1994-10-19_PERMIT FILE - M1994093

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• Cooley Sand and Gravel , continued pag= 3 be anchored. One method is to use a straw crimper and "crimp " the • mulch into the soil . This should help to control erosion until the grass becomes established. See attached SCS standards and specifications for Mulching. 5) Fertilizer: A soil test should be taken to determine fertilizer recommendations before seeding grass. Fertilizer should be applied • prior to or during seeding and should be mixed into the soil . 6) Grass Seeding: Grass seeding should be done between November 1 and May 1 . Seeding should not be done on frozen soil . The seedbed should be firm and weed free. After the land is seeded to grass , it should be covered with mulch. Double the rates , listed below, for • broadcast seeding. The following is a seeding recommendation. PLS Grasses % of Mix Per Acre • Western wheatgrass , Barton 20% 3 . 2 Streambank wheatgrass , Sodar 10% 1 . 1 Slender wheatgrass , common 10% 1 . 1 Switchgrass , Blackwell 10% 0 . 5 Little bluestem, Pastura 10% 0. 7 Blue grama , Lovington 20% 0 . 6 • Sideoats grama, Vaughn 10% 0 . 9 Cicer Milk vetch , Monarch 10% 1 . 3 Total Pure Live Seed (PLS) per Acre 9 4 • Stockpiled topsoil (when it will be stockpiled over two years) should be seeded to Fairway Wheatgrass at the rate of 6 pounds per acre pure live seed. This rate is for a grass seed drill . For broadcast seeding, seeding rates should be doubled. Grass should be planted using a grass seed drill with agitators in the drill box , double disc with depth bands and packer wheels. Ninety-five percent of the seed • should be planted at a depth of 1/2 inch to 3/4 inch. When stockpiled topsoil for 6 months to 2 years , then an annual crop , such as wheat or forage sorghum should be seeded for erosion protection. Short term stockpiled topsoil could be protected with a mulch. 7) Weed Control : Weed control is necessary to insure a successful • seeding. Weeds can be controlled by mowing or spraying chemicals. Mow weeds when they are 6 to 8 inches high , leaving a 3 to 4 inch stubble. Do not clip off the top of the newly seeded grass. Mowing should be done for at least two growing seasons. After the seeded plants have reached the four leaf stage , then appropriate herbicides may be used to control weeds. Any chemicals used will need to be used • according to manufacturer 's labeling. 8) Grazing: The area should be protected and grazing should be prohibited until the grass has become established. •