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iv. Mulching Techniques <br />Straw mulch will not be applied to the irrigated field. It will only <br />be utilized on small areas that cannot be irrigated. <br />In the non -irrigated areas if any, straw mulch will be used to <br />provide surface protection and store moisture during the first <br />growing season. The application rate will be about 4,000 <br />pounds per acre. Only clean grain straw that is free of noxious <br />or problem weeds will be used. The straw will be anchored by <br />mechanical crimping. <br />V. Irrigation, if appropriate and pest and disease control <br />Irrigation is planned for the regraded and revegetated areas to <br />help establish and maintain plant growth consistent with the <br />postmining land use. One of more brass impact commercial <br />size sprinkler systems (-3/4" nozzle) will be utilized. The brass <br />impact sprinkler(s) will be moved around the reclaimed area to <br />effectively irrigate the entire area. This type of irrigation system <br />will minimize erosion to the newly seeded area. <br />Weed Control <br />This weed control plan is concerned with the control of all <br />varieties of noxious weeds on the mine site. It was developed <br />in coordination with Webb Callicutt, Coordinator, Delta County <br />Noxious Weed Program. Noxious weeds of concern in the <br />general location of the Bowie No. 1 Mine permit area are; 1) <br />Russian knapweed, Musk, Canadian and Scotch thistle, <br />Houndstounge, Oxeye Daisy and Yellow toadflax. <br />Yellow toadflax can be sprayed anytime it is discovered. <br />Sprayed with Banvel, 1.5 oz/gal. <br />All of the other noxious weeds will be sprayed with Curtail, 2.0 <br />oz/gallon mixed with a non-ionic surfactant at 1 quart per 100 <br />gallons of spray. It will not be applied when spray particles may <br />be carried by air currents to areas where desirable plants are <br />RN -07 2.05-27 03/18 <br />