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USDA-Natural Resources Conservation Service <br /> Re- Vegetation Guidelines for Energy Production Projects <br /> Seedbed Preparation:NRCS recommends the grasses be planted into a firm,weed-free seedbed, <br /> because success depends upon good soil-to-seed contact. The seedbed should be firm but not overly <br /> compact prior to planting.A good rule of thumb for seedbed preparation is a boot heel print should <br /> press about 1/2"deep. Where possible,topsoil (top 6"-10")should be stockpiled during <br /> excavation/construction and replaced during final grading.Excess rock should be gleaned from the <br /> surface if possible to create an adequate seedbed surface. Seed should be planted to a depth of 1/4"to <br /> 3/4" whether drilled or broadcasted.Use a drill to plant seed on slopes that are 33 percent(3:1)or <br /> flatter. <br /> For broadcast applications,hand raking or dragging the area with a harrow following broadcasting <br /> should incorporate the seed to an adequate depth if the soil surface is not excessively hard or loose. <br /> Seeding and Seed Rates-The seed can be drilled or broadcasted.Using a drill with packer wheels is <br /> recommended,or rolling the seeded area with a cultipacker after drilling or broadcasting to create good <br /> seed to soil contact. <br /> Following are three seed mixes for different situations. Other species may be planted if desired or <br /> requested by a landowner,etc..The species highlighted with an asterisk(*)are strongly recommended <br /> to be a portion of a seed mix due to their good growth and establishment characteristics.Refer to CO <br /> TGN#59 Table 5 for recommended seeding rates per species.The rates shown in Table 5 are for a full <br /> seeding of each species,and therefore need to be adjusted down to reflect their percentage of the seed <br /> mix. If the seed is broadcasted,seeding rates are doubled. <br /> Refer to CO TGN#59 Table 6 for a complete list of species and the conditions they are adapted to. <br /> The table indicates whether they are native or introduced and conditions they are adapted to. <br /> Following are 3 sample seed mixes that could be used in Mineral County for different situations. <br /> Other species can be used,but the following mixes contain species well adapted to Mineral County. <br /> Non-Irrigated Native Grass Mix <br /> Species %in mix Seeding Drilled Rate,PLS Broadcasted Rate,PLS <br /> Rate MS** Pnunds Per Acre Pnunds Per Acre <br /> Pounds/acre <br /> Indian Ricegrass 10 x 12 12 2.4 <br /> Thickspike Wheatgrass* 20 x 10 = 2.0 4.0 <br /> Slender Wheatgrass 10 x 11 = 1.1 2.2 <br /> Western Wheatgrass* 40 x 16 = 6.4 12.8 <br /> Sandberg Bluegrass 10 x 2 = 0.2 0.4 <br /> Blue Grama 10 x 3 = 0_3 0.6 <br /> 100% 11.2Ibs PLS 22.41bs PLS <br />