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Page 2 <br />White River Sand & Gravel <br /> expected on this site include western wheatgrass, prairie <br />• Junegrass, Indian ricegrass, needleandthread, bluegrass species, <br /> various forbs and cheatgrass. <br /> The total expected ground cover of the present vegetation on <br /> this site is 20 to 30 percent. The annual forage production is <br /> estimated to be around 1,000 pounds air dry weight. <br /> 3) RECLAMATION RECOMMENDATIONS - When the gravel pit is to be <br /> closed, the following reclamation recommendations should be <br /> considered to potentially insure a more successful revegetation <br /> of the site: <br /> The site should be recontoured and smoothed to slopes no <br /> steeper than 3:1 and preferably flatter. The flatter the slopes, <br /> the better the opportunity of re-establishing vegetation. All <br /> areas which are compacted should be ripped. <br /> Topsoil which may have been stockpiled, should be spread <br /> evenly over the site, if possible to a minimum depth of 4 to 6 <br /> inches. The site should then be tilled and firmed to prepare a <br /> suitable seedbed. <br /> Seeding of the site should be done in the late fall (October <br /> 1st and later) prior to the soil becoming frozen. The seed <br /> should be drilled with a grass drill having double disk openers <br /> and packer wheels. Planting depth should be approximately 1/2 <br /> inch. If the seed will be broadcasted instead of drilled, then <br /> the recommended seeding rate below should be doubled. If <br /> broadcasted, after spreading the seed, the area should be <br /> harrowed or dragged to incorporate the seed into the soil. <br /> Mulching the site is recommended with clean weed free straw. <br /> However, unless the mulch is properly crimped into the soil with <br /> a disc or mulch crimper, it is a waste of time as the wind will <br /> likely remove the mulch within a very short time. <br /> The following grass species are recommended to be used to <br /> reseed the site. The following mixture in pounds of pure live <br /> seed should be used: <br /> Specie Variety Pounds PLS/Acre <br /> Western Wheatgrass Arriba 3.2 <br /> Indian Ricegrass Paloma 2.5 <br /> Streambank Wheatgrass Siberian 2.2 <br /> Russian Wildrye Vinal 2.0 <br /> Crested Wheatgrass Ephraim 2.0 <br /> Total Pounds PLSIAcre 11.9 <br /> Due to the relatively small size of the disturbed area, <br /> native grass, forb and shrub species will invade the site within <br /> a reasonably short time. <br /> Proper and adequate weed control measures will be necessary <br /> to insure the establishment of a sufficient stand of grass and <br /> prevent the invasion of weeds, especially noxious weeds. If weed <br /> competition is reduced the opportunity for grass establishment is <br /> increased significantly. Noxious weeds need to be controlled. <br /> Correctly labeled herbicides should be applied during the first <br />• early spring after the seed is planted. <br /> The site should have all livestock excluded for a minimum of <br /> one full growing season after planting. <br />