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SHEEP NO. 7 (.O
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SOIL SURVEY OF \\ 111) COUNTY, COLORADO, NORTHERN PART 0
(DROVER NORTH QUADRANGLE) m
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Soil survey
26
If the range is overgrazed, the proportion of preferred The Mitchell soil is deep and well drained. It formed in
forage plants decreases and the proportion of less calcareous loamy alluvium. Typically, the surface layer is
preferred forage plants increases. Therefore, livestock brown and pale brown silt loam 7 inches thick. The
grazing should be managed so that the desired balance underlyingsubsurface layer is
stilt loam
am depth lof hes nche thick.
s Thmore is silt
of preferred species is maintained in the plant loam. The soil is calcareous throughout.
co Range s. Permeability of the Mitchell soil is moderate. Available
condRange seeding suitable e if seedingis in poor
60
the seasonal The ire entstod for r should meet inches or more.water capacity sRunnoff is f slow eto medium,m,andh s the
the requirements rofa livestock icesthat or wildlife, orhazard of water erosion
both. Other management practices are suitable for hazard soil blowing is moderate.
moderate. The
use on this unit are proper range use, deferred grazing, Most of soil l this unit are used as rangeland. A few
and rotation grazing. If the plant .cover is disturbed,
protection from erosion is needed. Loss of the surface areas are used as nonirrigated cropland. Winter wheat is
layer results in a severe decrease in productivity and in the eme main
p croptential plant community on the Kim soil is
the potential of the soil to produce plants suitable for mainly blue grama, western wheatgrass, sedges, and
grazing.
This unit is well o suited l ii wheat, barley, oats, vvegetattion ranges from g500 to 1,500 poul nds. Theon of air-dry
and sorghum. Low annual precipitation is the main 9 mainy
Because for the that can be grown on this unit. potential gralma, western wheatgrass, and fourwingssal bush.
Because precipitation crigsystem th not at includes ient for smallgrain The average annual production of air-dry vegetation
and sum a r fallow
g Y
and summer fcr p is most suitable. Precipitation usually ranges
from 500
e is ov 1,600 ergrazed,azzed, the proportionof preferred
is too low for crops on this unit to make efficient use of forage plants decreases and the proportion of less
fertilizer. preferred forage plants increases. Therefore, livestock
Maintaining so crop residue soil on or near the helps
to razin should be managed so that the desired balance re maintain auca runoff,fil reduces organic matterng, onnd helps u grazing
soil filth and matter content. Stubble- of preferred species is maintained in the plant
mulch farming, striperopping, and minimum tillage help to community.
ommu ityeedin is suitable if the range in poor
control erosion and conserve moisture. Terraces reduce condition. The plants selected for seeding ngeisshould meet
o and the risk of erosion and help to conserve the seasonal requirements of livestock or wildlife, or
moisture. both. Other management practices that are suitable for
This unit t well suited to breaks and
environmental plantings. Supplemental s, may be use and orotation unit
grazi g. If the plant cover deferred
disturrbd,grazing,
needed when planting and during dry periods. protection from erosion is needed. Loss of the surface
This map unit is in capability Plans rangelass IVe. layer results in a severe decrease in productivity and in
nonirrigated, and in Loamy Plains range site. the potential of the unit to produce plants suitable for
it Kim-Mitchell complex, 0 to 6 percent slopes. grazinThis g.
unit is suited to winter wheat, barley, oats, and
map unit is on smooth to slightly dissected plains
and alluvial fans. sorghum. Because precipitation is not sufficient for
This unit is about 45 percent Kim loam and 40 percent annual cropping, a cropping system that includes small
Mitchell silt loam. The components of this unit are so grain and summer fallow is most suitable. Precipitation
intricately intermingled that it was not practical to map usually is too low for crops on this unit to make efficient
use of fertilizer.
them separately at the re used. Maintaining crop residue on or near the surface
Included in this unit are small areas de of Haverson, reduces runoff, reduces soil blowing, and helps to
15 percent
and Keota loamy. Th Included areas make upmaintain soil
1 one
the total acreage. The percentage varies mulch farming,tst iperopp ng andtter minimutmnt.tillag help to
Stubble-
from one area i another.
The Kim soil is deep and well drained. It formed in control erosion and conserve moisture. Terraces reduce
calcareous loamy alluvium. Typically, the surface layer is runoff and the risk of erosion and help to conserve
light brownish gray loam 3 inches thick. The subsurface moisture. to
layer is light brownish gray clay loam 4 inches thick. The e Thon is unite is well plantings. It is Ii ro bed mainly by the hazard
underlying material to a depth of 60 inches or more is where light gray loam. The soil is calcareous throughout. of soda blowing
inOgly small areas or lay is barren
oleared
f
Permeability of the Kim soil is moderate. Available vegetation.
planting. Soil blowing strips reduced be
water capacity is high. Effective rooting depth is 60 for tree ntion . the tree rows can ub leaving a strip of
by
inches or more. Runoff i medium to rapid, and the e cuvegetation between the rows. Supplemental irrigation
hazard of water oronion is slight to moderate. The may be needed when planting and during dry periods.
hazard of soil blowing is moderate.
