strong>of</strong> seed, then, can be determined<br />
using the equation:<br />
These calculations can increase the accuracy <strong>of</strong> bid comparisons.<br />
PLS price is a good method <strong>of</strong> comparing different<br />
seed lots at time <strong>of</strong> purchase. All seed sold or used in<br />
the state <strong>of</strong> <strong>Alaska</strong> must also be<br />
free <strong>of</strong> noxious weeds, under 11<br />
AAC 34.075. This is noted on seed<br />
tags, along with germination and<br />
purity.<br />
Seeding Rates<br />
When determining seeding<br />
rates, divide the desired seeding<br />
rate by the percent germination<br />
<strong>of</strong> the seed being used. For example,<br />
to achieve a 10 lbs/ acre seeding rate with seed having<br />
an 80% PLS (determined using the equation above), 10<br />
lbs / .80 indicates that 12.5 lbs / acre should be used. If<br />
problems occur or questions arise regarding seed, call the<br />
<strong>Alaska</strong> <strong>Plant</strong> <strong>Materials</strong> <strong>Center</strong> at (907) 745-4469.<br />
Seed stored on site should be kept cool, dry, and in rodent-free<br />
areas. Remember seed is a living commodity.<br />
A bag may contain seed; however some percentage may<br />
be dead husks - the equivalent <strong>of</strong> cadavers. Always buy<br />
seed based on the PLS Calculation.<br />
<strong>Alaska</strong> Certified seed tags<br />
Pre-certified class seed tags<br />
Certified Seed<br />
The term “certified seed” can<br />
be used in two different situations.<br />
The <strong>of</strong>ficial use <strong>of</strong> the term<br />
Certified seed (with a capital C)<br />
is to describe seed that has been<br />
grown under the rules <strong>of</strong> the<br />
Seed Certification Program. Certified<br />
seed is the usual commercial<br />
category <strong>of</strong> seed. Its ancestry<br />
can be traced back to Registered<br />
Class or Foundation Class seed. In addition, Certified seed<br />
must meet various standards <strong>of</strong> purity and germination.<br />
These standards are a means <strong>of</strong> verifying authenticity <strong>of</strong> a<br />
seed source. All <strong>Alaska</strong> developed seed varieties or cultivars<br />
can be sold as either Certified or common.<br />
Seed can also be certified (without a capital C) to be free<br />
<strong>of</strong> weeds or as meeting a minimum germination standard<br />
(11 AAC 34.075). This has nothing to do with variety identification<br />
— it simply indicates the quality <strong>of</strong> the seed. In<br />
other words, the buyer knows quality, but has no assurance<br />
<strong>of</strong> type (other than species).<br />
Certified seed should be used when available. Seed<br />
produced in <strong>Alaska</strong> is easy to trace to its origin. It may<br />
be classified as common (uncertified) ‘Arctared’, but it is<br />
still ‘Arctared’. Minimum purities and germination should<br />
always be stated with orders. Common seed is a usable<br />
product and may be used to meet demands. Common<br />
seed should meet Certified standards<br />
with regard to germination<br />
and purity, although these standards<br />
may need to be relaxed<br />
to acquire sufficient material for<br />
a large job. Lower germination<br />
rates can be overcome by increasing<br />
the seeding rate. Lower purities,<br />
however, should be avoided,<br />
as weeds can become a problem.<br />
Other Certification Classes<br />
When purchasing seed, a buyer should be aware <strong>of</strong> the<br />
differences between certification classes. Many new<br />
sources <strong>of</strong> native seed are being developed in <strong>Alaska</strong>.<br />
Generally, these will not be sold as Certified seed. They<br />
may carry the following designations: ‘Source Identified’,<br />
‘Tested’, or ‘Selected’. These classes will be consistent<br />
with the certification standards <strong>of</strong> germination and<br />
purity, however the term ‘Certified seed’ will not apply.<br />
These classes are called ‘Pre-certified’ classes.
