HomeMy WebLinkAbout20060936.tiff 14 SOIL SURVEY
ing corn, sugar beets, beans, alfalfa, small grain, The potential native vegetation is dominated by blue
potatotes, and onions. An example of a suitable cropping grama. Several mid grasses, such as western wheatgrass
system is 3 to 4 years of alfalfa followed by corn, corn for and needleandthread, are also present. Potential produc-
silage, sugar beets, small grain, or beans. Few conserva- tion ranges from 1,600 pounds per acre in favorable years
tion practices are needed to maintain top yields. to 1,000 pounds in unfavorable years. As range condition
All methods of irrigation are suitable, but furrow ir- deteriorates, the mid grasses decrease; blue grama, buf-
rigation is the most common. Barnyard manure and com- falograss, snakeweed, yucca, and fringed sage increase;
mercial fertilizer are needed for top yields. and forage production drops. Undesirable weeds and an-
Windbreaks and environmental plantings of trees and nuals invade the site as range condition becomes poorer.
shrubs commonly grown in the area are generally well Management of vegetation on this soil should be based
suited to this soil. Cultivation to control competing on taking half and leaving half of the total annual produc-
vegetation should be continued for as many years as tion. Seeding is desirable if the range is in poor condition.
possible following planting. Trees that are best suited and Sideoats grama, little bluestem, western wheatgrass, blue
have good survival are Rocky Mountain juniper, eastern grama, pubescent wheatgrass, and crested wheatgrass are
redcedar, ponderosa pine, Siberian elm, Russian-olive, and suitable for seeding. The grass selected should meet the
hackberry. The shrubs best suited are skunkbush sumac, seasonal requirements of livestock. It can be seeded into
lilac, Siberian peashrub, and American plum. a clean, firm sorghum stubble or it can be drilled into a
Openland wildlife, such as pheasant, mourning dove, firm prepared seedbed. Seeding early in spring has
and cottontail, are best suited to this soil. Wildlife habitat proven most successful.
development, including tree and shrub plantings and Windbreaks and environmental plantings of trees and
grass plantings to serve as nesting areas, should be suc- shrubs commonly grown in the area are generally well
cessful without irrigation during most years. Under ir- suited to this soil. Cultivation to control competing
rigation, good wildlife habitat can be established, benefit- vegetation should be continued for as many years as
possible following planting. Trees that are best suited and
ing many kinds of openland wildlife.
This soil has good potential for urban and recreational have good survival are Rocky Mountain juniper, eastern
redcedar, ponderosa pine, Siberian elm, Russian-olive, and
developments. Road design can be modified to compen-
sate for the limited capacity of this soil to support a load. hackberry. The shrubs best suited are skunkbush sumac,
lilac, Siberian peashrub, and American plum.
Capability class I irrigated.
4115—Colby loam, 1 to 3 percent slopes. This is a deep, Openland wildlife, such as pheasant, mourning dove,
r^ well drained soil on uplands at elevations of 4,850 to 5,050 and cottontail, and rangeland wildlife, such as antelope,
cottontail, and coyote, are best suited to this soil. Under
feet. It formed in calcareous eolian deposits.
Typically the surface layer is pale brown loam about 12 irrigation, good wildlife habitat can be established,
inches thick. The underlying material is very benefiting many kinds of openland wildlife. Forage
Yi g pale brown production is typically low on rangeland, and grazing
silt loam to a depth of 60 inches. management is needed if livestock and wildlife share the
Permeability is moderate. Available water capacity is range. Livestock watering facilities also are utilized by
high. The effective rooting depth is 60 inches or more. various wildlife species.