960465
Li
29
Weld County, Colorado, Northern Part
inches. Included areas make up about 10 percent of the Most
areas
as of
this
s no nonirrigated cropland.
unit
used
as rangeland.
total acreage. areas are
Permeability of this Manter soil is moderately rapid to the main crop.
a depth of 28 inches and rapid below this depth. The potential plant community on this unit is mainly
Available water capacity is moderate. Effective rooting blue grama, western wheatgrass, and founving saltbush.
depth is 60 inches or more. Runoff is slow, and the The average annual production of air-dry vegetation
hazard of water erosion is high. The hazard of soil ranges from 500 to 1,200 pounds.
blowing is moderate. If the range is overgrazed, the proportion of preferred
This unit is used as rangeland. forage plants decreases and the proportion of less
The potential plant community on this unit is mainly preferred forage plants increases. Therefore, livestock
blue grama, needleandthread, prairie sandreed, and sand of preferred species grazing should be as maintained so that the desired balance
in the plant
dropseed. The average annual production of air-dry community.
vegetation ranges from 700 to 1,800 pounds. Range seeding is suitable if the range is in poor
If the range is overgrazed, the proportion of preferred condition. The plants selected for seeding should meet
forage plants decreases and the proportion of less the seasonal requirements of livestock or wildlife, or
preferred forage plants increases. Therefore, livestock both. Other management practices that are suitable for
grazing should be managed so that the desired balance use on this unit are proper range use, deferred grazing,
of preferred species is maintained in the plant and rotation grazing. Livestock grazing should be
community. managed to protect the soil in this unit from erosion.
Range seeding is suitable if the range is in poor This unit is suited to winter wheat, barley, oats, and
condition. The plants selected for seeding should meet sorghum. Because precipitation is not sufficient for
the seasonal requirements of livestock or wildlife, or annual cropping, a cropping system that includes small
both. Other management practices that are suitable for grain and summer fallow is most suitable. Precipitation
use on this unit are proper range use, deferred grazing, usually is too low for crops on this unit to make efficient
and rotation grazing. If the plant cover is disturbed, use of fertilizer.
protection from erosion is needed. Loss of the surface Maintaining crop residue on or near the surface
layer results in a severe decrease in productivity and in reduces soil blowing and helps to maintain soil filth and
the potential of the soil to produce plants suitable for organic matter content. Stubble-mulch farming,
striperopping, and minimum tillage help to control erosion
grazing. and conserve moisture. Terraces reduce runoff and the
This unit is well a suited It s o windbreaks imitedmainlyand risk of erosion and help to conserve moisture.
environmental plantings. is limited by the hazard This unit is well suited to windbreaks and
of soil blowing where the soil is barren of vegetation. environmental plantings. It has few limitations.
Supplemental irrigation may be needed when planting Supplemental irrigation may be needed when planting
and during dry periods. Summer fallow, cultivation for and during dry periods. Summer fallow, cultivation for
weed control, and selection of adapted plants are weed control, and selection of adapted plants are
needed to insure establishment and survival of needed to insure establishment and survival of
seedlings. seedlings.
This map unit is in capability subclass Vle, This map unit is in capability subclass IVe,
nonirrigated, and in Sandy Plains range site. nonirrigated, and in Clayey Plains range site.
rt. 4. Manzanola clay loam, 0 to 3 percent slopes. 37—Midway clay loam, 0 to 9 percent slopes. This
Tf deep, well drained soil is on plains, in swales, and shallow, well drained soil is on slightly dissected to highly
on adjacent stream terraces. It formed in calcareous dissected plains, breaks, and upland ridges. It formed in
clayey alluvium. Slopes are plane or concave. calcareous clayey residuum derived from shale.
Typically, the surface layer is grayish brown heavy clay Typically, the surface layer is grayish brown clay loam
loam 3 inches thick. The subsoil is calcareous clay 22 3 inches thick. Below this is calcareous clay 8 inches
inches thick. The substratum to a depth of 60 inches or thick. Shale is at a depth of 11 inches. Depth to shale
more is calcareous clay and clay loam. ranges from 10 to 20 inches.
Included in this unit are small areas of Aver fine sandy Included in this unit are small areas of Renohill fine
loam and soils that have a sodium content of more than sandy loam, Rock outcrop of shale, and areas of soils
15 percent. Included areas make up about 15 percent of that are ponded intermittently. Included areas make up
the total acreage. about 20 percent of the total acreage.
Permeability of this Manzanola soil is slow. Available Permeability of this Midway soil is slow. Available
water capacity is high. Effective rooting depth is 60 water capacity is low. Effective rooting depth is 10 to 20
inches or more. Runoff is medium to slow, and the inches. Runoff is medium to rapid, and the hazard of
hazard of water erosion is slight. The hazard of soil water erosion is slight to very high. The hazard of soil
blowing is moderate. blowing is moderate.
