2010-05-25_REVISION - C1981008 (28)

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4.9 Seed Mix #7 - Recommended Varieties Alfalfa - Lahontan (Vernal, Ladak 65, Dawson or other recommended famish varieties)" The Morgans also would like to be able to use AV120 and SS120 alfalfa (Medicago Sativa) from Arkansas Valley Seed Company. Other varieties may be used, upon approval with the landowner and the NRCS. New species may be developed which are better suited to these site conditions and soils. 4.10 Seed Mix General Comments All species contained in Seed Mixes #5, #6 and #7 are introduced. The introduced species support the proposed postmining land use, and the referenced literature and individuals (presented in the following paragraph) support the fact that these species are desirable and necessary to achieve the postmining land use. Species selection for the irrigated pasture mixes was based on these items: (1) irrigated pasture mixtures should be simple, with one to two grasses and a legume; (2) the legume should be a persistent, adapted, non - bloating species; and (3) the grass component should be palatable, nutritious, persistent and compatible in the stand. Alfalfa, the desirable legume for Seed Mix #5, is selected for its long history of production and longevity in the local area. Dean Stindt, Soil Conservation Service local Extension Agent (nowwith the Bureau of Land Management, Norwood Office), recommended varieties shown in Seed Mix #5. Birdsfoot trefoil, selected as the legume for Seed Mix #6, is a long -lived perennial forage legume that is non - bloating, winter hardy, and adapted to a range of site conditions including poorly drained sites. Though a slow starter, once established it is persistent in the stand, particularly if seeded in alternate rows. The seed must be inoculated with a specific strain of Rhizobium bacteria. Other coal companies have used meadow brome in their operations (specifically, Peabody's Big Sky Mine in Montana). The use of meadow brome is supported by the enthusiastic recommendation of its use in irrigated pastures by the Colorado State University Experiment Station and Cooperative Extension Service. Meadow brome is highly palatable but persists well in irrigated pastures and has nutrient qualities at least as high as smooth brome. Orchardgrass has been a common and proven component in irrigated pastures for years because of its palatability, nutrient qualities, compatibility with legumes and PR -06 May 2010 2.05.4(2)(e) -29