Surface runoff is medium, and the erosion hazard is This soil has good potential for urban and recreational
moderate. development. Road design can be modified to compensate
In irrigated areas this soil is suited to all crops com- for the limited capacity of this soil to support a load.
monly grown in the area, including corn, sugar beets, Capability subclass Ile irrigated, IVe nonirrigated;
beans, alfalfa, small grain, potatoes, and onions. An exam- Loamy Plains range site.
ple of a suitable cropping system is 3 to 4 years of alfalfa El 16—Colby loam, 3 to 5 percent slopes. This is a deep,
followed by corn, corn for silage, sugar beets, small grain, well drained soil on upland hills and ridges at elevations
or beans. Land leveling, ditch lining, and installing of 4,850 to 5,050 feet. It formed in calcareous eolian
pipelines may be needed for proper water application. deposits. Included in mapping are small areas of soils that
All methods of irrigation are suitable, but furrow ir- have fine sandy loam or loam underlying material.
rigation is the most common. Barnyard manure and com- Typically the surface layer is pale brown loam about 10
mercial fertilizer are needed for top yields. inches thick. The underlying material is very pale brown
In nonirrigated areas this soil is suited to winter wheat, silt loam to a depth of 60 inches.
barley, and sorghum. Most of the acreage is planted to Permeability is moderate. Available water capacity is
winter wheat. The predicted average yield is 28 bushels high. The effective rooting depth is 60 inches or more.
per acre. The soil is summer fallowed in alternate years Surface runoff is medium to rapid, and the erosion hazard
to allow moisture accumulation. Generally precipitation is is moderate.
too low for beneficial use of fertilizer. In irrigated areas this soil is suited to crops commonly
Stubble mulch farming, striperopping, and minimum til- grown in the area. Perennial grasses and alfalfa or close
lage are needed to control soil blowing and water erosion. grown crops should be grown at least 50 percent of the
r Terracing may also be needed to control water erosion. time. Contour ditches and corrugations can be used in ir-
EXHIBIT
2006-0936 1 �_
n
WELD COUNTY, COLORADO, SOUTHERN PART 15
rigating close grown crops and pasture. Furrows, contour of 4,850 to 5,050 feet. It formed in calcareous eolian
furrows, and cross slope furrows are suitable for row deposits. Included in mapping are small areas of soils that
cr. Sprinkler irrigation is also desirable. Keeping til- have fine sandy loam or loam underlying material and
la .o a minimum and utilizing crop residue help to con- small areas of soils that are shallow to moderately deep
trol erosion. Maintaining fertility is important. Crops over shale and sandstone.
respond to applications of phosphorus and nitrogen. Typically the surface layer of this Colby soil is pale
In nonirrigated areas this soil is suited to winter wheat. brown loam about 7 inches thick. The underlying material
The predicted average yield is 28 bushels per acre. The is very pale brown silt loam to a depth of 60 inches.
soil is summer fallowed in alternate years to allow Permeability is moderate. Available water capacity is
moisture accumulation. Generally precipitation is too low high. The effective rooting depth is 60 inches or more.
for beneficial use of fertilizer. Surface runoff is rapid, and the erosion hazard is high.
Stubble mulch farming, striperopping, and minimum til- This soil is suited to limited cropping. Intensive
lage are needed to control soil blowing and water erosion. cropping is hazardous because of erosion. The cropping
Terracing also may be needed to control water erosion. system should be limited to close grown crops, such as al-
The potential native vegetation is dominated by blue falfa, wheat, and barley. This soil also is suited to ir-
grama. Several mid grasses, such as western wheatgrass rigated pasture. A suitable cropping system is 3 to 4
and needleandthread, are also present. Potential produc- years of alfalfa followed by 2 years of corn and small
tion ranges from 1,600 pounds per acre in favorable years grain and alfalfa seeded with a nurse crop.
to 1,000 pounds in unfavorable years. As range condition Close grown crops can be irrigated from closely spaced
deteriorates, the mid grasses decrease; blue grama, buf- contour ditches or sprinklers. Contour furrows or sprin-
falograss, snakeweed, yucca, and fringed sage increase; klers should be used for new crops. Applications of
and forage production drops. Undesirable weeds and an- nitrogen and phosphorus help in maintaining good produc-
nuals invade the site as range condition becomes poorer. tion.
