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28 This unit is used as rangeland. The potential plant community on the Kim soil is mainly blue grama, western wheatgrass, and sedges. The average annual production of air-dry vegetation ranges from 500 to 1,500 pounds. The potential plant community on the Shingle soil is mainly western wheatgrass, blue grama, alkali sacaton, and sideaats grama. The average annual production of air-dry vegetation ranges from 300 to 900 pounds. If the range is overgrazed, the proportion of preferred forage plants decreases and the proportion of less preferred forage plants increases. Therefore, livestock grazing should be managed so that the desired balance of preferred species is maintained in the plant community. Range seeding is suitable if the range is in poor condition. The plants selected for seeding should meet the seasonal requirements of livestock or wildlife, or both. Other management practices that are suitable for use on this unit are proper range use, deferred grazing, and rotation grazing. If the plant cover is disturbed, protection from erosion is needed. Loss of the surface layer results in a severe decrease in productivity and in the potential of the soil to produce plants suitable for grazing. The Kim soil is well suited to windbreaks and environmental plantings. The Shingle soil is poorly suited to windbreaks and environmental plantings. It is limited mainly by shallow rooting depth and low available water capacity. Supplemental irrigation may be needed when planting and during dry periods. This map unit is in capability subclass Vie, nonirrigated. The Kim soil is in Loamy Plains range site, and the Shingle soil is in Shaly Plains range site. 34-Manter sandy loam, 0 to 6 percent slopes. This deep, well drained soil is on slightly dissected to moderately dissected plains. It formed in calcareous loamy alluvium. Typically, the surface layer is brown sandy loam 3 inches thick. The upper 13 inches of the subsoil is sandy loam, and the lower 5 inches is calcareaus sandy loam. The upper 7 inches of the substratum is calcareous sandy loam, and the'lower part to a depth of 60 inches or more is calcareous loamy sand. In some areas the surface layer is loamy sand. Included in this unit are soils that are similar to this Manter soil but do not have lime at a depth of less than 40 inches. Included areas make up about 10 percent of the total acreage. Permeability of this Manter soil is moderately rapid. Available water capacity is moderate. Effective rooting depth is 60 inches or more. Runoff is slew, and the hazard of water erosion is slight to moderate. Ttle hazard of soil blowing is moderate. This unit is used mainly as nonirrigated cropland. Winter wheat is the main crop. The unit is also used as rangeland. Soil survey This unit is suited to winter wheat, barley, oats, and sorghum. Because precipitation is not sufficient for .annual cropping, a cropping system that includes small grain and summer fallow is most suitable. Precipitation usually is too low for crops on this unit to make efficient use of fertilizer. Maintaining crop residue on or near the surface reduces runoff, reduces soil blowing, and helps to maintain soil tilth and organic matter content. Stubble- mulch farming, stripcropping, and minimum tillage help to ccntrol erosion and conserve moisture. Terraces reduce runoff and the risk of erosi~ and help to conserve moisture. '. The potential plant community on this unit is mainly blue grama, needleandthread, and prairie sandreed. The average annual production of air-dry vegetation ranges from 800 to 2,000 pounds. If the range is overgrazed, the proportion of preferred forage plants decreases and the proportion of less preferred forage plants increases. Therefore, livestock grazing should be managed so that the desired balance of preferred species is maintained in the plant community. Range seeding is suitable if the range is in poor condition. The plants selected for seeding should meet the seasonal requirements of livestock or wildlife, or both. Other management practices that are suitable for use on this unit are proper range use, deferred grazing,. and rotation grazing. If the plant cover is disturbed, protection from erosion is needed. Loss of the surface layer results in a severe decrease in productivity and in the potential of the soil to produce plants suitable for grazing. This unit is well suited to windbreaks and environmental plantings. It is limited mainly by the hazard of soil blowing where the soil is barren of vegetation. Supplemental irrigation may be needed when planting and during dry periods. Summer fallow, cultivation for weed control, and selection of adapted plants are needed to insure establishment and survival of seedlings. This map unit is in capability subclass IVe, nonirrigated, and in Sandy Plains range site. 35-Manter sandy loam, 6 to 9 percent slopes. This deep, well drained soil is on moderately dissected to highly dissected plains. It formed in calcareous loamy alluvium. Typically, the surface layer is brown sandy loam 3 inches thick. The upper 13 inches of the subsoil is sandy loam, and the lower 5 inches is calcareaus sandy loam. The upper 7 inches of the substratum is calcareous sandy loam, and the lower part to a depth of 60 inches or more is calcareous loamy sand. In some areas the surface layer is loamy sand. I ncluded in this unit are small areas of soils that are similar to this Manter soil but have slopes of less than 6 percent or do not have lime at a depth of less than 40