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<br />S111L ~UNVh:Y
<br />1'L
<br />This soil has goad potential for urban and recreational
<br />development. Increased population growth in the survey
<br />area has resulted in increased homesite construction. The
<br />chief limiting soil features for urban development are the
<br />shrink-swell potential of the subsoil as it wet.. and Aries
<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 />sity incrcaces. Because of the malrrdely rapid permea-
<br />bility of the subslralmn, w•wagr lagrams aura la• w•:drd.
<br />lawny, shrubs, ;end tyres grow well. Cayabilily sula•brss
<br />Ile irrigated.
<br />10-Bankard sandy loam, 0 to 3 percent slopes. This
<br />is a-deep, somew a-Ti t excessively drained +oil un (loud
<br />plains at elevations of 4.x50 to 5,000 feet. It formed in
<br />stratified recent alluvium along streams amt rivers. In-
<br />cluded in mapping are numerous sand and gravel bars
<br />and small areas of noncalcareous soils.
<br />Typically the surface layer of this Bankxrd 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 fi0 inches or
<br />more. Surface runoff is slow. and the erosion h:rrani is
<br />low.
<br />This soil is suited to limited croypinq. It is sandy amt
<br />subject to flailing. Pasture is the hest use. Tall wheat-
<br />grms, tall fescue, and annual sN•retclover are some of the
<br />most suitable crops. Light, frequent irrigation by furrows
<br />and flooding is best. Commercial fertilizer improves the
<br />amount and v;tlue of forage produced.
<br />The potential native vegetation is dominated by
<br />switchgrass, indiangrass, sand bluestem, sand reerlgrass,
<br />sideoata 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 />separately. Potential production ranges from Y,500 pounds
<br />per acre in favorable yeah to I.:rUll pounds in unfavorable
<br />years. As range condition deteriorates, the tall and mid
<br />gnrsses decrease; blue grams, sand dropsrcd, and furbs
<br />increase; and forage production drops. Undesirable 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 oC the total annual production. Seed-
<br />ing is desirable only in areas large enough to intersred or
<br />to prepare a seedbed. SN'itchgrass, sand bluestem, sand
<br />reedgrass, sideoats grams, little bluestem, blur grams, pu-
<br />hrscent whealgrass, and intermediate N~hcatgrass am
<br />suitable for seeding, This soil c:m he srrdwl by using an
<br />inteneeder or x firm, clean sorghum stubble. A grass drill
<br />is required. Frt•edinq early in spring ha: pr.rvr•n moot sue
<br />cessful.
<br />This soil is generally not suited to the rstahlishmrnt
<br />and growth of tyres and sh rubs. Ilmite in~ostigaliun is
<br />needed to determine feasibility and possible tyre :uul
<br />shrub species.
<br />Wildlife is an important secondary use of this wail. The
<br />cropland areas provide favorable habitat for ring-necked
<br />pheasant and mourning dove. Many nong:rme specie. c:rn
<br />be attracted by establishing area_a for nesting and escape
<br />cover. For pheasants, undisturbed nesting cover is rssen
<br />list and. should be -included in plans for habitat devehrp-
<br />ment, especially in areas of intensive agriculture. Range-
<br />land wildlife, for example, deer and antelope, can be at-
<br />tracted by m:maging livestock grazing and mseeding
<br />where nrrdrrl.
<br />'Phis ..:il is nut suita,I to urban ur recrr:diona! drvrlup-
<br />mrnt breause of the flood haranl. Capability subcbus
<br />IVw• imgated, VIw nonirrigated; Sam1y Bottom land
<br />range site.
<br />I1-Bresser sandy loam, 0 to 1 percent slopes. This is
<br />a deep, well drained soil on terraces at elevations of 4,71 NI
<br />to 4,t+llll feet. It formed in alluvium deposited by the
<br />South Platte River. Included in mapping are small areas
<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 brown 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 am
<br />maieratr. Tho efGK•tivr nxrting depth is ill invhrs or
<br />mon•. Surfaa•r nmuff is slow, and Ihr• rnrsion hazard is
<br />IOw.
<br />This soil is used almost entirely for irrigated crops. It
<br />is suited to all crops rnmmonly grown in the area includ-
<br />ing corn, sugar beets, beans, alfalfa, small grain, potatoes.
<br />and anions. An example of a suitable cropping system is ;i
<br />to 4 years of alfalfa followed by corn, corn fur silage,
<br />sugar beets, small grain, or beans. Few conservation prac-
<br />tices are needed to maintain top yields.
<br />All me[hals of irrigation are suitable, but furrow ir-
<br />rigation is the most common. Barnyard manure and eum-
<br />mercial fertilizer are needed for top yields.
<br />Windbreaks and environmental plantings are generally
<br />suited to this soil. Soil blowing, [he principal hxzanl 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 irrigation
<br />may be needed at the time of planting and during dry
<br />perials. Trees that are best suited and have goal survival
<br />are Racky Mountain juniper, eastern redcedar, ponrleroca
<br />pine, Siberian elm, Russianolive, and hackbrrry. Tht•
<br />shrubs best suited am skunkbush sumac, lilac. and Sihrri-
<br />an peashrub.
<br />Wildlife is an important secondary use of this soil.
<br />Ring-necked phr:r-ym[, mourning dove, and many nun
<br />game species ran br attracted by establishing arras for
<br />nrxting and escape souse. For pheasants, undislurlacl
<br />nesting cover is essential and should he included in plans
<br />fur habiL•d development, especially in areas of intensive
<br />agriculture.
<br />This aril has grist potential fur urban and rrc roatiunal
<br />rJecelopment. Lawns, shrubs, and trees grUN' N'r•II. The
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