Management of vegetation on this soil should be based The potential native vegetation is dominated by blue
on taking half and leaving half of the total annual produc- grama. Sideoats grama, little bluestem, western wheat-
tion. Seeding is desirable if the range is in poor condition. grass, and sedge are also prominent. Potential production
Sideoats grama, little bluestem, western wheatgrass, blue ranges from 1,800 pounds per acre in favorable years to
grama, pubescent wheatgrass, and crested wheatgrass are 1,500 pounds in unfavorable years. As range condition
suitable for seeding. The grass selected should meet the deteriorates, the sideoats grama and little bluestem
seasonal requirements of livestock. It can be seeded into decrease, forage production drops, and blue grama, buf-
arn, firm sorghum stubble, or it can be drilled into a falograss, and several perennial forbs and shrubs in-
£u._. prepared seedbed. Seeding early in spring has crease. Undesirable weeds and annuals invade the site as
proven most successful. range condition becomes poorer.
Windbreaks and environmental plantings of trees and Management should be based on taking half and leaving
shrubs commonly grown in the area are generally well half of the total annual production. Seeding is desirable if
suited to this soil. Cultivation to control competing the range is in poor condition. Sideoats grams, little
vegetation should be continued for as many years as bluestem, western wheatgrass, and pubescent wheatgrass
possible following planting. Trees that are best suited and are suitable for seeding. The grass selected should meet
have good survival are Rocky Mountain juniper, eastern the seasonal needs of livestock. It can be seeded into a
redcedar, ponderosa pine, Siberian elm, Russian-olive, and clean, firm sorghum stubble, or it can be drilled into a
hackberry. The shrubs best suited are skunkbush sumac, firm prepared seedbed. Plowing and drilling should be on
lilac, Siberian peashrub, and American plum. the contour to minimize runoff and soil losses. Seeding
Openland wildlife, such as pheasant, mourning dove, early insspring has proven most successful.
and cottontail, and rangeland wildlife, such as antelope, Windbreaks and environmental plantings of trees and
cottontail, and coyote, are best suited to this soil. Under shrubs commonly grown in the area are generally well
irrigation, good wildlife habitat can be established, suited to this soil. Cultivation to control competing
benefiting many kinds of openland wildlife. Forage vegetation should be continued for as many years as
production is typically low on rangeland, and grazing possible following planting. Trees that are best suited and
management is needed if livestock and wildlife share the have good survival are Rocky Mountain juniper, eastern
range. Livestock watering facilities also are utilized by redcedar, ponderosa pine, Siberian elm, Russian-olive, and
various wildlife species. hackberry. The shrubs best suited are skunkbush sumac,
This soil has good potential for urban and recreational lilac, Siberian peashrub, and American plum.
developments. Road design can be modified to compen- Openland wildlife, such as pheasant, mourning dove,
sate for the limited capacity of this soil to support a load. and cottontail, and rangeland wildlife, such as antelope,
Capability subclass IIIe irrigated, IVe nonirrigated; cottontail, and coyote, are best suited to this soil. Under
Loamy Plains range site. irrigation, good wildlife habitat can be established,
17—Colby loam, 5 to 9 percent slopes. This is a deep, benefiting many kinds of openland wildlife. Forage
wra 4rained soil on upland hills and ridges at elevations production is typically low on rangeland, and grazing
24 SOIL SURVEY
Permeability is moderate. Available water capacity is land wildlife, for example, the pronghorn antelope, can he
high. The effective rooting depth is 60 inches or more. attracted by developing livestock watering facilities
Surface runoff is medium, and the erosion hazard is managing livestock grazing, and reseeding where needed.
