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Switchgrass (Nebraska-28) 4.0 to 6.0 Native Warm <br /> Alfalfa (Nomad) 3.0 to 5.0 Introduced 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 6.4.5- <br /> 3. Fertilizer Application <br /> Table 6.4.5-3. Fertilizer Application <br /> Fertilizer Standard rate <br /> Ibs/acre <br /> Diammonium phosphate (18-46-0) 250 <br /> (46-53% available P205with 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 39.4 acres. The total area to be fertilized is <br /> approximately 39.4 acres. Seeding and fertilizing will be completed after the <br /> overburden and topsoil is replaced, smoothed to conform to the existing <br /> topography and disked. Optimal periods of seeding are in the fall (after <br /> November 1 st) or in the spring from late March up to April 30th. Mulching will not <br /> be completed as the quality soils and availability of water should facilitate the <br /> rapid establishment of perennial grasses. <br /> Following revegetation, weed management strategies will be implemented to <br /> facilitate and achieve native grassland. Years 1 thru 5 following 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 /> to further control these weeds. Herbicides will also be used to control salt cedar <br /> (Tamarix spp.) if it becomes established in the reclaimed area. Table 6.4.5-4 <br /> Recommended Herbicide Application defines recommended herbicides, <br /> application rate, and time of application for each of the 9 species. It may be <br /> necessary to replant treated areas. <br /> Kirtright Pit(M1986-123) Amendment Application <br /> Specific Exhibits <br /> Page 7 of 26 <br />