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~' <br />i.'°~; <br /> <br /> <br />~~ <br /> <br /> <br /> <br />Suggested vegetative cover: For a vegetative ground cover on slopes of 3:1 <br />or flatter, with a northeast exposure, a mixture of the following grasses <br />could be seeded: Western wheatgrass (Agropyron smithii) 30%, variety Barton; <br />Side oats grama (Bouteloua curtipendula) 40°/,, variety Vaughn; Blue grama <br />(Bouteloua gracilis) 30%, variety Covington. <br />Recommended Seeding Rate: 40 pure Live seeds (P.L.S.) per square foot. <br />Western wheatgrass 30% 4.8 lbs. P.L.S./Acre <br />Blue grama 30% 0.6 lbs. P.L.S.(Acre <br />Side oats grama 40% ~ 3.5 lbs. P.L.S./Acre <br />TOTAL 8.9 lbs. P.L.S./Acre <br />Suggested Vegetative cover: For a vegetative ground cover on slopes of 3:1 <br />or flatter with a southwest exposure, the following mixture would be accepta- <br />ble: Blue grama (Bouteloua gracilis) 30%, and Side oats grama (Bouteloua <br />curtipendula) 70%. <br />Recommended Seeding Rate: 40 pure live seeds (P.L.S.) per square foot. <br />Blue grama 30% 0.6 16s. P.L.S./Acre <br />Side oats grama 70% 6.2 lbs. P.L.S./Acre <br />TOTAL 6.8 lbs. P.L.S./Acre <br />All suggested seeding rates are based on using a grass drill. Lf the broadcast <br />method is used, the seeding rates should be increased two fold. <br />Slopes at 3:1 should be mulched after seeding to reduce water and wind erosion <br />before the area is protected by the seeded vegetative cover. An effective <br />mulch of clean straw (grass, hay or cereal grain) applied at a rate of 4,000 <br />pounds per acre, will provide 92 percent of coverage for the soil surface. <br />This will increase soil moisture and reduce the surface temperature to protect <br />germinating seeds and seedlings. The straw should be crimped into the soil <br />to prevent it from blowing and washing away. Other acceptable mulch materials <br />are excelsior matting, }ute netting and erosion control fabric. <br />SEEDING DATES: A11 seedings should be made in the spring, if possible, to <br />take advantage of the best moisture period. Recommended dates are between <br />March 15th and May 15th. Late fall seeding can be made after October 15th. <br />Germination will not take place until the following spring. <br />SEEDING EQUIPMENT: A grass drill with depth bands should be used. This will <br />insure a better seed germination and survival rate. Broadcast seeding is <br />acceptable but not recommended. <br />