moderate. This soil has good potential for urban and recreation
In irrigated areas this soil is suited to crops commonly development. Increased population growth in the survey
grown in the area. Perennial grasses and alfalfa or close area has resulted in increased homesite construction. Thi
grown crops should be grown at least 50 percent of the chief limiting soil feature for urban development and row
time. Contour ditches and corrugations can be used in ir- construction is the limited capacity of this soil to suppor
rigating close grown crops and pasture. Furrows, contour a load. Septic tank absorption fields function properly, bu
furrows, and cross slope furrows are suitable for row community sewage systems should be provided if thi
crops. Sprinkler irrigation is also suggested. Keeping til- population density increases. Because of the permeabilit;
lage to a minimum and utilizing crop residue help to con- of the substratum, sewage lagoons must be sealed
trol erosion. Maintaining fertility is important. Crops Lawns, shrubs, and trees grow well. Capability subclas
respond to applications of phosphorus and nitrogen. IIIe irrigated, IVe nonirrigated; Loamy Plains range site
In nonirrigated areas this soil is suited to winter wheat,
barley, and sorghum. Most of the acreage is planted to *34—Kim loam, 5 to 9 percent slopes. This is a deer
winter wheat. The predicted average yield is 28 bushels well drained soil on plains and alluvial fans at elevation
per acre. The soil is summer fallowed in alternate years of 4,900 to 5,250 feet. It formed in mixed eolian deposit
to allow moisture accumulation. Generally precipitation is and parent sediment from a wide variety of bedrock. In
too low for beneficial use of fertilizer. eluded in mapping are small areas of soils that have
Stubble mulch farming, striperopping, and minimum til- loamy sand underlying material.
lage are needed to control soil blowing and water erosion. Typically the surface layer is brown and pale brows
Terracing also may be needed to control water erosion. loam about 10 inches thick. The upper 25 inches of the un
The potential native vegetation is dominated by blue derlying material is pale brown loam. The lower part to
grama. Several mid grasses, such as western wheatgrass depth of 60 inches is pale brown fine sandy loam.
and needleandthread, are also present. Potential produc- Permeability is moderate. Available water capacity i
tion ranges from 1,600 pounds per acre in favorable years high. The effective rooting depth is 60 inches or more
to 1,000 pounds in unfavorable years. As range condition Surface runoff is rapid, and the erosion hazard i
,^ deteriorates, the mid grasses decrease; blue grama, buf- moderate.
falograss, snakeweed, yucca, and fringed sage increase; This soil is suited to limited cropping. Intensive
and forage production drops. Undesirable weeds and an- cropping is hazardous because of erosion. The cropping
nuals invade the site as range condition becomes poorer. system should be limited to such close grown crops as al
Management of vegetation on this soil should be based falfa, wheat, and barley. This soil also is suited to ir
on taking half and leaving half of the total annual produc- rigated pasture. A suitable cropping system is 3 to
tion. Seeding is desirable if the range is in poor condition. years of alfalfa followed by 2 years of corn and smal
Sideoats grama, little bluestem, western wheatgrass, blue grain and alfalfa seeded with a nurse crop.
grama, pubescent wheatgrass, and crested wheatgrass are Close grown crops can be irrigated from closely spaces
suitable for seeding. The grass selected should meet the contour ditches or sprinklers. Contour furrows or sprin
seasonal requirements of livestock. It can be seeded into klers should be used for new crops. Applications o
a clean, firm sorghum stubble, or it can be drilled into a nitrogen and phosphorus help in maintaining good produc
furs prepared seedbed. Seeding early in spring has tion.
proven most successful. The potential native vegetation is dominated by blu
Windbreaks and environmental plantings of trees and grama. Sideoats grams, little bluestem, western wheat
shrubs commonly grown in the area are generally well grass, and sedge are also prominent. Potential productioi
suited to this soil. Cultivation to control competing ranges from 1,800 pounds per acre in favorable years t
vegetation should be continued for as many years as 1,500 pounds in unfavorable years. As range conditioi
possible following planting. Trees that are best suited and deteriorates, the sideoats grams and little bluester
have good survival are Rocky Mountain juniper, eastern decrease; forage production drops; and blue grama, but
redcedar, ponderosa pine, Siberian elm, Russian-olive, and falograss, and several perennial forbs and shrubs in
hackberry. The shrubs best suited are skunkbush sumac, crease. Undesirable weeds and annuals invade the site a
lilac, Siberian peashrub, and American plum. range condition becomes poorer.