Appendix C: Prohibited & Restricted Noxious Weeds<br />
(A) The following are prohibited noxious weeds:<br />
Photo: Steve Dewey, Utah<br />
<strong>State</strong> University | Bugwood.org<br />
Photo: Elizabeth Bella, USDA<br />
Forest Service | Bugwood.org<br />
Field bindweed (Convolvulus arvensis) Austrian fieldcress (Rorippa austriaca) Galensoga (Galensoga parviflora)<br />
Photo: John D. Byrd, Mississippi<br />
<strong>State</strong> University | Bugwood.org<br />
Photo: Tom Huette, USDA<br />
Forest Service | Bugwood.org<br />
Photo: Ted Bodner, Southern Weed<br />
Science Society | Bugwood.org<br />
Hempnettle (Galeopsis tetrahit) Horsenettle (Solanum carolinense) Russian Knapweed (Acroptilon repens)<br />
Photo: Steve Dewey, Utah<br />
<strong>State</strong> University| Bugwood.org<br />
Photo: Mary Ellen<br />
Harte | Bugwood.org<br />
Photo: Steve Dewey, Utah<br />
<strong>State</strong> University | Bugwood.org<br />
Blue-flowering lettuce (Lactuca pulchella) Quackgrass (Elymus repens) Perennial sowthistle (Sonchus arvensis)<br />
Photo: Michael Rasy, University<br />
<strong>of</strong> <strong>Alaska</strong> | Bugwood.org<br />
Photo: William M. Ciesla, Forest<br />
Health Mgmt. Intl . | Bugwood.org<br />
Photo: Steve Dewey, Utah<br />
<strong>State</strong> University | Bugwood.org<br />
Leafy spurge (Euphorbia esula) Canada thistle (Cirsium arvense) Whitetops and its varieties (Cardaria<br />
draba, C. pubescens, Lapidium latifolium)<br />
Photo: Mary Ellen<br />
Harte | Bugwood.org<br />
Photo: John D. Byrd, Mississippi<br />
<strong>State</strong> University | Bugwood.org<br />
Purple loosestrife (Lythrum salicaria)<br />
Photo: Michael Shephard, USDA<br />
Forest Service | Bugwood.org<br />
Orange hawkweed (Hieracium aurantiacum)<br />
Statutory Authority:<br />
AS 03.05 010<br />
AS 03.05.030<br />
AS 44.37.030<br />
11AAC 34.020<br />
This list is available online, at:<br />
http://dnr.alaska.gov/ag/akpmc/<br />
invasives/pdf/noxious-weeds.pdf
(B) The following are restricted noxious weeds,<br />
with their maximum allowable tolerances:<br />
Photo: Steve Dewey, Utah<br />
<strong>State</strong> University | Bugwood.org<br />
Annual bluegrass (Poa annua),<br />
90 seeds per pound<br />
Photo: Elena Rostunova<br />
Blue burr (Lappula echinata),<br />
18 seeds per pound<br />
Photo: Joseph M. DiTomaso, University<br />
<strong>of</strong> California Davis | Bugwood.org<br />
Mustard (Brassica juncea, Sinapis<br />
arvensis), 36 seeds per pound<br />
Photo: Steve Dewey, Utah <strong>State</strong><br />
University | Bugwood.org<br />
Wild oats (Avena fatua),<br />
seven seeds per pound<br />
Photo: Chris Evans, River<br />
to River CWMA | Bugwood.org<br />
Buckhorn plantain (<strong>Plant</strong>ago sp.),<br />
90 seeds per pound<br />
Photo: Joseph M. DiTomaso, University<br />
<strong>of</strong> California Davis | Bugwood.org<br />
Radish (Raphanus raphanistrum),<br />
27 seeds per pound<br />
Photo: Michael Shephard, USDA<br />
Forest Service | Bugwood.org<br />
Yellow toadflax (Linaria vulgaris),<br />
one seed per pound<br />
Photo: Michael Rasy,<br />
University <strong>of</strong> <strong>Alaska</strong> | Bugwood.org<br />
Tufted vetch (Vicia cracca),<br />
two seeds per pound<br />
Photo: Richard Old, XID<br />
Services Inc. | Bugwood.org<br />
Wild buckwheat (Polygonum convolvulus),<br />
two seeds per pound<br />
Statutory Authority:<br />
AS 03.05 010<br />
AS 03.05.030<br />
AS 44.37.030<br />
11AAC 34.020<br />
(In effect before 7/28/59; am 3/2/78, Reg. 65; am 10/28/83, Reg. 88)<br />
This list is available online, at:<br />
http://dnr.alaska.gov/ag/akpmc/invasives/pdf/noxious-weeds.pdf
Glossary<br />
Photo: James McCormick<br />
Round bale <strong>of</strong> Smooth Brome and Timothy hay<br />
Bunch grass growing in coarse textured soil<br />
Term<br />
Acid Detergent Fiber<br />
(ADF):<br />
Age Class:<br />
Agronomy:<br />
Allelopathy:<br />
Amino Acids:<br />
Annuals:<br />
Anthesis:<br />
Anaerobic:<br />
Anti-quality<br />
Components:<br />
Autotoxicity:<br />
Auriculated:<br />
Sod grass farm near Palmer, <strong>Alaska</strong><br />
Definition<br />
