Trefoil

A fine-stemmed legume with a branching taproot. Adapted to higher elevations. Grows 12" - 30" or more in length from a branching crown; flowers are orange-yellow in groups of 4-8 at end of stems; leaves consist of 5 leaflets alternately arranged, two are at the base near the stem; several seed pods attached to a single point give appearance of bird toes. Short lived perennial that can reseed.

Viking
Norcen
Empire
Birdsfoot
 

 
  Uses: Hay or pasture (non-bloating)

Varieties: The erect or European types have been most satisfactory. These varieties include Viking, Granger, Cascade, and Mansfield. The Empire variety is a decumbent pasture type.

Weight per bushel: 60lbs.

Seeds per pound: 375,000

Germinating time: 7 days

Fertilizer: Zero N--medium soil test lecels; apply 40-70lbs. P205 and 50-80lbs. K20.

pH Range: 5.8-6.5

Soil Adaptation: Does best on well drained soil, but can be grown with impervious subsoils.

Inoculation: Essential. Does not cross-inoculate with other legumes.

Planting: March 1 - April 15 or August 1 - September 1. Should be sown with a grass such as orchardgrass or Kentucky bluegrass. In mixtures 4-8lbs.; alone 8-10lbs.

Method of seeding: 6" - 8" rows or solid seeded. Well prepared, compact seedbed is needed. Cover not more than 1/2" deep. Use cultipacker if surface-seeded. Can also be no-till drilled or frost seeded on killed sod. Poor seedling vigor.

Management: Permit seedlings to become well established before grazing or harvesting. Clip weeds. Use rotational or moderate continuous grazing for pastures.

Harvesting (hay): When in bloom. Avoid clipping close if extremely dry.
 
         
         
       
  Viking
Upright variety for hay and pasture; yields well.
 
 
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  Norcen
Good yielding. Suitable for hay or pasture. Intermediate in height between Viking and Empire in average date of first flowering. Winter hardy.
 
 
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  Empire
A long-lived, low growing pasture type. Germinates and emerges somewhat slowly  in spring. Flowers 5-10 days later than the upright types. Not well suited for hay or silage. Satisfactory for disturbed areas such as soil banks.
 
 
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  Birdsfoot
A fine-stemmed legume with a branching taproot. Adapted to higher elevations. Grows 12" - 30" or more in length from a branching crown; flowers are orange-yellow in groups of 4-8 at end of stems; leaves consist of 5 leaflets alternately arranged, two are at the base near the stem; several seed pods attached to a single point give appearance of bird toes. Short lived perennial that can reseed.
 
 
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