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4.6 Seed Mix #6 - Irrigated Alfalfa Hayland <br />(Rice Tract/ Garvey & Company) <br />This seed mix is preferred by the land owner, Garvey & Company <br />Drilled <br />Rate lbs. <br />Species Cultivar PLS /acre" <br />Alfalfa Spreador 2 12 <br />Orchardgrass 8 <br />Meadow Brome 7 <br />Total 27 <br />All of the species which are proposed for the seed mixes is adapted to the conditions in <br />the Nucla area. Many of them occurred on the site prior to mining or have been used <br />in past reclamation. <br />Many species will naturally return when topsoil is distributed on graded areas. While <br />there are nearly eighty forbs and thirty grass and grass -like species which occur on the <br />proposed permit area, only eight are listed as noxious in the Colorado Noxious Weed <br />Seed Requirements recognized in the Administration of the Federal Seed Act, (U. S. <br />Department of Agriculture, January, 1978). These eight species include: <br />1. Agropyron repens <br />Common quackgrass <br />2. Cardaria pubescens <br />Hairy whitetop <br />3. Centaurea repens <br />Russian knapweed <br />4. Cirsium arvense <br />Canada thistle <br />5. Chorispora tenella <br />Common bluemustard <br />6. Convovulus arvensis <br />Field bindweed <br />7. Plantago lanceolata <br />Buckhorn plantain <br />8. Rumex crispus <br />Curly dock <br />5.0 Seedino and Plantino Methods <br />During the first available (weather dependent) planting season after topsoil replacement <br />(usually April 1 to May 15 and September 1 to November 15), the appropriate perennial <br />seed mixes will be seeded. Any interseeding or reseeding would be accomplished usually <br />concurrent with the regular planting season. <br />Seeding will be accomplished by drill or broadcast seeding, with drill seeding the <br />preferred method. Broadcast seeding will be used for situations where drill seeding is not <br />practical or feasible. <br />6.0 Surface Stabilization Measures <br />The planting of a cover crop will establish a relatively quick vegetative cover and will be <br />the principle means of surface stabilization during establishment of the perennial <br />vegetative cover. Where mulch will be used to provide surface protection, the application <br />rate will be approximately 2,000 pounds /acre. The straw will be anchored by mechanical <br />crimping or tacked with one of the various tackifying agents available on the market. <br />Revised February 2010 (PR06) Tab 22 -12 <br />