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Typically the surface layer of this Vona soil is grayish brown sandy loam about 10 inches <br />thick. The subsoil is brown fine sandy loam about 20 inches thick. The substratum to a <br />depth of 60 inches is sandy loam. <br />Permeability is moderately rapid. Available water capacity is moderate. The effective <br />rooting depth is 60 inches or more. Surface runoff is slow, and the erosion hazard is low. <br />This soil is used almost entirely for irrigated crops. It is suited to all corps commonly <br />grown in the area, including com, sugaz beets, beans, alfalfa, small grain, potatoes, and <br />onions. An example of a suitable cropping system is 3 to 4 years of alfalfa followed by <br />corn, corn for silage, sugar beets, small grain, or beans. The rapidly permeable substratum <br />slightly restricts some crops. <br />All methods of imgation are suitable, but fun•ow irrigations is the most common. Proper <br />irrigation management is essential. Barnyard manure and commercial fertilizer are needed <br />for top yields. <br />Windbreaks and environmental plantings are generally suited to this soil. Soil blowing, the <br />principal hazard in establishing trees and shrubs, can be controlled by cultivating only in <br />the tree row and by leaving a strip of vegetation between the row. Supplemental irrigation <br />may be necessary at the time of planting and during the dry periods. Trees that are best <br />suited and have good survival are Rocky Mountain juniper, eastern redcedar, ponderosa <br />pine Siberian elm, Russian-olive, and hackberry. The shrubs best suited are skunkbush <br />sumac, lilac, and Siberian peashrub. <br />Wildlife is an important secondary use of this soil. Ring-necked pheasant, mourning dove, <br />and many nongame species can be attracted by establishing areas for nesting and escape <br />cover. For pheasants, undisturbed nesting cover is essential and should be included in plans <br />for habitat development, especially in areas of intensive agriculture. <br />This soil has god potential for urban and recreational development. lawns, shrubs, and trees <br />grow well. The only limiting feature is the rapid permeability in the substratum, which <br />causes a hazard of ground water contamination from sewage lagoons. Capability subclass <br />Its irrigated. <br />76 -Vona Sandy Loam, 1-3 % slopes <br />This is a deep, well drained soil on plains and high terraces at elevations of 4600 to 5200 <br />feet. It formed in eolian and alluvial deposits. Included in mapping are some leveled areas. <br />Also included are small areas of soils that have a loamy substratum and areas of soils that <br />are noncalcareous to a depth of 60 inches. <br />Typically the surface layer of this Vona soils is grayish brown sandy loam about 10 inches <br />thick. The subsoil is brown fine sandy loam about 18 inches thick. The substratum to a <br />depth of 60 inches is sandy loam. <br />Permeability is moderately rapid. Available water capacity is moderate. The effective <br />rooting depth is 60 inches or more. Surface runoff is slow, and the erosion hazard is -ow. <br />DMG 1 R Permu <br />Page 49 oJ8/ <br />