The indigestible portion <strong>of</strong> a forage sample. It is measured much like NDF except that a forage<br />
sample is boiled in an acidic detergent. The boiling removes sugars, fats, starches, proteins, and<br />
hemicellulose. The amount <strong>of</strong> ADF residue is inversely related to energy so high quality forages<br />
have low amounts <strong>of</strong> ADF.<br />
A descriptive term to indicate the relative age <strong>of</strong> plants.<br />
The application <strong>of</strong> soil and plant sciences to soil management and crop production.<br />
Chemical inhibition <strong>of</strong> one plant by another.<br />
Amino groups with at least one carboxyl group, linked together in a definite pattern to form a<br />
protein molecule.<br />
<strong>Plant</strong>s that die after completing their life cycle within one growing season.<br />
Stage in floral development when pollen is shed.<br />
Living in the absence <strong>of</strong> free oxygen; the opposite <strong>of</strong> aerobic.<br />
Compounds like alkaloids, tannins, and other toxic compounds that cause problems in animal<br />
health and performance. Even if <strong>of</strong>ten present in small amounts, they can override the nutritional<br />
value <strong>of</strong> forage, even when the forage tests high for CP and TDN. Tall fescue endophyte contains<br />
a major anti-quality component. Sericea lespedeza is high in tannins, especially when mature.<br />
A specific type <strong>of</strong> allelopathy where the presence <strong>of</strong> adult plants <strong>of</strong> a species interferes with the<br />
germination and development <strong>of</strong> seedlings from that species.<br />
Having ear or hair like parts or extensions.<br />
103
104<br />
Term<br />
Definition<br />
Biennials: A plant that completes its life cycle in two years.<br />
Bloat:<br />
Boot Stage:<br />
Excessive accumulation <strong>of</strong> gases in the rumen (stomach) <strong>of</strong> an animal.<br />
Growth stage when the sheath <strong>of</strong> the upper most leaf encloses a grass reproductive seedhead.<br />
Bunch Grass: Grass that produces a tufted growth or clump that gradually enlarges as tillers are produced<br />
around the outer edge <strong>of</strong> the tuft. (i.e. Timothy).<br />
Carbohydrate: Carbohydrates consist <strong>of</strong> simple and/or complex sugar molecules that function as readily<br />
available energy. Examples are fructose, glucose, sucrose, starch and hemi-cellulose.<br />
Caryopses: The grain or fruit <strong>of</strong> grasses.<br />
Cellulose: Major skeletal material in the cell wall <strong>of</strong> plants. Provides fiber for diet but minimal nutrition.<br />
Compound Leaf: A leaf separated into two or more leaflets.<br />
Cool Season <strong>Plant</strong>: A plant that makes its major growth during the cool part <strong>of</strong> the year, mainly in the spring but in<br />
some localities in the fall or winter.<br />
Crude Protein (CP): The total amount <strong>of</strong> protein, some <strong>of</strong> which is insoluble or non-degradable. Crude protein is<br />
measured in the laboratory by first measuring nitrogen and then multiplying by 6.25.<br />
Cud: Food regurgitated from the first stomach to the mouth <strong>of</strong> a ruminant and chewed again for<br />
further breakdown.<br />
Cultivar: The international term cultivar denotes an assemblage <strong>of</strong> cultivated plants that is clearly<br />
distinguished by any characters (morphological, physiological, cytological, chemical, or other)<br />
and when reproduced (sexually or asexually), retains its distinguished characters.<br />
Culm: The stem <strong>of</strong> a grass that has elongated internodes between nodes.<br />
Decreaser: <strong>Plant</strong> that is gradually replaced by other species in a stand.<br />
Decumbent: Lying or growing along the ground, but erect at or near the apex <strong>of</strong> some stems.<br />
Dehiscent: Splitting open along seed capsule or pod to emit individual seeds.<br />
Digestible Dry Matter Digestibility estimated from ADF. The higher the ADF, the lower the digestibility.<br />
(DDM):<br />