960465
Soil survey
48
If the range is overgrazed, the proportion of preferred layer results in a severe decrease in productivity and in
forage plants decreases and the proportion of less the potential of the soil to produce plants suitable for
preferred forage plants increases. Therefore, livestock grazing.
grazing should be managed so that the desired balance This unit is well suited to winter wheat, barley, oats,
of preferred species is maintained in the plant and sorghum. Because p pipit ation t m thais t not include sufficient
small
community. annual cropping, a
cro-Range seeding is suitable if the range is in poor grain and summer fallow is most suitable. Precipitation
condition. The plants selected for seeding should meet usually is too low for crops on this unit to make efficient
the seasonal requirements of livestock or wildlife, or use of fertilizer.
both. Other management practices that are suitable for n runoff,Maintaining reduces
p residue
on or blowing, and helps to
ea
r the surface
use on this unit are proper range use, deferred grazing, reduces
and rotation grazing. If the plant cover is disturbed, maintain soil tilth and organic mater content.
imum tillSStuge bble-
protection from erosion is needed. Loss of the surface mulch farming, striperopp g, a
layer results in a severe decrease in productivity and in control erosion and conserve moisture. Terraces reduce
the potential of the soil to produce plants suitable for
runoff and the risk of erosion and help to conserve
grazing. moisture.
This unit is well suited to windbreaks and This unit is well suited to windbreaks and
environmental plantings. It is limited mainly by the hazard environmental plantings. Supplemental irrigation may be
needed when planting and during dry periods.
of soil blowing. Trees need to ise planted among the This map unit is in capability subclass IVe,
covee vegetation t iaio disturbance of the plant nonirrigated, and in Loamy Plains range site.
cover. Supplemental irrigation may be needed when
planting and during dry periods.
This map unit is in capability subclass Vle, 76—Wages fine sandy loam, 6 to 9 percent slopes.
nonirrigated, and in Sandy Plains range site. This deep, well drained soil is on moderately dissected
0 to 6 percent slopes. plains. It formed in calcareous loamy alluvium.
dWages fine sandy loam, Typically, the surface layer is grayish brown fine sandy
eep, well drained soil is on slightly dissected plains loam 4 inches thick. The subsoil is sandy clay loam S
and alluvial fans. It formed in calcareous loamy alluvium. inches thick. The substratum to a depth of 60 inches or
Typically, the surface layer is grayish brown fine sandy more is calcareous loam.
loam 4 inches thick. The subsoil is sandy clay loam 10 Included in this unit are small areas of Kim and
inches thick. The substratum to a depth of 60 inches or Mitchell soils.
more is calcareous loam. Permeability of this Wages soil is moderate. Available
Incuded in tats unit are small areas of Kim soils, water capacity is high. Effective rooting depth is 60
Mitchell soils, and Plainer loam.capacity apa inches or more. Runoff is medium to rapid, and the
Per city is high.p Wages soil is moderate. Available hazard of water erosion is moderate. The hazard of soil
water is Effective rooting depth is 60 blowing is moderate.
inches or more. Runoff is slow to medium, and the This unit is used as rangeland.
hazard of water erosion is slight to moderate. The The potential plant a community on this unit is mainly
hazard Ti nf soil blowing d is rangeland
blue grama, western wheatgrass, sedges, and
This Winter w as et is the main and nonirrigated buffalograss. The average annual production of air-dry
cropland.hp wheat is mu crop. vegetation ranges from 400 to 1,300 pounds.
The potential plant community on this unit and mainly If the range is overgrazed, the proportion of preferred
blue grama, western wheatgrass, sedges, forage plants decreases and the proportion of less
buffalograss.ranges The average annual production 0n of air-dry preferred forage plants increases. Therefore, livestock
vegetation t the range a isovergrazed,from 500 the 5 ro pounds. grazing should be managed so that the desired balance
f is proportion of preferred f preferred species is maintained in the plant
forage plants decreases and the proportion of less community.
preferred forage plants increases. Therefore, livestock Ran a yeeding is suitable if the range is in poor
codi
grazing should be managed so that the desired balancecondition. The plants selected for seeding should meet
of preferred species is maintained in the plant the seasonal requirements of livestock or wildlife, or
community. both. Other management practices that are suitable for
Range seeding isn suitable if the seeding e is in should dr use on this unit are proper range use, deferred grazing,
the condition.s The plants selected for livestock
r meet and rotation grazing. If the plant cover is disturbed,
the seasonal requirements raof icesthat or wildlife, or
rface
Other unit management properot practices ere suitable for layer results in a severe decrease in productivity uand in
use n rotationon this are . fthe plant use, deferred grazing, the potential of the soil to produce plants suitable for
and grazing. If the plant cover is disturbed, razin
protection from erosion is needed. Loss of the surface 9 g.
960465
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