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<br />SOIL SCR\~L1-
<br />In a t}'pica) prutile the surface layer is dark ~raci;h-
<br />broten, lime-free loamy sand about G inches thick.'1'he;ub-
<br />soil,about 21 inches Chick, also is free of lime and consists
<br />of grayish-brown, brown, and pale-brown sandy loam that
<br />is hard or verc hard when tlr}-. The underlying material
<br />is very pale brown. uoncalcareous loamy sand that extend
<br />to a depth of :i0 inches.
<br />Except in bare areas, the Truckton soils have rapid w,
<br />ter intake but onlc moderate available water holdin
<br />ca achy. III bare :trews, the surface tends to crust. Crustin
<br />reduces venter intake and increases the hazard of wale
<br />erosion. These soils are drouehty, moderate in natur
<br />fertility, and highly susceptible to soil blowing.
<br />Truckton soils are suited to grasses and to small gain
<br />and sorghums. Dlost of the acreage is in native grass. l~rliea
<br />is the main cultivated crop.
<br />Typical profile of a Truckton loamy sand, about 1,100
<br />feet north and 300 feet west of the southeast corner of
<br />section 25, T. 5 S., R. 60 W.:
<br />21~ to 8 Snches, dark grayish-brown (lOYR 4/2) loamy sand,
<br />very dark grayish brown (lOYR 3/2) when moist;
<br />weak, Sue, granular structure to massive (structure•
<br />less) ; slightly hard when dry, loose when moist; noo-
<br />calcareous; clear, wavy boundary.
<br />Bl-G to 10 inches, grayish-brown (lOYR 5/2) light sandy
<br />loam, dsrk grayish brown (lOYR 4/2) when moist
<br />and crushed; weak, medium, prismatic structure that
<br />breaks to weak, medium, subangular blocky structure;
<br />hard when drS, very triable when moist; tongues of
<br />very da rl- graclsh brown (lOYR 3/2) when moist,
<br />extend through horizon; nonce lea reaus; clear, wavy
<br />boundary.
<br />B2t-10 to ?0 inches, brown (lOYR 5/3) sandy loam, brown
<br />(lOYR -k/3) when moist and crushed; weak, medium,
<br />prismatic strutture that breaks to weak, medium. sub-
<br />angular blocky structure; bard [o very hard when
<br />dry, friable when moist; thin, patchy clay skins on
<br />faces oC peds: tongues of dark grayish brawn (IOTR
<br />3/2), when moist, extend to base of horizon; non-
<br />calcareous; clear, wavy boundary.
<br />H3-?0 to 30 inches, pale-brown (lOYR G/3) sands loam, brown
<br />(lOFR 5/3) when moist and crushed; weak, medium
<br />[o coarse, subangular blocky structure; hard when
<br />dry, friable when moist: tongues o[ brown (IOFR
<br />-4/3), ivhea moist, ertend into horizon; noncalcareous;
<br />clear, smooth boundary.
<br />X30 to :i0 inches, eery pale brorva (IOFR 7/3) loamy sand,
<br />pale brown (lOYR 8/3) when moist; massive (struc-
<br />[ureless) ; slightly hard wben dry, loose when moist;
<br />noncalcareous. .
<br />The ?. horizon ranges [rom 4 to 12 inches in thickness and
<br />[rom ]name sand [o sandy loam in texture. The B2t horizon
<br />is d to 1S incites [hick and Is more clayey Chan the d horizon.
<br />Dark streaks or tongues are common In the H horizon.
<br />The Truckton soils brave less clay rand more sand than the
<br />Bresser soils and thinner, less distinct horizons, They have
<br />more cloy and less sand than the Blakeland Bolls and more
<br />distinct horizons.
<br />Truckton loamy sand, 1 to 5 percent slopes 1TrC1.-
<br />This undulating soil occurs on uplands mainly in the tcest-
<br />tern part of the county, just east of Cherry Creek. It has
<br />the profile described as typical for the senes. Runoff is
<br />slow, the intake of water is rapid, and available water
<br />holding ca acity is moderate.
<br />Included wit)t this soil in mappinP were a few small
<br />areas of Blakeland loamy sand and of ~resser sandy loam.
<br />Also included were a few severely eroded areas, less than
<br />100 feet in diameter, that are on crests of ridges on slopes
<br />facing we=_t.