Drought Tolerance: The ability <strong>of</strong> a plant to withstand lack <strong>of</strong> rainfall for a portion <strong>of</strong> the year or for extended periods,<br />
sometimes multiple years.<br />
Dry Matter (DM): The percent <strong>of</strong> the forage that is not water.<br />
Dry matter Intake<br />
(DMI):<br />
<strong>Forage</strong>:<br />
Although it can be determined from feeding trials, it is usually estimated from NDF. The higher<br />
the NDF, the lower the intake.<br />
Herbaceous grasses and legumes available and acceptable to grazing animals.<br />
Elliptic: Longer than wide with rounded ends; rounded oval.<br />
Ellipsoidal: Three-dimensional object that is widest at the middle, tapers to ends <strong>of</strong> the same size, and is<br />
round in cross section.<br />
Endophyte: An organism (fungus, bacteria, nematode, etc...) growing inside <strong>of</strong> a plant.<br />
Ensile: To store forage as silage.<br />
Friable Soil: A soil with a readily crumbled or broken apart surface.<br />
Glabrous: Without hair, smooth.<br />
Glumes: A pair <strong>of</strong> bracts found at the base <strong>of</strong> a grass spikelet and not containing pistils or stamens;<br />
occasionally one or both glumes are absent.<br />
Haylage: Product resulting from ensiling forage with about 20-40% moisture, in the absence <strong>of</strong> oxygen.<br />
Hemicellulose: Polysaccharide fraction existing largely in the secondary cell wall <strong>of</strong> the plant.<br />
Herbaceous: <strong>Plant</strong>s having aerial stems that die back to the soil level each year while the underground parts<br />
remain alive.<br />
Introduced: A species not part <strong>of</strong> the original fauna or flora <strong>of</strong> the area in question, but introduced from<br />
another geographical region through human activity.<br />
Keel: Projecting central rib usually found on the back <strong>of</strong> an organ and resembling a boat’s keel.
Term<br />
Lanceolate:<br />
Lemma:<br />
Lignin:<br />
Lodging:<br />
Meadow:<br />
Metabolic Energy:<br />
Definition<br />
Much longer than wide, widest below the middle and tapering toward both ends, sometimes<br />
rounded at the base.<br />
Lower bract <strong>of</strong> the grass floret, placed above the glumes with its back toward the outside <strong>of</strong> the<br />
spikelet or away from the rachilla.<br />
Complex non-carbohydrate strengthening material in the thickened cell walls <strong>of</strong> plants;<br />
practically indigestible.<br />
Collapse <strong>of</strong> top heavy plants, particularly grain crops, due to excessive growth or pressure from<br />
wind and rain.<br />
An area <strong>of</strong> perennial herbaceous vegetation, usually grasses or grass like, used primarily for hay<br />
production.<br />
Food intake gross energy minus fecal energy, minus energy in the gaseous products <strong>of</strong> digestion,<br />
minus urinary energy.<br />
Monoculture:<br />
Native <strong>Plant</strong> / Species:<br />
Cultivation <strong>of</strong> a single species to the exclusion <strong>of</strong> other potential crops.<br />
A plant that occurs naturally in a particular region, state, ecosystem, and habitat without direct<br />
or indirect human actions. Climate, soil, and biotic factors determine its presence and evolution<br />
in an area.<br />
Net Energy (NE): Calculated from ADF. Net energy estimates are used largely by dairy producers in ration balancing<br />
for maintenance (NEm), gain (NEg), and lactation (NEl).<br />
Neutral Detergent<br />
Fiber (NDF):<br />
An estimate <strong>of</strong> the portion <strong>of</strong> a forage sample that is in the walls <strong>of</strong> a plant cell. It is measured<br />
by boiling a forage sample in a neutral detergent and weighing the residue. Boiling removes the<br />
soluble components <strong>of</strong> the cell - most <strong>of</strong> the sugars, fats, starches, and proteins. The remaining<br />
residue is composed <strong>of</strong> cell walls made up <strong>of</strong> cellulose, hemicellulose, and lignin. The amount <strong>of</strong><br />
NDF residue is inversely related to forage intake. High quality forages have low amounts <strong>of</strong> NDF.<br />
