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<br />"SOII, SURVEY
<br />This soil has good potential for urban and recreational
<br />development. Increased population growth in-the survey
<br />area has resulted in increased homesite. construetion_ The
<br />chief limiting soil features for urban development 2re the
<br />shrink-swell potential of the subsoil as it wets and dries
<br />and the limited ability of this soil to support a load. Septic
<br />tank absorption fields function properly, but community
<br />sewage systems should be provided if the population den-
<br />.. city increases. Because of the moderately rapid permea-
<br />bility of the substratum; se~4age lagoons must be sealed.
<br />Lawns, shrubs, and trees grow well. Capability subclass
<br />is a deep; somewhat excessively drained soil on flood
<br />plains at elevations of 4,450 to 5,000 feet. It formed in
<br />stratified recent alluvium along streams and rivers. In-
<br />cluded in mapping aze numerous sand and gravel bars
<br />and small areas of noncaleareous soils.
<br />Typically the surface layer of this'Bankard soil is
<br />brown sandy loam about 4 inches thick. The underlying
<br />material to',a.depth of 60 inches is pale brown calcareous
<br />sand stratified with thin lenses of sandy loam, loam, and
<br />fine gravel.
<br />Permeability is moderately rapid. Available water
<br />capacity is low: The effective rooting depth is 60 inches or
<br />more. Surface runoff is slow, and the erosion hazazd is
<br />low.
<br />This soil is suited to limited cropping. It is sandy and
<br />subject to flooding. Pasture is the best use. Tall wheat-
<br />grass, tall fescue, and annual sweetclover aze -some of the
<br />most suitable crops. Light, frequent imgation by furrows
<br />and flooding is best. Commercial fertilizer improves the
<br />amount and value of forage produced.
<br />'The potential native vegetation is dominated by
<br />switchgrass, indiangrass, sand bluestem, sand reedgiass;
<br />sideoats grams, needleandthread, and blue grams. Much
<br />of this range site includes other soils and vegetation in
<br />such a complex pattern that it is difficult to map them
<br />sepazately. Potential production ranges from 2,500 pounds
<br />per acre in favorable years to 1,500 pounds in unfavorable
<br />years. As range condition deteriorates, the-tall and mid
<br />grasses decrease; blue grams, sand dropseed, and forbs
<br />increase; and forage production drops. >-lndesirable weeds
<br />and annuals invade. the site as.range condition becomes
<br />poorer.
<br />Management of vegetation should be based on taking
<br />half and leaving half of the totalannual production: Seed-
<br />ing is desirable only in areas large enough to interseed or
<br />to prepaze a seedbed.. Switchgrass, sand. bluestem, sand
<br />reedgrass, sideoats grams, little bluestem, blue grams, pu-
<br />bescent wheatgrass, and intermediate wheatgrass are
<br />suitable for seeding. This soil can be seeded by using an
<br />interseeder or a firm, clean sorghum stubble. A grass drill
<br />is required. Seeding early in spring has proven most suc-
<br />This soil is generally not suited to the establishment
<br />and growth of trees and shrubs. Onsite investigation is
<br />needed to determine feasibility and possible tree .and
<br />shrub species.
<br />Wildlife .is an important secondary use of this soil. The
<br />opland azeas provide favorable habitat for ring-necked
<br />ieasant and mourning dove. Many nongame species can
<br />attracted by establishing areas for nesting and escape
<br />ver. For pheasants, undisturbed nesting cover is essen-
<br />d and should be included in plans for habitat develop-
<br />ent, especially in azeas of intensive agriculture. Range-
<br />nd wildlife, for example, deer and antelope° can be at-
<br />acted by .managing livestock grazing and reseeding
<br />here needed.
<br />This soil is not suited to urban or recreational develo
<br />ent because of the flood hazard. Capability subclas
<br />tw- irrigated,' VIw nonirrigated; Sandy Bottom land
<br />n¢e site.
<br />1T 1-Bresser sandy loam, 0 to 1 percent slopes. This is
<br />a deep, well drained soil on terraces at elevations of 4,700
<br />to 4,800 feet. ~ It formed in alluvium deposited by. the
<br />South Platte River. Included in mapping are small azeas
<br />of soils that have sand and gravelly .sand in the lower
<br />part of the substratum.
<br />Typically the surface layer is grayish brown sandy loam
<br />about 11 inches thick. The subsoil is -blown and yellowish
<br />brown sandy clay loam about 19 inches thick. The sub-
<br />stratum to a depth of 60 inches is loamy sand.
<br />Permeability and available water capacity aze
<br />moderate. The effective rooting depth is 60 inches or
<br />more. Surface runoff is slow, and the erosion hazazd is-
<br />low....
<br />This soil is used almost entirely for imgated crops. It
<br />is suited to all._crops commonly grown in the area includ-
<br />ing corn, sugaz beets, beans, alfalfa, small grain, potatoes,
<br />and onions. An example of a suitable cropping system is 3
<br />to 4 years of alfalfa followed by corn; corn for silage,
<br />sugar beets, small grain, or beans. Few conservation prae-
<br />trees are ~iieeded to.maintain top yields. _
<br />All methods of imgation aze suitable, 'but furrow ir-
<br />rigation is the most common. Barnyard manure and com-
<br />mercial fertilizer aze needed for top yields.
<br />Windbreaks and-environmental plantings are generally
<br />suited to this soil. Soil blowing, the principal hazard in
<br />establishing trees and shrubs, can. be controlled by cul-
<br />tivating only in the tree row and: by leaving a strip of
<br />vegetation between the rows. Supplemental imgation
<br />may be-needed at the'time of planting and during dry
<br />periods. Trees that are best suited and have good survival
<br />are Rocky Mountain juniper, eastern redcedaz, ponderosa
<br />pine, Siberian elm, Russian-olive, and hackberry: The
<br />shrubs best suited are skunkbush sumac, lilac, and Siberi-
<br />an peashrub:
<br />Wildlife is an important secondary use of this soil.
<br />Ring-necked pheasant, mourning dove, and many non-
<br />game species can be attracted by establishing areas for
<br />nesting and escape cover. For pheasants, undisturbed
<br />nesting cover is essential and should be included~in plans
<br />for habitat development, especially in areas of intensive
<br />agriculture.
<br />This soil has good potential for urban and recreational
<br />development. Lawns, shrubs, and trees grow well. The
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