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Table E-3. Recommended Seed Mixture <br /> Species (Variety) Rate— pure live Native/ W/C <br /> seed (PLS) Introduced Season <br /> Ibs/ac <br /> Thickspike wheatgrass 8.0 to 10.0 Native Cool <br /> (Critana) <br /> Sideoats grama (Vaughn) 5.0 to 7.0 Native Warm <br /> Switchgrass (Nebraska-28) 4.0 to 6.0 Native Warm <br /> Alfalfa (Nomad) 3.0 to 5.0 I,itroduced NA <br /> TOTAL 20.0 to 28.0 <br /> Based on this seed mixture, an application rate of approximately 20.0 to 28.0 Ibs <br /> PLS/ac will be used. Topsoil should be disked prior to seeding. It is <br /> recommended that fertilizer be utilized for reclamation. A standard application of <br /> fertilizer will be used and applied at a rate of 250 Ibs/ac as shown in Table E-4. <br /> Table E-4. Fertilizer Applicaticn <br /> Fertilizer Standard rate <br /> Ibs/acre <br /> Diammonium phosphate (18-46-0) 250 <br /> (46-53% available P2O5 with 18-21% <br /> N) <br /> Fertilizer will not be used near the edge of the reservoir, since the possibility of <br /> nitrate contamination in the pond water exists. The total disturbed area to be <br /> seeded is approximately 53acres. The total area to be fertilized is approximately <br /> 53 acres. Seeding and fertilizing will be completed after the overburden and <br /> topsoil is replaced, smoothed to conform to the existing topography and disked. <br /> Optimal periods of seeding are in the fall (after November 1st) or in the spring <br /> from late March up to April 30th. Mulching will not be completed as the quality <br /> soils and availability of water should facilitate the rapid establishment of perennial <br /> grasses. <br /> Following revegetation, weed management strategies will be implemented to <br /> facilitate and achieve native grassland. Years 1 thru 5 fcllowing revegetation will <br /> include an aggressive mowing program to prevent the growth and establishment <br /> of weeds, specifically, eight noxious weeds including: Canada thistle (Cirsium <br /> arvense), Dalmation toadflax (Linaria dalmatica), diffuse knapweed (Centaurea <br /> diffusa), leafy spurge (Euphorbia esu/a), musk thistle (Carduus nutans), Russian <br /> knapweed (Centaurea repens), spotted knapweed (Centaurea maculosa) and <br /> Yellow toadflax (Linaria vulgaris) as mandated by Colorado State Law (35- <br /> 5.5CRS1990, 1996). If needed, herbicide application will be applied as needed <br />