Nitrate Poisoning:<br />
Node:<br />
Oblique:<br />
Condition sometimes resulting when ruminants ingest nitrates (NO3). The rumen bacteria<br />
convert to nitrite (NO2); the nitrites compete with oxygen, tying up the oxygen-carrying<br />
mechanism in the blood and causing the animal to suffocate.<br />
Joint on a stem, represented by position <strong>of</strong> origin <strong>of</strong> a leaf or bud<br />
Lop-sided, one side <strong>of</strong> leaf base is larger, wider or more rounded than the other.<br />
Oblong: Two to four times longer than broad.<br />
Obovate: Inversely ovate, attached at the narrow end.<br />
Obovoid: Leaf shape that is inversely egg-shaped or ovoid.<br />
Obtuse: Blunt or rounded at the tip, with sides coming together at an angle greater than 90 °.<br />
Oval:<br />
Ovate:<br />
Ovoid:<br />
Palatability:<br />
Twice as long as broad, widest at the middle, both ends rounded.<br />
Egg shaped in outline, narrower at the tip and attached at the larger end. Applies to flat surfaces.<br />
Egg shaped; Applies to three-dimensional structures.<br />
The relish with which a particular species or plant part is consumed by an animal.<br />
Palea: Upper bract <strong>of</strong> the floret, placed above the lemma with its back toward the rachilla.<br />
Palmate: With three or more lobes, veins or leaflets arising from one point, <strong>of</strong>ten five to seven.<br />
Pasture: Grazing land comprised <strong>of</strong> introduced or domesticated native forage species that are used<br />
primarily for the production <strong>of</strong> livestock. These lands receive periodic renovation and/or cultural<br />
treatment (such as tillage, fertilization, mowing, weed control), and may be irrigated.<br />
Perennials: <strong>Plant</strong>s that normally live for more than two years.<br />
Petiole: The stalk that joins a leaf to stem; (leaf stalk).<br />
Petiolule:<br />
pH:<br />
Pilose:<br />
The stalk <strong>of</strong> a leaflet <strong>of</strong> a compound leaf.<br />
A measure <strong>of</strong> the hydrogen-ion concentration in a solution, expressed on a negative log 10 scale<br />
<strong>of</strong> 0 (highly acidic) to 14 (highly basic) with pH <strong>of</strong> 7 being neutral. See charts on page 23.<br />
Long s<strong>of</strong>t hairs.<br />
105
106<br />
Term<br />
Pinnate:<br />
Prostrate:<br />
Protein:<br />
Pure Live Seed:<br />
Racemes:<br />
Rachilla:<br />
Relative Feed Value<br />
(RFV):<br />
Rhizome:<br />
Rills:<br />
Rumen:<br />
Ruminant:<br />
Rust:<br />
Saline Soil:<br />
Definition<br />
Compound leaf with leaflets arranged on opposite side <strong>of</strong> common axis.<br />
Lying flat upon the ground and growing horizontally<br />
Essential part <strong>of</strong> all living matter and animal feed, consisting <strong>of</strong> a complex combination <strong>of</strong> amino<br />
acids, always containing carbon, hydrogen, oxygen, and nitrogen.<br />
The portion (percentage) <strong>of</strong> the seed lot that is pure and viable.<br />
Pedicled flowers along one stem.<br />
Axis <strong>of</strong> a grass spikelet; a stalk-like, sometimes jointed, structure extending above and between<br />
the glumes and bearing the florets.<br />
An estimate <strong>of</strong> hay quality. It is calculated from NDF, ADF, and crude protein with emphasis on<br />
NDF. The RFV grading system assumes that full bloom alfalfa has a value <strong>of</strong> 100. Immature alfalfa<br />
has a higher RFV and stemmy alfalfa has a lower RFV.<br />
Underground stem, usually horizontal and capable <strong>of</strong> producing new shoots and roots at the<br />
nodes.<br />
Long, straight and narrow depressions on a soil surface, caused by water erosion.<br />
The large, first compartment <strong>of</strong> the stomach <strong>of</strong> a ruminant from which ingested food is<br />
regurgitated for chewing and in which digestion is aided by the symbiotic action <strong>of</strong> microbes.<br />
Even toed, ho<strong>of</strong>ed mammal that chews the cud and has a four chambered stomach.<br />
A parasitic fungi that is harmful to other plants.<br />
A soil condition in which soluble salts are present in the soil in sufficient quantities to affect the<br />
