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Establishment of Seeded Grasslands for Wildlife Habitat in the Prairie Pothole Region


Table 9. Seeding rates based on pure lioe seed (PLS) and bulk pounds per acre for introduced cool-season grasses and legume stands in all Major Land Resource Areas in the area of guidelines applicability.

Seed quality**
Species Optimum lb/acre PLS* Percent of full seeding Amount of PLS (lb/acre) Purity Germination Factor*** Bulk seed (lb/acre)
Tall wheatgrass 11.0 0.40 4.5**** 95 85 1.25 5.6*****
Intermediate wheatgrass 10.0 0.38 4.0 95 85 1.25 5.0
Alfalfa 4.4 0.22 1.0 95 90 1.2 1.2
Sweetclover 3.4 0.15 0.5 95 90 1.2 0.6
Totals 10.0 12.4

* Based on recommended full seeding rate of 20 PLS per square foot.

** Percent purity and germination are shown as minimum standards for good
quality seed; use actual purity and germination of seed lot to calculate
bulk pounds.

*** Conversion factor, Table 3 (Conversion factors to determine pounds of
bulk seed needed for 1 pound of pure live seed).

**** Optimum lb/acre PLS x Percent of full seeding = Amount of PLS.

***** Amount of PLS x Seed quality factor = Bulk seed.

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