Wildlife is an important secondary use of this soil. The Management of vegetation should be based on takim
cropland areas provide favorable habitat for ring-necked half and leaving half of the total annual production. Seed
pheasant and mourning dove. Many nongame species can ing is desirable if the range is in poor condition. Sideoat
be attracted by establishing areas for nesting and escape grams, little bluestem, western wheatgrass, and pu
cover. For pheasants, undisturbed nesting cover is essen- bescent wheatgrass are suitable for seeding. The gras
e"1 tial and should be included in plans for habitat develop- selected should meet the seasonal needs of livestock. I
ment, especially in areas of intensive agriculture. Range- can be seeded into a clean, firm sorghum stubble, or i
WELD COUNTY, COLORADO, SOUTHERN PART 25
can be drilled into a firm prepared seedbed. Plowing and Permeabilty is rapid. Available water capacity is
dr j g on the contour minimize runoff and soil losses. moderate. The water table is usually about 24 to 36 inches
Si- g early in spring has proven most successful. below the surface. Surface runoff is slow, and the erosion
.ndbreaks and environmental plantings are generally hazard is low.
well suited to this soil. Cultivation to control competing This unit is used as rangeland and irrigated cropland.
vegetation should be continued for as many years as Cropping in irrigated areas is limited to the crops
possible following planting. Trees that are best suited and tolerant of water and salts. Light, frequent irrigations by
have good survival are Rocky Mountain juniper, eastern furrows and flooding reduce the salts accumulation.
redcedar, ponderosa pine, Siberian elm, Russian-olive, and Pasture is the best use. Tall wheatgrass, tall fescue, and
hackberry. The shrubs best suited are skunkbush sumac, annual sweetclover are some of the best suited crops.
lilac, Siberian peashrub, and American plum. Commercial fertilizers improve the amount and value of
Wildlife is an important secondary use of this soil. The forage produced.
cropland areas provide favorable habitat for ring-necked The potential native vegetation on this unit is
pheasant and mourning dove. Many nongame species can dominated by switchgrass, little bluestem, sand reedgrass,
be attracted by establishing areas for nesting and escape and western wheatgrass. Indiangrass, sand bluestem,
cover. For pheasants, undisturbed nesting cover is essen- prairie cordgrass, slender wheatgrass, alkali sacaton, salt-
tial and should be included in plans for habitat develop- grass, sedge, and rush are also present. Potential produc-
ment, especially in areas of intensive agriculture. Range- tion ranges from 4,000 pounds per acre in favorable years
land wildlife, for example, the pronghorn antelope, can be to 3,000 pounds in unfavorable years. As range condition
attracted by developing livestock watering facilities, deteriorates, the switchgrass, sand bluestem, indiangrass,
managing livestock grazing, and reseeding where needed. little bluestem, and prairie cordgrass decrease and salt-
This soil has good potential for urban and recreational grass, blue grama, sand dropseed, sedge, and rush in-
development. Increased population growth in the survey crease. Undesirable weeds and annuals invade the site as
area has resulted in increased homesite construction. The range condition becomes poorer.
chief limiting soil feature for urban development and road Management of vegetation on this unit should be based
construction is the limited capacity of this soil to support on taking half and leaving half of the total annual produc-
a load. Septic tank absorption fields function properly, but tion. Seeding is desirable if the range is in poor condition.
community sewage systems should be provided if the Switchgrass, sand bluestem, sand reedgrass, western
population density increases. Because of the permeability wheatgrass, indiangrass, pubescent wheatgrass, and inter-
of,.We substratum, sewage lagoons must be sealed. mediate wheatgrass are suitable for seeding. The plants
L. 3, shrubs, and trees grow well. Capability subclass selected should meet the seasonal requirements of
IVe irrigated, VIe nonirrigated; Loamy Plains range site. livestock. They can be seeded into a clean, firm sorghum
35—Loup-Boel loamy sands, 0 to 3 percent slopes. stubble, or they can be drilled into a firm prepared
This level to nearly level map unit is on stream bottoms seedbed. Seeding early in spring has proven most success-
and in drainageways of the sandhills at elevations of 4,550 ful. Capability subclass IVw irrigated, VIw nonirriated;
to 4,750 feet. The Loup soil occupies the lower or depres- Sandy Meadow range site.