ability <strong>of</strong> plants to absorb water from the soil.<br />
Salt Tolerance: Relative ability <strong>of</strong> a plant to reproduce and grow under saline conditions.<br />
Scabrous: Slightly roughened.<br />
Selected Class Release: Phenotypically selected plants <strong>of</strong> untested parentage that have promise, but no pro<strong>of</strong> <strong>of</strong> genetic<br />
superiority <strong>of</strong> distinctive traits.<br />
Seedhead: The inflorescence (flowering part) <strong>of</strong> a grass where the seed will develop.<br />
Shade Tolerance: Relative ability <strong>of</strong> a plant to reproduce and grow under shade.<br />
Silage: <strong>Forage</strong> preserved in a succulent condition by partial fermentation.<br />
Sod grass: Grass that is spread vegetatively by the growth <strong>of</strong> underground stems, called rhizomes. (i.e.<br />
Smooth Brome).<br />
Soil Texture: The relative portion (percentage) <strong>of</strong> sand, silt and clay in the soil.<br />
Stage <strong>of</strong> Maturity: The development <strong>of</strong> a forage used to describe a point in time in its progress toward maturity and<br />
readiness for harvest <strong>of</strong> forage, hay, or seed.<br />
Stipules: Very small stalk <strong>of</strong> an organ; a small prolongation <strong>of</strong> a rachilla beyond the uppermost floret in<br />
the spikelets <strong>of</strong> some grasses.<br />
Stolon: A horizontal stem which grows along the surface <strong>of</strong> the soil and roots at the nodes.<br />
Stools: A stump <strong>of</strong> root stock producing shoots or suckers.<br />
Swath: A strip <strong>of</strong> cut herbage lying on the stubble left by a cutter bar, blade, flail, rotary drum, mower,<br />
mower-conditioner, binder, swather, or small grain head on a combine.<br />
Taproot: A plant root system dominated by a large primary root, normally growing straight downward,<br />
from which most <strong>of</strong> the smaller roots spread out laterally.<br />
Total Digestible<br />
Nutrients (TDN):<br />
Trifoliate:<br />
Ungulate:<br />
Vegetative:<br />
Water Tolerance:<br />
Yield:<br />
An estimate <strong>of</strong> digestible forage. TDN is not measured directly but is calculated from ADF. TDN<br />
is used by many beef producers to balance rations.<br />
A pinnate leaf form with three leaflets.<br />
A ho<strong>of</strong>ed animal; includes ruminants, but also includes horses and swine.<br />
Term used to designate stem and leaf development in contrast to flower and seed development.<br />
Relative ability <strong>of</strong> a plant to reproduce and grow under saturated or flooded conditions.<br />
The quantity <strong>of</strong> a product in a given space and/or time. Also known as the harvested portion <strong>of</strong><br />
a product.
Works Cited<br />
Adesogan, A.T., & Newman, Y.C. (2010). Silage Harvesting, Storing, and Feeding. IFAS Extension,<br />
University <strong>of</strong> Florida, Gainesville, Florida.<br />
Retrieved from http://edis.ifas.ufl.edu/ag180<br />
Harper, J.L. (1977). Population Biology <strong>of</strong> <strong>Plant</strong>s, New York: Academic Press.<br />
Pieper, R.D. 1978. Measurement Techniques for Herbaceous and Shrubby Vegetation. New<br />
Mexico <strong>State</strong> University: Las Cruces, NM.<br />
Ogle, D. , St. John, L., Cornwell, J., Stannard, M. , Holzworth, L. (2008 January). Pasture and<br />
Range Seedings, Planning-Installation-Evaluation-Management. <strong>Plant</strong> <strong>Materials</strong> Technical<br />
Note 10. USDA- Natural Resources Conservation Service, Boise, Idaho, Bozeman, Montana,<br />
Spokane, Washington.<br />
Heady, F. H., & Child, D. R. (1994) Rangeland Ecology & Management. Westview Press, Inc.<br />
Boulder, CO<br />
Holechek, L. J., Pieper, D. R., Herbel, H. C. (2004) Range Management Principles and Practices<br />
Fifth Edition. Pearson Prentice Hall. Upper Saddle River, NJ<br />
Huggins, R. D., Reganold, P. J. (2008) No-Till: the Quiet Revolution. in Scientific American,<br />
July 2008 issue, 8p. (p. 70-77)<br />
Retrieved from: http://research.wsu.edu/resources/files/no-till.pdf<br />
