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i~ <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />1 <br /> <br /> <br /> <br /> <br /> <br /> <br />Km--Kim loam, 0 to 3 percent elopes. This deep, well drained soil <br />is on plains and terraces. It formed in alluvium. the native vegetation is <br />mainly grasses. Elevation is 5,200 to 5,600 feet. The average annual <br />precipitation is 11 to 13 inches, the average annual air temperature is 50 <br />to 53 degrees F, and the average frost-free period is 145 to 165 days. <br />Typically, the surface layer is grayish brown loam about 3 inches thick. <br />The substratum to a depth of 60 inches or more is loam. The soil is <br />moderately alkaline. <br />Included in this unit is about five percent of soil similar to this Kim <br />soil except that a water table is at a depth of 3 to 6 feet during the <br />irrigation season. <br />Permeability of this Kim soil is moderate. Available water capacity is <br />high. Effective rooting depth is 60 inches or more. Runoff is slag, and <br />the hazard of water erosion is slight, <br />This unit is used mainly for irrigated cropland. It is also used for <br />rangeland. Hay and pasture are the main irrigated crops. A few small areas <br />are apple orchards. Other minor crops are vegetables and corn silage. <br />The potential plant comimmity on this unit is mainly blue grama, western <br />wheatgrass, and sideoats.grama. The average annual production of air-dry <br />vegetation is about 800 pounds per acre. If the condition of fhe range <br />deteriorates, pricklypear, red threeawn, and ring muhly increase. Range <br />seeding is suitable if the range is in poor condition. <br /> <br /> <br /> <br />