HomeMy WebLinkAbout952594.tiff 12 SOIL SURVEY
This soil has good potential for urban and recreational Wildlife is an important secondary use of this soil. The
development. Increased population growth in the survey cropland areas provide favorable habitat for ring-necked
area has resulted in increased homesite construction. The pheasant and mourning dove. Many nongame species can
chief limiting soil features for urban development are the be attracted by establishing areas for nesting and escape
shrink-swell potential of the subsoil as it wets and dries cover. For pheasants, undisturbed nesting cover is essen-
and the limited ability of this soil to support a load. Septic tial and should be included in plans for habitat develop-
tank absorption fields function properly, but community ment, especially in areas of intensive agriculture. Range-
sewage systems should be provided if the population den- land wildlife, for example, deer and antelope, can be at-
sity increases. Because of the moderately rapid permea- tracted by managing livestock grazing and reseeding
bility of the substratum, sewage lagoons must be sealed. where needed.
Lawns, shrubs, and trees grow well. Capability subclass This soil is not suited to urban or recreational develop-
Ile irrigated. ment because of the flood hazard. Capability subclass
10 Bankard sandy loam, 0 to 3 percent slopes. This IVw irrigated, VIw nonirrigated; Sandy Bottom land
is a deep, somewhat excessively drained soil on flood range site.
plains at elevations of 4,450 to 5,000 feet. It formed in 11—Bresser sandy loam, 0 to 1 percent slopes. This is
stratified recent alluvium along streams and rivers. In- a deep, well drained soil on terraces at elevations of 4,700
eluded in mapping are numerous sand and gravel bars to 4,800 feet. It formed in alluvium deposited by the
and small areas of noncalcareous soils. South Platte River. Included in mapping are small areas
Typically the surface layer of this Bankard soil is of soils that have sand and gravelly sand in the lower
brown sandy loam about 4 inches thick. The underlying part of the substratum.
material to a depth of 60 inches is pale brown calcareous Typically the surface layer is grayish brown sandy loam
sand stratified with thin lenses of sandy loam, loam, and about 11 inches thick. The subsoil is brown and yellowish
fine gravel. brown sandy clay loam about 19 inches thick. The sub-
Permeability is moderately rapid. Available water stratum to a depth of 60 inches is loamy sand.
capacity is low. The effective rooting depth is 60 inches or Permeability and available water capacity are
more. Surface runoff is slow, and the erosion hazard is moderate. The effective rooting depth is 60 inches or
low. more. Surface runoff is slow, and the erosion hazard is
This soil is suited to limited cropping. It is sandy and low.
subject to flooding. Pasture is the best use. Tall wheat- This soil is used almost entirely for irrigated crops. It
grass, tall fescue, and annual sweetclover are some of the is suited to all crops commonly grown in the area includ-
most suitable crops. Light, frequent irrigation by furrows ing corn, sugar beets, beans, alfalfa, small grain, potatoes,
and flooding is best. Commercial fertilizer improves the and onions. An example of a suitable cropping system is 3
amount and value of forage produced.
The potential native vegetation is dominated by to 4 years of alfalfa followed by corn, corn for silage,
switchgrass, indiangrass, sand bluestem, sand reedgrass, sugar beets, small grain, or beans. Few conservation prac-
sideoats grama, needleandthread, and blue grama. Much tices are needed to maintain top yields.
of this range site includes other soils and vegetation in All methods of irrigation are suitable, but furrow ir-
such a complex pattern that it is difficult to map them rigation is the most common. Barnyard manure and com-
separately. Potential production ranges from 2,500 pounds mercial fertilizer are needed for top yields.
per acre in favorable years to 1,500 pounds in unfavorable Windbreaks and environmental plantings are generally
years. As range condition deteriorates, the tall and mid suited to this soil. Soil blowing, the principal hazard in
grasses decrease; blue grama, sand dropseed, and forbs establishing trees and shrubs, can be controlled by cul-
increase; and forage production drops. Undesirable weeds tivating only in the tree row and by leaving a strip of
and annuals invade the site as range condition becomes vegetation between the rows. Supplemental irrigation
poorer. may be needed at the time of planting and during dry
Management of vegetation should be based on taking periods. Trees that are best suited and have good survival
half and leaving half of the total annual production. Seed- are Rocky Mountain juniper, eastern redcedar, ponderosa
ing is desirable only in areas large enough to interseed or pine, Siberian elm, Russian-olive, and hackberry. The
to prepare a seedbed. Switchgrass, sand bluestem, sand shrubs best suited are skunkbush sumac, lilac, and Siberi-
reedgrass, sideoats grama, little bluestem, blue grama, pu- an peashrub.
bescent wheatgrass, and intermediate wheatgrass are Wildlife is an important secondary use of this soil.
suitable for seeding. This soil can be seeded by using an Ring-necked pheasant, mourning dove, and many non-
interseeder or a firm, clean sorghum stubble. A grass drill game species can be attracted by establishing areas for
is required. Seeding early in spring has proven most suc- nesting and escape cover. For pheasants, undisturbed
cessful. nesting cover is essential and should be included in plans
This soil is generally not suited to the establishment for habitat development, especially in areas of intensive
and growth of trees and shrubs. Onsite investigation is agriculture.
needed to determine feasibility and possible tree and This soil has good potential for urban and recreational
shrub species. development. Lawns, shrubs, and trees grow well. The
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