Livestock Production Program (2006). Silage. Livestock Production Programme (LPP), Department<br />
for International Development, UKAID.<br />
Retreived from http://www.smallstock.info/tools/feed/silage/silage1.htm<br />
Livestock Production Program (2006). Hay Making. Livestock Production Programme (LPP),<br />
Department for International Development, UKAID.<br />
Retreived from http://www.smallstock.info/tools/feed/hay/haymaking1.htm#mycotoxins<br />
Mhere, O., Maasdorp, B., Titterton, M. (2002). <strong>Forage</strong> Production and Conservation <strong>Manual</strong>:<br />
UK Dept. for International Development, Livestock Production Research Programme (LPP)<br />
Retrieved from http://www.smallstock.info/research/reports/R7010/R7010-<strong>Manual</strong>.pdf<br />
Ogle, D., Englert, J., Gibbs, J. (2001 January). Glossary <strong>of</strong> Terms for Use in <strong>Plant</strong> <strong>Materials</strong>.<br />
Retrieved from http://plant-materials.nrcs.usda.gov/pubs/idpmctn280101.pdf<br />
Quarberg, D. (n.d.). Buyer’s Guide to <strong>Forage</strong> Products. Cooperative Extension Service, University<br />
<strong>of</strong> <strong>Alaska</strong> Fairbanks, Fairbanks, <strong>Alaska</strong>.<br />
Retrieved from http://www.uaf.edu/ces/publications-db/catalog/anr/FGV-00145B.pdf<br />
Saskatchewan Ministry <strong>of</strong> Agriculture. (2011). 2011 <strong>Forage</strong> Crop Production Guide. 20 p.<br />
Retrieved from http://www.agriculture.gov.sk.ca/<strong>Forage</strong>-Crop-Production-Guide.<br />
Sullivan, P. (2003). Conservation Tillage. National Sustainable Agricultural Information Service<br />
Retrieved from https://attra.ncat.org/attra-pub/conservationtillage.html<br />
Whisenant, S. (1999). Repairing Damaged Wildlands - A Process-Orientated, Landscape-<br />
Scale Approach. (5 th ed.). New York: Cambridge University Press<br />
Vallentine, J.F. (1989). Range Developments and Improvements. New York: Academic Press<br />
107
The <strong>Alaska</strong> <strong>Forage</strong> <strong>Manual</strong> was released by the <strong>Alaska</strong> <strong>Plant</strong> <strong>Materials</strong> <strong>Center</strong>,<br />
a part <strong>of</strong> the Department <strong>of</strong> Natural Resources, Division <strong>of</strong> Agriculture. This<br />
publication is intended for use by forage producers, users and the general<br />
public. It was produced at a cost <strong>of</strong> $15.45 per copy, and printed in Anchorage,<br />
<strong>Alaska</strong>. This publication is also available online, at plants.alaska.gov.<br />
Temperature Temperature Volume Length Length<br />
C F C F Liters Quarts cm inch cm feet<br />
100 212 5 41 1 1.1 2.5 1 300 10<br />
90 194 0 32 2 2.1 5 2 400 13<br />
80 176 -5 23 3 3.2 10 4 500 16<br />
70 158 -10 14 4 4.2 20 8 1,000 33<br />
60 140 -15 5 5 5.3 30 12<br />
50 122 -20 -4 6 6.3 40 16<br />
40 104 -25 -13 7 7.4 50 20<br />
35 95 -30 -22 8 8.5 60 24<br />
30 86 -40 -40 9 9.5 70 28<br />
25 77 80 32<br />
20 68 90 36<br />
15 59 100 39<br />
■ Conversion Chart<br />
10 50 200 79<br />
■Metric Conversions Chart<br />
To convert this to this multiply by<br />
Metric Length Conversions<br />
inches . . . . . . . . . . . . . . . . . . . . . . millimeters (mm) 25.4<br />
feet. To convert . . . . . . this . . . . . . . . . . . . . . . . . . centimeters to (cm) this multiply 39 by<br />
yards To convert<br />
Length<br />
. . . . . this . . . . . . . . . . . . . . . . . . . . . . . meters to (m) this multiply .91 by<br />
milliliters<br />
miles<br />
inches<br />
. . .<br />
. . . . . . . . . . . . . . . . . . . . . millimeters .<br />
kilometers<br />
. . fluid ounces (mm)<br />
(km)<br />
25.4<br />
1.61<br />
.03<br />
liters. millimeters feet. . . . . . . . . . . . . . . . . . . . . . . . . . centimeters . . . . . . . . inches . pints (cm) 39 2.1 .04<br />
liters yards centimeters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . meters . . . inches quarts (m) 1.06 .4 .91<br />
liters. miles meters . . .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. kilometers ...... ...... . gallons inches (km) 39.37 1.61 .26<br />
cubic meters<br />
