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<br />Baca loam, 1 to 5 percent slopes (BcB).--This
<br />soil has the profile described as typical for the
<br />series. It occurs in the northeastern and south-
<br />eastern parts of the county. Areas aTe up to SOD
<br />acres in size. In most areas slopes are less than
<br />3 percent.
<br />The principal inclusions are Kim and Wiley loarns,
<br />1 to 9 percent slopes. They make up about 10 per-
<br />cent of each mapped area.
<br />This soil has few limitations if used as range.
<br />The range can be kept in good condition by reducing
<br />runoff, so that water enters the soil and is avail-
<br />able to plant roots. (Nonirrigated capability unit
<br />VIe-I; Loamy Plains range site)
<br />
<br />Rankard Series
<br />
<br />Soils of the Bankard series are sandy, excessive-
<br />ly drained, droughty, and easily eroded. They occur
<br />on low terraces of the Arkansas River and other
<br />streams. Occasionally they are covered with flood-
<br />water. They are not extensive.
<br />In a typical profile the upper 14 inches is pale-
<br />brown loose sand but ranges to silty clay loam. Be-
<br />low a depth of about 14 inches is stratified sand
<br />and gravel.
<br />Bankard soils are low in fertility and have a
<br />very low water-holding capacity. Water infiltrates
<br />rapidly. The erosion hazard is severe.
<br />The entire acreage is in grass. Good management
<br />is needed. The native vegetation is sand dropseed,
<br />saltgrass, forbs, weeds, saltcedar, and cottonwoods.
<br />TyPical profile of Bankard sand on a low terrace
<br />of the Purgatoire River, 0.23 mile east of the cen-
<br />ter of sec. 26, T. 26 S., R. 54 W.
<br />
<br />A1--0 to 4 inches, pale-brown (lOYR 6/3) sand, dark
<br />grayish brown (lOYR 4/2) when moist; weak,
<br />fine, crumb structure; soft when dry, very
<br />friable when moist; strongly calcareous;
<br />abrupt, wavy boundary.
<br />Cl--4 to 14 inches, pale-brown (IOYR 6/3) sand,
<br />brown, (lOYR 5/3) when moist; single grain;
<br />loose when dry or moist; strongly calcareous;
<br />gradual, wavy boundary.
<br />C2--14 to 60 inches, stratified sand and gravel;
<br />estimated less than 50 percent gravel.
<br />
<br />The A horizon ranges from sand to silty clay loam
<br />in texture and from 2 to 6 inches in thickness. The
<br />C horizon ranges from sand to gravelly sand in tex-
<br />ture.
<br />Bankard soils are associated with Glenberg and
<br />Las Animas soils. They are most like the Glenberg
<br />soils but are sandier.
<br />
<br />Bankard sand (0 to 3 percent slopes) (Bk).--This
<br />soil has the profile described as typical for the
<br />series. It occurs as areas up to SO acres in size.
<br />Inclusions of Glenberg loamy fine sand, 0 to 1
<br />percent slopes, make up as much as 15 percent of
<br />each mapped area.
<br />
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<br />
<br />This soil has a low water-holding capacity and
<br />low fertility. Wind erosion is a severe hazard.
<br />Stream overflows deposit sand and silt or cut chan-
<br />nels. After flooding, weeds become the most abun-
<br />dant plants in many places. The vegetation on this
<br />soil vaTies 50 much from place to place that it can-
<br />not be classified as a range site. (Irrigated ca-
<br />pability unit IVs-S; non irrigated capability unit
<br />Vle-6)
<br />
<br />Bloom Series
<br />
<br />The Bloom series consists of nearly level, poorly
<br />drained silty clay loams that are on broad drainage-
<br />ways or low stream terraces. These soils are not
<br />extensive in the county.
<br />In a tyPical profile the surface layer, about 4
<br />inches thick, is gray loam. The transitional layer,
<br />about 5 inches thick, is light brownish-gray mottled
<br />loam that is friable when moist. This layer also
<br />contains Seams of fine crystalline soluble salts.
<br />The substratum to a depth of about 4 feet is pale-
<br />brown silty clay loam with gray and yellowish-brown
<br />mottles. Below a depth of about 47 inches is yel-
<br />lowish-brown silt loam with gray mottles.
<br />Bloom soils are wet because of the waste and seep
<br />water from irrigation canals. They are difficult to
<br />drain because of their low position. There is little
<br />eTOsion hazard.
<br />All of the acreage is used as range. The princi-
<br />pal grasses are alkali sacaton and saltgrass.
<br />TyPical profile of Bloom loam in a salt-meadow
<br />range, 0.15 mile south and 50 feet west of the
<br />northeast corner of sec. IS, T. 23 S., R. 57 W.
<br />
<br />01--1 inch to 0, gray (lOYR 6/1) loam, very dark
<br />gray eN 3/0) when moist; decomposed organic
<br />matter and silt; calcareous; clear, smooth
<br />boundary.
<br />Al--O to 4 inches, gray (IOYR 6/1) loam, dark gray
<br />(lOYR 4/1) when moist; weak, medium to fine,
<br />crumb structure; hard when dry, very friable
<br />when moist; common, fine, gray (lOYR 5/1)
<br />mottles; strongly calcareous; clear, smooth
<br />boundary .
<br />AC--4 to 9 inches, light brownish-gray (IOYR 6/2)
<br />loam, dark grayish brown (IOYR 4/2) when
<br />moist; moderate, thick, platy structure that
<br />parts to weak, fine, subangular blocky; hard
<br />when dry, very friable when moist; common,
<br />large, faint, pale-brown (lOYR 6/3) mottles
<br />when dry and common, medium, faint, gray
<br />(lOYR 5/1) mottles when moist; small nests of
<br />fine gypsum crystals common; strongly cal-
<br />careous; clear, smooth boundary.
<br />Clg--9 to 18 inches, pale-brown (lOYR 6/3) silty
<br />clay loam, brown (IOYR 5/3) when moist; weak,
<br />medium, subangu1ar blocky structure; very hard
<br />when dry, very friable when moist; common,
<br />medium~ distinct, gray (lOYR 5/1, moist) and
<br />yellowish-brown (lOYR 5/6) mottles; many small
<br />nests of fine gypsum crystals and salt
<br />
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