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LOGAN COUNTY, COLORADO
<br />Supplemental irrigation is necessary at the time of
<br />planting and during dry periods. Trees best suited and
<br />having good survival are Rocky Mountain juniper, eastern
<br />redcedar, ponderosa pine, Siberian elm, Russian -olive
<br />and hackberry. Shrubs best suited are skunkbush sumac,
<br />lilac and Siberian peashrub.
<br />Openland wildlife such as pheasant, cottontail rabbit
<br />and mourning dove are suited to this soil. In cropland
<br />areas favorable habitat can be developed by establishing
<br />areas for nesting and escape cover. For pheasants;
<br />undisturbed nesting cover is vital and should be included
<br />in plans for habitat development. Tree and shrub
<br />plantings along fence lines, irrigation ditches, roadsides
<br />and streambanks also help encourage wildlife. Rangeland
<br />wildlife, including antelope and jackrabbit, can be en-
<br />couraged by water developments and types of fencing to
<br />permit unrestricted antelope movement.
<br />Where this soil is used for homesites and other urban
<br />developments, the primary limiting soil features are
<br />seepage and soil blowing. Sealing methods are required to
<br />overcome the excessive seepage in sewage lagoon sites.
<br />This soil should be protected from soil . blowing at all
<br />times by utilization of mulches and vegetative cover.
<br />Capability subclass VIe nonirrigated, IVe irrigated.
<br />61— Manter sandy loam, 0 to 3 percent slopes. This is
<br />a deep, well .drained soil on upland flats, terraces and allu-
<br />vial fans. It formed in calcareous, loamy eolian and alluvi-
<br />al materials. The average annual precipitation ranges
<br />from 13 to 19 inches. Slopes are nearly level to gently
<br />sloping -
<br />Included in this unit are small areas of Ascalon sandy
<br />loam and Chappell sandy loam.
<br />Typically the surface layer is grayish brown sandy loam
<br />about 6 inches thick. The subsoil is dark grayish brown
<br />and brown sandy loam about 18 inches thick and is cal-
<br />careous in the lower part. The substratum is light gray
<br />and pale brown, calcareous sandy loam and loamy sand
<br />extending to, 60 inches or more.
<br />Permeability is moderately rapid. Effective rooting
<br />depth is 60 inches or more. Available water capacity is
<br />moderate. Surface runoff is slow, the erosion hazard is
<br />slight, and the soil blowing hazard is moderate.
<br />This soil is used mainly for nonirrigated and irrigated
<br />cropland. Some areas are used for grazing. Wheat is the
<br />principal crop grown in nonirrigated areas. In irrigated
<br />areas corn, alfalfa and sugar beets are the main crops.
<br />In nonirrigated cropland areas the main concerns of
<br />management are conserving soil moisture and protecting
<br />foil from blowing. Stubble mulch tillage and incorporating
<br />p residues are practices needed to protect soil from
<br />Mowing, improve soil tilth and conserve moisture. Plant,
<br />mg crops in alternate strips at right angles to the prevah-
<br />ing wind is effective in protecting soil from blowing.
<br />Close grown crops are also effective in protecting soil
<br />from blowing. Tillage should be kept to a minimum.
<br />In irrigated areas the main concerns of management
<br />pre proper use of irrigation water, soil fertility and soil
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<br />blowing. This soil is suited to furrow, border or sprinkler
<br />irrigation methods. Leveling and irrigation water manage-
<br />ment are necessary to obtain uniform distribution and ef-
<br />ficient use of water. Frequent light irrigations are benefi-
<br />cial on this soil because of its moderate available water
<br />capacity. Incorporating crop residues is needed to reduce
<br />soil blowing during periods when the soil is not protected
<br />by growing crops. It also improves soil tilth. Applications
<br />of manure and commercial fertilizer containing nitrogen
<br />and phosphorus are needed in maintaining soil fertility.
<br />The rangeland vegetation of this soil consists of sand
<br />bluestem, sand reedgrass, sand dropseed, little bluestem,
<br />blue grams, needleandthread, and switchgrass. Sand
<br />sagebrush is interspersed with the grasses. To maintain a
<br />productive growth of forage plants, proper grazing use is
<br />essential. Periodic deferment of grazing during the grow-
<br />ing season is beneficial in maintaining and improving
<br />range condition. Fencing is necessary to obtain more
<br />uniform distribution of grazing animals. Brush manage-
<br />ment is needed when sand sagebrush becomes excessively
<br />dense and reduces forage production.
<br />Windbreaks and environmental plantings are generally
<br />suited to this soil. Soil blowing is the principal concern to
<br />establishing trees and shrubs. This hazard can be over-
<br />come by cultivating only in the tree row and by leaving a
<br />strip of vegetative cover between the rows. Supplemental
<br />irrigation is necessary at the time of planting and during
<br />dry periods. Trees best suited and having good survival
<br />are Rocky Mountain juniper, eastern redcedar, ponderosa
<br />pine, Siberian elm, Russian -olive and hackberry. Shrubs
<br />best suited are skunkbush sumac, lilac and Siberian
<br />peashrub.
<br />Openland wildlife such as pheasant, cottontail rabbit
<br />and mourning dove are suited to this soil. In cropland
<br />areas favorable habitat can be developed by establishing
<br />areas for nesting and escape cover. For pheasants,
<br />undisturbed nesting cover is vital and should be included
<br />in plans for habitat, development. Tree and shrub
<br />plantings along fence limes, irrigation ditches, roadsides
<br />and streambanks also help encourage wildlife. Rangeland
<br />wildlife, including antelope and jackrabbits, can be en-
<br />couraged by water developments.
<br />This soil is well suited for use as homesites and other
<br />urban developments, with only minor limitations that can
<br />be easily :modified. Sealing methods are required to over-
<br />come the excessive seepage if the soil is used for sewage
<br />lagoon sites. Capability subclass IIIe nonirrigated, IIe ir-
<br />rigated.
<br />62— Manter sandy loam, 3 to 5 percent slopes. This is
<br />a deep, well drained soil on upland hills and ridges. It
<br />formed in calcareous, loamy eolian and alluvial materials.
<br />i The :visage annual 'precipitation ranges from 13 to 19
<br />inches. Slopes are moderately sloping.
<br />Included in this unit are small areas of Ascalon sandy
<br />loam and Chappell sandy loam. The Chappell soil is on
<br />small alluvial fans.
<br />Typically the surface layer is grayish brown sandy
<br />loam about 6 inches thick. The subsoil is dark grayish
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