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• Permeability of this Binco soil is very slow. Effective rooting depth is <br />60 inches or more. Available water capacity is moderate. Runoff is medium, <br />and the hazard of water erosion is moderate. <br />Most areas of this unit are used for nonirrigated crops, mainly winter- <br />wheat and spring barley. A few areas are used for livestock grazing and <br />wildlife habitat. <br />If this unit is used for nonirrigated crops, the main limitations are the <br />moderate hazard of water erosion, the short growing season, and the clayey <br />soil texture. Crop residue left on or near the surface helps to conserve <br />moisture, maintain tilth, and control erosion. Because of the clayey soil <br />texture, tillage operations should be done when the soil is at the proper <br />moisture content. <br />The potential plant community on this unit is mainly western wheat grass, <br />prairie junegrass, Nevada bluegrass, bottlebrush squirreltail, and alkali' <br />• sagebrush. Other plants that characterize this unit are onion and Vasey <br />rabbitbrush. The average annual production of air-dry vegetation is about <br />500 pounds. <br />If the range is overgrazed, the proportion of preferred forage plants <br />decreases and the proportion of less preferred forage plants increases. <br />Therefore, livestock grazing should be managed so that the desired balance of <br />preferred species is maintained in the plant community. <br />If the range vegetation is seriously deteriorated, seeding is needed. <br />The plants selected for seeding should meet the seasonal requirements of <br />livestock or wildlife, or both. Seeding late in fall helps to ensure that <br />soil moisture will be adequate for the establishment of the seedlings next <br />spring. <br />Other management practices suitable for use on this unit are proper range <br />use, deferred grazing, rotation grazing, and brush management. Brush manage- <br />. ment improves deteriorated areas of range that are producing more woody shrubs <br />than were present in the potential plant community. <br />Ex. 16-18 <br />