millimeters meters . . . . . .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. cubic . . .<br />
inches<br />
yards feet 351.1<br />
.04<br />
cubic centimeters<br />
kilometers. . . . . . . . . . . . . . . . . . . . . . . . cubic . . . .<br />
inches<br />
. yards miles 1.3 .4<br />
.6<br />
Temperature<br />
meters Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . inches 39.37<br />
Fahrenheit meters ounces . . . . . . . . . . . . . . . . . . . . . . . . . . . .. grams(g) .. Celsius . yards 28 1.1 .56 (after subtracting 31)<br />
Celsius kilometers. pounds. . . . .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. kilograms ..... Fahrenheit . . . . miles (kg) 1.82 .45 .6 (then add 32)<br />
Farm Weight<br />
short tons<br />
products<br />
. . . . . . . . . . . . . . . . . . . . . . . . metric tons<br />
pounds ounces kilograms . per . . acre . . . . . . . . . . . . . . . kilograms . . . . . . . . per . . grams(g) . hectare pounds<br />
.9<br />
28 1.14 2.2<br />
short pounds. metric tons . . per ..... acre ........ . . . . . . . . . kilograms ............ kilograms . . per . . . hectare pounds (kg) 2,204.6 2.25 .45<br />
kilograms short metric tons per . . . hectare . . . . . . . . . . . . metric . . . . . tons . . . . per . metric short hectare tons 1.1 .001 .9<br />
kilograms Area per . . . hectare . . . . . . .. . . . . . . . . . pounds . . . . . . . per pounds acre 2.2 .88<br />
tons metric square per tons inches hectare. . . . . . . . . . . . . . . . . square short . . . . . tons . centimeters . . . per pounds acre 2,204.6 6.5 .44<br />
tons metric square per tons feet hectare . . . . . . . . . . . . . . . kilograms . . . . .. square . . per . short hectare meters tons 1,0001.1<br />
.09<br />
Area<br />
square miles . . . . . . . . . . . . . . . . square kilometers 2.6<br />
square<br />
acres . .<br />
inches<br />
. . . . . .<br />
.<br />
.<br />
.<br />
.<br />
.<br />
.<br />
.<br />
.<br />
.<br />
.<br />
.<br />
.<br />
.<br />
.<br />
.<br />
.<br />
.<br />
.<br />
.<br />
.<br />
.<br />
.<br />
.<br />
.<br />
.<br />
.<br />
.<br />
.<br />
square<br />
. . . . . .<br />
centimeters<br />
. . hectares<br />
6.5<br />
.4<br />
Bushel/Weight Conversions<br />
square feet centimeters . . . . . . . . . . . . . . . . . . . . square meters inches .16 .09<br />
Back cover photos:<br />
weight in<br />
weight in<br />
square meters miles . . . . . . . . . . . . . . . . . square . . . square kilometers yards 1.2 2.6<br />
Upper left: A swather mows grass near Palmer;<br />
1 bushel <strong>of</strong>: pounds kilograms<br />
square acres . . kilometers . . . . . . . . .. . . . . . . . . . . . . . . . square . . . hectares miles .4<br />
Upper right: A tedderer lays down hay for drying;<br />
wheat, <strong>Center</strong>: Horses feed on pastureland in Palmer;<br />
square<br />
hectares soybeans,<br />
centimeters<br />
. . . . . . . . potatoes. . . . . . . . . . .<br />
. .<br />
. .<br />
. .<br />
. .<br />
. . . .<br />
square . . . . . .<br />
inches<br />
acres . . . . . . . . . 602.5<br />
27<br />
.16<br />
corn, grain sorghum, rye, flaxseed . . . . . . . . . . . . . . . . . . . 56 Bottom left: 25A mower-conditioner working a hay crop;<br />
square Volumemeters square yards 1.2<br />
Bottom right: Pasture field near Palmer;<br />
beets, carrots. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 23<br />
square teaspoons kilometers . . . . . . . . . . . . . . . . . . . . . . . square . . . milliliters miles 5.4<br />
barley, buckwheat, peaches . . . . . . . . . . . . . . . . . . . . . . . . 48 22<br />
hectares tablespoons . . . ...... .. . . . . . . . . . . . . . . . . . . . . milliliters acres 152.5<br />
Photos: Casey Dinkel, AK PMC<br />
oats, cottonseed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 14<br />
fluid<br />
Volume<br />
ounces . . . . . . . . . . . . . . . . . . . . . . . . milliliters 30<br />
cups.<br />
teaspoons<br />
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .<br />
milliliters<br />
. . . liters<br />
5<br />
.24<br />
pints.<br />
tablespoons<br />
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .<br />
milliliters<br />
. . . liters weight in<br />
15<br />
.47 number