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<br />r.. United States Soil <br />~~ Department of Conservation <br />~ ~ Agriculture Service <br />October 22, 1990 <br />Mr. Wayne Mitchell PAGE 2 <br />2. Top soil: During mining operations topsoil should be stockpiled to be <br />used in reclamation of the area. After mining operations are completed, <br />the area should be shaped and graded with no slopes exceeding 3:1. Any <br />area mined below the 100 year flood plain is to be backfilled to above <br />the 100 year flood plain. After scarifying, topsoil should be spread over <br />any disturbed area, except where buildings are to be built. The topsoil <br />is to be six inches to one foot thick. While topsoil is stockpiled it <br />will be seeded to Lincoln Smooth Brome grass at the rate of 19 pounds per <br />acre of Pure Live Seed. It will be seeded with a nurse crop of 15 pounds <br />of oats per acre. Seeding will be done between November 1 and May 1. <br />3. Cover Crop: After the topsoil has been spread over areas to be reclaimed <br />they should be seeded to a cover crop. Recommendations are to use a <br />hybrid forage sorghum. This should be seeded before July 1. The rate of <br />seeding recommended is about 15 pounds of seed per acre in 6" to 12" row <br />spacing. Should have at least 8" to 12" of stubble to seed grass into. <br />4. Fertilizer: Forty pounds of available nitrogen and forty pounds of <br />phosphorus (P205) per acre should be applied just prior to seeding. This <br />fertilizer should be mixed into the soil. Barnyard manure could be used <br />as a mulch and replace part of the fertilizer. <br />5. Seeding: Grass seeding should be done between November 1 and May 1. <br />Seeding should not be done when the ground is frozen. The seedbed should <br />be firm, moist and clean of weeds. Seeding can be made into a cover crop, <br />see item number 3 above. If a cover crop is not used then after the land <br />has been seeded it should be covered with a mulch. See item number 6 <br />titled mulching. <br />The following is a seeding mix recommendation: <br />GRASSES 7 OF MIX SEEDING RATE* <br />Covington Blue Grama 25 .75 <br />Vaughn Sideoats Grama 25 2.25 <br />Arriba Western Wheatgrass 40 6.40 <br />Lodorm Green Needlegrass 10 1.00 <br />*Seeding rate of Pure Live Seed per acre. This seeding rate is for <br />seeding with a grass seed drill. Should broadcast seeding be done then <br />the seeding rate should be doubled. This seeding mixture can be changed <br />with approval of the proper authorities. <br />0 <br />