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seed. A suitable grass drill should be used that is equipped with a fluffy seed box with an <br /> agitator and pickers to deliver fluffy seeds, double disk openers, depth bands, and packer <br /> ' wheels. Top soil depth should be 8" to 10" in depth. <br /> ******Refer to details below for recommended seed mixtures. <br /> *Refer to attached information for specifics on soils. <br /> ******Post seeding maintenance will be critical for the successful establishment of the <br /> revegetation effort. Plans should be made to have an aggressive weed control program for <br /> ' at least one year after the seeding. Weed control options include frequent and timely <br /> mowing, residual and/or contact herbicides use according to label instructions, and "flash <br /> grazing" if livestock use is not prohibited by farm program regulations. The seeded area <br /> ' must be excluded form uncontrolled livestock grazing by the use of permanent fencing for <br /> a period of two successive growing seasons after planting or until the seeded plants <br /> become fully established. <br /> Recommended Seed Mixture <br /> for Revegetating Gravel Mine Areas in <br /> ' Southeastern Colorado <br /> Major Land Resource Areas G67, G69 &1-172 <br /> ' Limestone, Sandstone or Gravel Break Areas: <br /> SEED RATE <br /> SPECIES VARIETY % MIX PLS LBS/AC ** <br /> Sideoats Grama Niner, El Reno 20 1.8 <br /> Little Bluestem Pastura 20 1.4 <br /> Blue Grama Hachita, Lovington 10 0.3 <br /> Galleta (caryopsis) Viva 10 0.4 <br /> Western Wheatgrass Arriba 20 3.2 <br /> Switchgrass Blackwell 20 1.0 <br /> ** Seeding rates shown are for use with an adequate native grass drill. These rates must <br /> be doubled if the seed is broadcast onto the site. <br /> ' Wetland area: These should be seeded according to recommendations of Corps. of <br /> ' Engineers or a wetland consultant. <br />