sional areas, which receive additional runoff. It makes up 36—Midway-Shingle complex, 5 to 20 percent slopes.
about 55 percent of the unit. The Boel soil occupies the This moderately sloping to strongly sloping map unit is on
slightly higher elevations. It makes up about 35 percent upland hills and ridges at elevations of 5,050 to 5,250 feet.
of the unit. About 10 percent of the unit is Osgood sand The Midway soil makes up about 50 percent of the unit,
and Valent sand. and the Shingle soil about 35 percent. About 15 percent is
The Loup soil is deep and poorly drained. It formed in Renohill clay loam and Tassel fine sandy loam. The Mid-
sandy alluvium. Typically the surface layer is very dark way soil differs from the Shingle soil in having more than
grayish brown, mottled loamy sand about 16 inches thick. 35 percent clay in the underlying material.
The upper 24 inches of the underlying material is light The Midway soil is shallow and well drained. It formed
brownish gray, mottled loamy sand. The lower part to a in residuum from calcareous shale. Typically the surface
depth of 60 inches is light brownish gray, mottled sandy layer is light olive brown clay about 7 inches thick. The
loam. underlying material is light brownish gray clay about 6
Permeability is rapid. Available water capacity is inches thick. Depth to calcareous clayey shale is about 13
moderate. The water table is at or near the surface in inches.
spring and about 36 inches below the surface in the fall. Permeability is slow. Available water car telly is low.
Surface runoff is slow, and the erosion hazard is low. The effective rooting depth is 10 to 20 inches. Surface ru-
The Boel soil is deep and somewhat poorly drained. It noff is rapid, and the erosion hazard is moderate to high.
formed in stratified sandy alluvium. Typically the surface The Shingle soil also is shallow and well drained and
layer is grayish brown loamy sand about 14 inches thick. formed in residuum from calcareous shale. Typically the
The underlying material to a depth of 60 inches is pale surface layer is grayish brown loam about 6 inches thick.
w and very pale brown, stratified, mottled loamy The underlying material is light yellowish brown clay
sa
loam about 12 inches thick. Depth to calcareous clayey
50 SOIL SURVEY
sugar beets, small grain, or beans. Few conservation prac- The potential native vegetation is dominated by blip
tices are needed to maintain top yields. grama. Several mid grasses, such as western wheatgras;
All methods of irrigation are suitable, but furrow ir- and needleandthread, are also present. Potential produc
rigation is the most common. Barnyard manure and com- tion ranges from 1,600 pounds per acre in favorable year
mercial fertilizer are needed for top yields. to 1,000 pounds in unfavorable years. As range conditioi
Windbreaks and environmental plantings generally are deteriorates; the mid grasses decrease; blue grama, buf
well suited to this soil. Summer fallow a year before falograss, snakeweed, yucca, and fringed sage increase
planting and continued cultivation for weed control are and forage production drops. Undesirable weeds and an
needed to insure establishment and survival of plantings. nuals invade the site as range condition becomes poorer.
Trees that are best suited and have good survival are Management of vegetation on this soil should be base
Rocky Mountain juniper, eastern redcedar, ponderosa on taking half and leaving half of the total annual produc
pine, Siberian elm, Russian-olive, and hackberry. The tion. Seeding is desirable if the range is in poor conditior
shrubs best suited are skunkbush sumac, lilac, Siberian Sideoats grama, little bluestem, western wheatgrass, blu
peashrub, and American plum. grama, pubescent wheatgrass, and crested wheatgrass ar
Openland wildlife, such as pheasant, mourning dove, suitable for seeding. The grass selected should meet th
and cottontail, are best suited to this soil. Wildlife habitat seasonal requirements of livestock. It can be seeded int
development, including tree and shrub plantings and a clean, firm sorghum stubble, or it can be drilled into
grass plantings to serve as nesting areas, should be suc- firm prepared seedbed. Seeding early in spring ha
cessful without irrigation in most years. Under irrigation, proven most successful.
