2008-10-21_PERMIT FILE - M2008072

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lti AHL SURVEY IICb-52 to 60 inches, pale-bra\\"u (IOYR 6,3) gravelly loamy sand, grayish gown t MYfi 10) when moist; massive to single grain (structureless) ; slightly hard when dry. very friable w1wit moist; noncaleareous: pII 7.a.. The A horizon ranges front 4 to S inches in thiclntess. The I:_'t horizon rang-e8 froth heavy silty clay loans to clay. When the soil is Ituist. very dart: grayish-brown or darker colors extend to it depth of -10 to SO inches. In most areas free lime has been leached to a depth of Go inches, but a areas Ire calcareous at a depth of -it) itlches. Pleasant soils have it more uuiforut dolor in the subsoil than have Rago soils. Also, Pleasutt soils lack the distinct layer of accumulated lime that occurs in Rago soils. Pleasant loam 10 to 3 percent slopes) It occupies the acreage in the south-central start of the county at the nest and port-11west edges of the sandhills. Included with this soil in napping were areas of Rago and K11111a loans.:Vso included were. playas and ar few areas haying a surface layer of light clay loans. Pleasant loans is deep and tales water slowly, but it dot's not release water readily to plants, lillllotl' l slow. 'I'bis soil is sudilble for v"h hot ion, and about half the acreage is cuildvovd. In dl'yfat'l wd amas, engw am! gPass for pasture or range are sui vol, Also suited are irrigated crofts, pasture, or hay. 'This soil periodically is flooded after heavy rains. If the soil is tilled when .vet, plowpauls tend to fors l ill the upper part of the subsoil. Periodic Weling when the soil is dry breaks ill, the plowpa n. Stubble. mulching or use, of crop residue generally helps to reduce erosion in dryfarmed greats. _LIthouglt the soil is near ly level, irrigated fields re- quire leveling, so that wa(or spreads uniformly. Practices for controlling soil blowing and for inaintaiuing fertility are careful management of irrigation water anal working crop ra,idue into the soil. Blue grans, butl'adogass, and western ??he;ti??ratss grow vigorously on this soil. In cultivated or overgrazed areas, reseeding is desira P if the soil is moist anti covered with litter.:kll grazing should he deferred until the gra-4s forms a good root system. Overgrazing can be avoided if salt, watering points, and fences are locnted so that auliloals gaze the entire rall"re. Capability units HIS -1 (drylarl(l) and Ile 2 (irrigated) ; C'Iavey Plains range site; wind- break suitability grou 1) 1. Rago Series The Rago series consists of deep, Nvell-drained, loanly soils. These soils occur on uplands and are nearly level or gently sloping. They occupy ])road, flat areas and are extensive t.lu•oughout the county. In a typical profile the plow layer is rrarvish brown lomo about, 5 inches thick (fig. u). It is easily worked. The subsoil is about. 21 inches thick. The upper put is dark grayish-brown, shghtly hard Owl and hard clay loaul. 'The middle part is dark-gay, hard silty clay loam, and the lower part is pale-brown, slightly hard silty- clay loam that is strongly calcareous and contains Mir lime. 'The underlying material is very pale brown loam and silt loan that is very strongly calcareous atul contains visible llnle. Surface runoff' is medium, because these soils are not more than gently sloping and have a moderately perme- able surface laver. They have a high capacity- to ho water and are high in natural fertility. inc, for a few small areas, the INgo soils are dr farmed. Winter wheat, barley-, and sorghums are the Ina, crops, Some oats arc grown in n few areas. The nati vegetation consists mainly of western wheatgrass and bl gratna grasses. 't'ypical profile of Rago loam in a field of wheat stubh (295 feet west and 84 feet north of southeast corner section 3t T. 8 \., R. 43 IT) : Figure 6. Profile of Rago loam.