Attachment7SeedMix.pdf

2014 Guideline Seeding Rates

A B C=A x 45 D=C x 43,560 E=D/B

Species

Preferred

Cultivar, Ecotype, or

Germplasm

Common Name % of

Mix

Number

Seed per lb

Num

Seed per ft

Number seed per acre

Drilled

PLS

lb/ac

Cool Season Grasses:

Elymus canadensis

Nassella viridula

Pascopyrum smithii

Mandan

Lodorm

Rodan

Canada wildrye

Green needlegrass

Western wheatgrass

0.15

0.20

0.25

115,000

180,000

112,000

7.5

10.0

12.5

326,700

435,600

544,500

2.8

2.4

4.9

Warm Season Grasses

Bouteloua gracilis

Calamovilfa longifolia

Schizachyrium scoparium

Alternate Warm Season (for one of above species)

Bouteloua curtipendula

Bad River

Goshen

Badlands

Pierre

Blue grama

Prairie sandreed

Little bluestem

Sideoats grama

0.10

750,000

275,000

286,000

180,000

5.0

217,800

0.3

0.8

0.8

1.2

Forbs

Dalea purpurea

OR

Dalea candida

Local

Antelope

Purple prairieclover

White prairieclover

0.04

0.04

290,000

278,000

1.8

1.8

78,408

78,408

0.25

0.3

Helianthus pauciflorus

OR

Solidago rigida

Bismarck

Stiff sunflower

Stiff goldenrod

0.03

85,000

656,000

1.4

60,984

0.7

0.1

Echinacea angustifolia

OR

Ratibida columnifera

Bismarck

Purple coneflower

Prairie coneflower

120,000

737,000

0.5

0.1

Totals 100% 49.6 13.4

Alternate forbs (12.5)

Cultivars listed in the second column are preferred, but local seed collections grown for harvest are acceptable if performance and origin are certified or documented. All seed sources should be derived from local collections or a general area extending 300 miles north and 200 miles south of the area to be reclaimed, and within similar elevation and precipitation zones as western North Dakota, ie from Jamestown, ND on the east to Billings, MT on the west.

A local source for forbs is Prairies Diversified located in Bismarck, ND (Roger Rostvet, 701-258-0181). Other sources may be used but they must be verified as local collections and not obtained from a distant source that are distributed by a local dealer. Copies of seed tags for all planted material must be submitted to the appropriate Medora or McKenzie Ranger Districts.

Planting is based on approximately 50 seed per square foot and/or 12-16 pounds Pure Live Seed (PLS) per acre. Divide desired pounds by percent PLS to derive total bulk pounds seeded for each species.

Seeding depth should be one-half inch or less for drilled seed.

For broadcast seeding, multiply pounds of each species seeded by 1.5. Seed bed should be thoroughly worked and firm.

Best average seeding dates for cool and warm season mixes is May – June. Earlier or later (fall dormant) seeding is likely to result in poor establishment of warm season species and is therefore discouraged.

Seed mix may need to be adjusted due to site characteristics and/or lack of available seed for some species. In the latter case, adjust species seeding rates by formulas above table to obtain approximately 50 seed per square foot and/or 12-16 lbs. of PLS per acre for drilled seed and

18-24 lbs. per acre for broadcast seeding. Call the appropriate Medora or McKenzie Ranger Districts if there are questions.

Medora Ranger District: 701-227-7800. McKenzie Ranger District: 701-842-2393.