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O <br />.._. <br />• 87-Ra[;o loam. • <br />This is a deep, moderately xell siralned soil, mostly in the northern <br /> <br />part of the county, It develops-d in loess on level to gently sloping <br />or slightly concave plains, The average annual precipitation is about <br />17 inches. mopes are normally less than 2 percent. ?.lapped arees are <br />irregular shaped and up to 1000 acres in size. Included in mapped areas, <br />' is Ha>aun soils, about 25 percent, and Plainer soils about 5 percent, <br />The surface ]aver is grayish bor.m loaJn about 8 inches thick. The <br />upper subsoil is grayish brexn heavy clay loam about 12 inches thick, <br />The loxer subsoil is ~°ery dart, grayish brown heavy silty clay loam about = <br />9 inches thick.. The substratum is light-gray silt.lczm about 8. inches . ---- <br />thick. The underlying material is very pole broim sandy lozm to a <br />depth of 60 inches or more. <br />Penoeability is slcx. The available water capacity is high. Effective- <br />rooting depth is 60 inches or more. Runoff is slot: and the erosion--- - <br />hasard is low.- The fertility is relatively high, <br />At least 95 percent of the acreage is cultivated. 1~;ostly shall grain <br />is groom in z crop-fallox system of non-irrigated farming. .:inter wheat <br />is the ir_oortaiit crop and is well adapi.ed for this soil. '.]here irrigated <br />~:ater is zpplied eit}ier through a sprinkler, or through gzted pipe <br />released into furrcxs. Corn and sugar huts are tl~e chief irrigzted crops, <br />Controlling xind erosion and maintaining soil filth are the mzin man- <br />agement problems, l•he ctl~er 5 percent is -used for grazing. <br />s. _ - :r; <br />.. ~~. <br />Wit, <_~,: <br />. r'.'. _.. ._.. . <br />- - --~ - ~:i; ~- <br />_ ._ t. >i;_. Aim.. <br /> <br />