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• <br />R8-CD 2 <br />irrigation water. Incorporating crop residues into and on the <br />surface will improve water infiltration, filth, help control Boil <br />erosion and help maintain adequate organic matter in the surface <br />layer, Land smoothing, water rnanagerrient, and irrigation <br />structures are needed in some areas for a more uniform distribution <br />and use of irrigation water. <br />lrri.gation ^ret}~ods suitable for this soil are furrows, corrugation, <br />and sprinklers. F1u•row irrigation is best suited to row crops. <br />Sprinkler irrigation is well suited to most crops. Corrugations <br />are suitable for alfalfa and small grains. Regardless of the <br />irrigation method used, water must be applied carefully to control <br />erosion and to avoid perching water on the slowly permeable subsoil. <br />In nonirrigated cropland areas management is needed to conserve <br />moisture, control soil erosion, and maintain productivity of the <br />coil. Stubble rnulch tillage and incorporating crop residues in <br />and on the surface are essential to reduce runoff and erosion and <br />to conserve moisture, Chiseling or sub soiling are effective in <br />breaking up tillage pans and improving water penetration. Tillage <br />operations should be kept to a minimum. <br />Rangeland vegetation of this soil consists of western wheatgrass, <br />muttongrass, squirrel tail, Indian ricc~rass, big sagebrush, juniper, <br />and pinyon pine, Proper grazing use coupled with planned grazing <br />