<br />~tost of this soil is cultivated. `Vinter wheat, barley, and
<br />sorghums are common]}- grown. Stubble mulch tillage and
<br />stripcropping arc practice=_ :Itat help to protect this soil
<br />fiem binning. (Capability unit I~'e-5; Sandy Foothill
<br />~•:~nRe site; tree planting suiwbility group 2)
<br />Truckton loamy sand, 5 to 20 percent slopes (TrEI -
<br />'iQ1~s rolling to hilly soil is on uplands in the western
<br />three-fourths of the county. It occurs in scattered areas,
<br />generally Oti the eastern side of major drainageways. The
<br />surface la}-er is about 5 inches thick and the subsoil is
<br />sandy loam about 1? inches duck.
<br />Included with this soil in mapping were a few small
<br />areas of Blal:elaild loamy =_and and of Bresser sandy loam.
<br />Also included were a few small areas of Samsil-Shale out-
<br />crop complex at the base of <_lopes or in gullies.
<br />\4ost of this soil is in native grass. Because of droughti-
<br />ness and a severe hazard of erosion, this soil is not Butted
<br />to cultivated crops. A few deep gullies have formed, and
<br />shale and sandstone are exposed in many places. (Ca-
<br />pability unit VIe~; Sandy Foothill range site; tree plant-
<br />ing suitability group 4)
<br />Weld Series
<br />The tiVeld series consists of deep, well-drained, level
<br />to gently sloping soils that occur on uplands throughout
<br />most of the count}•. These soils developed in material de=
<br />posited by the wind.
<br />In a typical profile rile r_urface layer is grayish-brown,
<br />noncalcareous silt loatri about 5 inches thick. The subsoil,
<br />about 21 inches thick, is brown clay loam in the upper
<br />part, grayish-brown silty clot in the middle part, and light
<br />yellowlsh•brown, limy siltc clay loam in the lower part.
<br />The underlyying material v light yellowish-brown, very
<br />strongly calcareous silt loam that extends to a depth of
<br />mote than 60 inches and i; easily penetrated by roots.
<br />The bVeld soils ]lave a moderate rate of water intake
<br />and high available water holding capacity. They are high
<br />in natural fertility but are susceptible to erosion if not
<br />protected,
<br />These soils are well suited to cultivated crops. FVinter
<br />wheat and other small grains ate suitable crops.
<br />Typical profile of Weld silt loam, 0 to 3 percent slopes,
<br />about 800 feet north and 1.000 feet west of the southeast
<br />corner of section 16, T. 4 ~., R. 59 W.:
<br />al-0 to 5 inches, grayish brown (lOYR 5/?) silt loam, rerS
<br />dark grayish brown (lOYR 3/2) whe¢ moist; moder-
<br />ate, eery fine, graaalar structure; soft when dry, rery
<br />friable when moist; noncalcareous; abrupt, smoo[It
<br />boundary.
<br />B?It-5 [o S inches, brown (IOYR 5/3) henry clay loam, dark
<br />brown (lOYR 3/31 when moist; moder¢te [o strong.
<br />medium, Drismatic structure [hat breaks to moderate.
<br />fine, subangular blocky structure; thin, nearly con-
<br />tinuous clay 81ms on surfaces of peds; noncalcnreous:
<br />clear, smooth boundary.
<br />D3^_t--S to 1-1 inches, graclsh-brown (lOYR 5/2) silty clay,
<br />dark grayish brown (lOYR 4/2) when moist; moder-
<br />ate. medium, Drismatle structure that breaks to mod-
<br />erate to strong. Hue, angular rand subangular blocky
<br />structure: very hard when dry, friable when moist;
<br />thin, nearly coatinnous c1aS films on surfaces of Deds ;
<br />uoncalcnreovs; Blear, wavy boundary.
<br />H3cn-14 to ?6 Inches, Ilght yellowish-brown (2.5Y 8/3) Bitty
<br />clay loam. light ollre brown (2.SY 5/3) when moist;
<br />moderate, Hne, prismatic structure that breaks to mod-
<br />erate [o strong, fine, avgular and subangular blocky
<br />scntc[ure: hard to rery hard when dry, friable wben
<br />moist: thin, patchr clay films o¢ both horizontal and
<br />vertical faces oC Deds; moderate accumulation nC
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