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<br />~': ~. <br />J~ <br />R6-CD-Witt loam, 3 to 12 percent elopes <br />This is a deep, well drained soil on gently eloping to eloping uplands <br />and mesa tope. It is formed in loess with some glacial cobbles. <br />The average annual precipitatbn is 14 to 17 inches. The average <br />annual air temperatures are 45 to 50 degrees. The average frost <br />free season is 110 to 1j0 days. <br />Typically, the surface layer is a dark brown loam about ~ inches <br />thick. The upper part of the subsoil is a reddish brown clay loam <br />about 12 inches thick. The middle part of the subsoil is a reddish <br />brown silty clay loam about 11 inches thick. The lower part of <br />the subsoil is a light reddish brown loam about 16 inches thick. <br />The substratum is a yellowish red loam that extends to 60 inches <br />or more. <br />Included with this soil in mapping areas are about 20 percent Pulpit <br />loam, and small areas of Lazear stony loam and Harlan cobbly loam. <br />Permeability is moderately slow. Effective rooting depth is more <br />than 1~0 inches. Runoff is moderate and the erosion hazard is <br />moderate. Available water capacity is high. <br />This soil is used mainly for irrigated crops, dryland crops, and <br />rangeland. Alfalfa, barley and oats arc grown on irrigated areas. <br />Wheat and pinto beans are grown on dryland areas. <br />The primary management concerns on irrigated areas are controlling <br />soil erosion by water, maintenance of organic matter in the surface <br />