good wildlife habitat can be established, benefiting many Windbreaks and environmental plantings are generall
kinds of openland wildlife. well suited to this soil. Summer fallow a year befor
This soil has good potential for urban and recreational planting and continued cultivation for weed control ar
development. The chief limiting soil features for urban needed to insure establishment and survival of planting
development are the shrink-swell potential of the subsoil Trees that are best suited and have good survival ar
as it wets and dries and the limited capacity of the soil to Rocky Mountain juniper, eastern redcedar, ponderos
support a load. Lawns, shrubs, and trees grow well. Capa- pine, Siberian elm, Russian-olive, and hackberry. Th
bility class I irrigated. shrubs best suited are skunkbush sumac, lilac, Siberia
•79—Weld loam, 1 to 3 percent slopes. This is a deep, peashrub, and American plum.
well drained soil on smooth plains at elevations of 4,850 to Openland wildlife, such as pheasant, mourning dovi
5,000 feet. It formed in eolian deposits. Included in and cottontail, are best suited to this soil. Wildlife habits
mapping are small areas of soils that have a subsoil of development, including tree and shrub plantings an
loam and light clay loam. Also included are some leveled grass plantings to serve as nesting areas, should be sip
areas. cessful without irrigation during most years. Under is
Typically the surface layer of this Weld soil is brown rigation, good wildlife habitat can be established, benefit
loam about 8 inches thick. The subsoil is brown and pale ing many kinds of openland wildlife.
brown heavy clay loam and light clay about 20 inches This soil has good potential for urban and recreation:
thick. The substratum to a depth of 60 inches is silt loam. development. The chief limiting soil features for urba
Permeability is slow. Available water capacity is high. development are the shrink-swell potential of the subso
The effective rooting depth is 60 inches or more. Surface as it wets and dries and the limited capacity of the soil t
runoff is slow, and the erosion hazard is low. support a load. Lawns, shrubs, and trees grow well. Cap:
In irrigated areas this soil is suited to all crops corn- bility subclass IIe irrigated, Inc nonirrigated; Loam
monly grown in the area, including corn, sugar beets (fig. Plains range site.
8), beans, alfalfa, small grain, and onions. An example of a 80—Weld loam, 3 to 5 percent slopes. This is a dee,
suitable cropping system is 3 to 4 years of alfalfa fol- well drained soil on plains at elevations of 4,850 to 5,0(
lowed by corn, corn for silage, sugar beets, small grain, or feet. It formed in eolian deposits. Included in mapping ar
beans. Land leveling, ditch lining, and installing pipelines small areas of soils that have a subsoil of loam and ligl
are needed for proper water applications. clay loam.
All methods of irrigation are suitable, but furrow ir- Typically the surface layer is brown loam about
rigation is the most common. Barnyard manure and com- inches thick. The subsoil is brown and pale brown heav
mercial fertilizer are needed for top yields. clay loam and light clay about i8 inches thick. The sul
This soil is well suited to winter wheat, barley, and stratum to a depth of 60 inches is silt loam.
sorghum if it is summer fallowed in alternate years. Permeability is slow. Available water capacity is hig
Winter wheat is the principal crop. The predicted average The effective rooting depth is 60 inches or more. Surfa(
yield is 33 bushels per acre. If the crop is winterkilled, runoff is medium, and the erosion hazard is moderate.
spring wheat can be seeded. Generally precipitation is too In irrigated areas this soil is suited to most of the croi
low for beneficial use of fertilizer. commonly grown in the area, such as corn, alfalfa, whea
Stubble mulch farming, striperopping, and minimum til- and barley. Sugar beets are often grown. The soil
lage are needed to control soil blowing and water erosion. suited to irrigated pasture. Ditch lining and installir
Terracing also may be needed to control water erosion. pipelines are needed for proper water application.
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