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44
<br />SOIL SURVEY
<br />to allow moisture accumulation. Generally precipitation is
<br />too low to make beneficial use of fertilizer.
<br />Stubble mulch farming, stripcropping, and minirpum til-
<br />lage are needed to control soil blowing and water erosion.
<br />Terracing also may be needed to control water erosion.
<br />The potential native vegetation is dominated by
<br />western wheaygrass and blue grams. Buffalograss is also
<br />present. Potential production ranges from 1,000 pounds
<br />per acre in favorable years to 600 pounds in unfavorable
<br />years. As range condition deteriorates, a blue grams-buf-
<br />falograss sod farms. Undesirable weeds and annuals in-
<br />vade the site as range condition becomes poorer.
<br />Management of vegetation on this soil should be based
<br />on taking half and leaving half of the total annual produc-
<br />tion. Range pitting can reduce runoff. deeding is desirable
<br />if the range is in poor condition. Western wheatgrass,
<br />blue grams,. sideoats grams, buffalograss, pubescent
<br />wheatgrass, and crested wheatgrass aze suitable for seed-
<br />ing. The grass selected should meet the seasonal require-
<br />ments of livestock. It can be seeded into a clean, firm
<br />sorghum stubble, or it can be drilled into a firm prepazed
<br />seedbed. Seeding early in spring has proven most suc~ess-
<br />fuL
<br />Windbreaks and environmental plantings of trees and
<br />shrubs commonly grown in the area are generally well
<br />' suited to this soil. Cultivation to control competing
<br />.vegetation should be continued for as many years as
<br />possible following planting. Trees that are best suited and
<br />have good survival are Rocky Mountain juniper, eastern
<br />redcedaz, ponderosa pine, Siberian elm, Russian-olive, and
<br />hackberry. The shrubs best suited are skunkbush sumac,
<br />lilac, Siberian peashrub, and American plum.
<br />Wildlife is'an important secondary use. of this soil. The
<br />cropland aeeas provide favorable habitat for ring-necked
<br />pheasant and mourning dove. Many nongame species can
<br />be attracted by establishing aeeas for nesting and escape
<br />cover. For pheasants, undisturbed nesting cover is essen-
<br />tial and should be included in plans for habitat develop-
<br />ment,-especially in areas of intensive agriculture- Range-;
<br />land wildlife, for example, the, pronghorn antelope, can be
<br />attracted by developing livestock watering facilities,
<br />managing livestock grazing, and reseeding where needed.
<br />This soil has poor potential for urban and recreational
<br />development. Slow permeability and high shrink swell
<br />cause problems in dwelling and road construction. Capa-
<br />bility subclass IIIe imgated, IVe nonirrigated; Clayey
<br />Plains range site.
<br />68- s ~c orrio en s, mo erately steep. ese are
<br />dip, excessively drained soils on terrace. breaks and
<br />escarpments at elevations of 4,450 to 5,100 feet. They
<br />formed in gravelly alluvium and have slopes of 9 to 25
<br />percent. Included in mapping are small areas of soils tha
<br />have pockets of sandy loam and loam in the underlyin
<br />material.
<br />Typically the surface layer is pale brown gravelly sand
<br />about 20 inches thick. The underlying material to a depth
<br />of 60 inches is pale brown gravelly sand.
<br />Permeability is rapid. Available water capacity is low.
<br />ie effective rooting-depth is 60.inches or more. Surface
<br />Hoff is medium, and the erosion hazazd is moderate.
<br />The potential native vegetation is dominated by little
<br />uestem, sideoats grams, sand reedgrass, blue grams,
<br />iry grams, switchgrass, and needleandthread. Potential
<br />oduction ranges from 700 pounds per acre in favorable
<br />ors to 200 pounds in unfavorable years. As range condi-
<br />m deteriorates, the tall and mid grasses decrease, blue)
<br />ama and hairy grams increase, and forage production
<br />Management of vegetation should be based on taking
<br />df or less of the total annual production. Deferred graz-
<br />g is practical in improving range condition Seeding and
<br />echanical treatment are impractical.
<br />Windbreaks and environmental plantings generally are
<br />it suited to these soils. Onsite investigation is needed to
<br />~termine if plantings aze feasible. . .
<br />Wildlife populations aze limited because the necessary
<br />~bitat elements are lacking. Because most of the acreage
<br />rangeland, only rangeland wildlife, for example scaled
<br />rail and antelope, are typical. Extreme care is needed in.
<br />anaging livestock grazing.in order to provide suitable
<br />~bitat on these soils.
<br />Potential is'poor for urban and recreational develop-
<br />ent. The chief limiting soil features are the loose,~coarse
<br />xtured soil, steep slopes, and rapid permeability. Caps-
<br />Gty subclass VIIs irrigated, VIIs nonirrigated; Gravel
<br />•eaks range site.'
<br />~ 69-Valent sand, 0 to 3 percent slopes. This is a deep,'
<br />excessively drained soil on plains at elevations-of 4,650 to.
<br />5,100 feet. It formed in eolian deposits. Included in
<br />mapping are small areas of soils that have lime within a
<br />depth of 40 inches.
<br />Typically the surface layer is brown sand about 8
<br />inches, thick. The underlying material to a depth of 60
<br />inches is brown sand.
<br />Permeability is rapid: Available water "~~Iacity is
<br />moderate. The effective rooting depth is 60 inches or
<br />more. Surface runoff is slow, and the erosion hazard is
<br />low.
<br />This soil is suited to limited cropping. Intensive
<br />cropping is hazazdous because of erosion. The cropping
<br />system should be limited to such close grown-crops~as al-
<br />falfa, wheat, and barley. The soil also is suited to ir-
<br />rigated .pasture. A suitable cropping system is 3 to- 4
<br />years of alfalfa followed by 2 years of corn and small
<br />grain and alfalfa seeded with a nurse crop.
<br />Closely spaced contour ditches or sprinkers can be used
<br />in irrigating close grown crops. Contour furrows or sprin-
<br />klers should be used for new crops. Applications of baz-
<br />nyazd manure and commercial fertilizer help to maintain
<br />good production.
<br />The potential vegetation is dominated by sand
<br />bluestem, sand reedgrass, switehgrass, sideoats grams,
<br />needleandthread, little bluestem, and blue grams. Poten-
<br />tial production ranges from 2,500 pounds per acre in
<br />favorable years to 1,800 pounds in unfavorable years. As
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