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<br />capacity is high. These soils are moderately
<br />alkaline. Their root zone extends to a depth of 60
<br />inches or more. They are used for pasture and
<br />farming,
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<br />Representative profile of Bloom silt loam, in native
<br />grass, 0.4 mile south and 200 feet west of the north-
<br />east corner of sec. 5, T.21 S., R 62 W.
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<br />AI-O to 8 inches, light brownish-gray(IOYR 6/2) silt
<br />loam, dark grayish brown (IOYR 412) and has
<br />few, fine, faint, yellowish-brown (IOYR S/4)
<br />mottles when moist; weak, thin. platy structure;
<br />hard, friable; slightly stick')' and slightly plastic:
<br />many fine and very fine roots; calcareous;
<br />moderately alkaline: clear, smooth boundary.
<br />A3g-8to14 inches, light-gray (IOYR 7/2) silty clay
<br />loam, dark grayish brown (IOYR 4/2) and has
<br />few, fine, faint, yellowish-brown (IOYR 5/4)
<br />monies when moist: weak, thick, platy
<br />structure: hard, firm: slightly stick and slightly
<br />plastic; common fine and very fine roots;
<br />calcareous: moderately alkaline: abrupt, smooth
<br />boundal)'.
<br />CIg-14 to 35 inches, light-gray (IOYR 7/2) silty clay
<br />loam, dark gray (IOYR4/2) and has common,
<br />fine faint, strong-brown (7.5YR 5/6) mottles
<br />when moist; weak. medium, angular blocky
<br />structure; hard, firm; slightly sticky and plastic;
<br />common fine and very fine roots; calcareous;
<br />moderately alkaline; clear, smooth boundary.
<br />C2g-3S to 60 inches, light-gray and gray (IOYR 7/2,
<br />6/1) silty clay loam and thin seams ofloamy
<br />vel)' fine sand; dark greenish-gray (SGY 4/1)
<br />mottles and few, medium, strong.brown
<br />(7,SYR S/6 monIes when moist: massive; hard,
<br />firm: nonsticky to slightly sticky: few vel)' fine
<br />roots; calcareous; moderately alkaline.
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<br />The A and B horizons range from I OYR to 2.5Y in
<br />hue. The A I horizon is variable in texture, but it is
<br />mostly silt loam or loam. Th A3g and Clg horizons
<br />are mostly silty clay loam. The C horizon is silty
<br />clay loam stratified with thin seams of loamy very
<br />fine sand. It ranges from dark grayish brown, in hue
<br />of2.5Yand 10YR, to greenish gray and bluish gray,
<br />in hue of 50Y and 5B. In places the Cg horizon is
<br />underlain by wet sand or fine gravel at a dept of 40
<br />inches or more.
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<br />Bm-Bloom silt loam. This soil is along the major
<br />drainageways. The areas are elongated and cover as
<br />much as 400 acres.
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<br />Included with this soil in mapping are areas of
<br />Apishapa silty clay that make up about 10 percent of
<br />the acreage. Also included are small areas of soils
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<br />that are similar to the Bloom soils but are poorly
<br />drained.
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<br />Runoff is slow, and the hazard of erosion is
<br />moderate. The soil is subject to occasional, brief
<br />flooding. The seasonal high water table is at a depth
<br />of 1.5 to 3 feet. There is a moderate to high
<br />concentration of salts, and salts tend to accumulate
<br />on the surface in areas where the capillary moisture
<br />from the ground water reaches the soil surface,
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<br />The soil has a high potential for pasture. The native
<br />grasses are mainly alkali sacalon and inland
<br />saltgrass. Willow and tamlarisk grow in places.
<br />Capability units IIIw-l, irrigated, and Viw-I,
<br />non irrigated; Salt Meadow range site.
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<br />Limon Series
<br />The Limon series consists of deep, well-drained
<br />soils. These soils formed on alluvial fans and
<br />terraces in clayey alluvium. The slope is 0 to 5
<br />percent, and elevation is 4,300 to 5, I 00 feet. The
<br />average annual precipitation is 12 inches. The
<br />average annual temperature is 53' F, and the frost-
<br />free season is 145 to 175 days. The native vegetation
<br />is mainly plains grasses.
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<br />In a representative profile the surface layer is gray-
<br />ish-brown silty clay loam about 4 inches thick. The
<br />sub-surface layer is light brownish-gray silty clay
<br />about 14 inches thick. The underlying material is
<br />light brownish-gray silty clay about 17 inches thick
<br />over light brownish-gray silty clay loam that extends
<br />to a depth of 60 inches or more.
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<br />Permeability is slow, and the available water cap-
<br />acity is high. The surface and subsurface layers are
<br />moderately alkaline and the underlying material is
<br />moderately alkaline or strongly alkaline. The root
<br />zone extends to a depth of more than 60 inches.
<br />These soils are used for grazing and irrigated crops.
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<br />Representative profile of Limon silty clay loam, 0 to
<br />2 percent slopes, in grass, 2.5 miles west and 0.2
<br />mile north of the southeast comer of sec. 36, T. 25
<br />S., R 60 W.
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<br />A-'() to 4 inches, grayish-brown (2.5YR S/2) silty clay
<br />loam, dark grayish brown (I OYR 412) when
<br />moist; weak, fine and very fine, granular
<br />structure: slightly hard firm; sticky and plastic;
<br />calcareous; moderately alkaline; abrupt, smooth
<br />boundary.
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<br />AC-4 to 18 inches, light brownish-gray (2.5Y 6/2)
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