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<br />TABLE IIl-2 <br />LANII CLASSIFICATION SPECIFICATIONS <br />FRYINGPAN-ARKANSAS PROJECT <br /> <br />.Po <br />f'.;.! <br />~.. <br />t.D <br /> <br />Land Characteristics <br /> <br />Class 6 <br /> <br />Class I <br /> <br />Class 2 <br /> <br />Class 6W(6) <br /> <br />Texture <br />Depth: <br />To sand, gravel. or cobble <br /> <br />To relatively impervious <br />subsoil material <br />To penetrate lime zone <br />Alkalinity <br /> <br />H <br />H <br />H <br />, <br />W <br />H <br /> <br />Salinity <br /> <br />Rock and rocky soil <br /> <br />Slopes <br /> <br />Surface <br /> <br />Drainage <br /> <br />. <br /> <br />Sandy loam to friable clay Ie-am <br /> <br />30 in. plus - good free working <br />sol1 <br /> <br />48 in. plus <br />18 in. with 48 in. penetrable <br />pH less than 9.0 unless soil <br />is calcareous, total salts <br />are low and evidence of black <br />alkali is absent. <br />Total salts not exceed 0.2%. <br />May be slightly higher in <br />open permeable soils and under <br />eood draina2e conditions. <br />No rock or loose rock that <br />will. interfere with ordinary <br />cuI tivation. <br />Smooth slopes up to 5% in <br />general gradient reasonably <br />large sized bodics sloping in <br />the same plane. <br /> <br />Even enough to require only <br />small amount of leveling and <br />no heavy grading. <br /> <br />Soil and topographic conditions <br />such that no specific draina~e <br />requirement is anticipated. <br /> <br />Loamv sand to slowlv permeable clay <br /> <br />20 in. plus - good free working <br />soil <br /> <br />36 in. plus <br />14 in. 'With 36 1n. oenetrable <br />pH 9.0 or le9s, unless 90il 1s <br />calcareous, total salts are low <br />and evidence of black alkali is <br />absent. <br />Total salts not exceed 0.5X. May <br />be slightly higher in open perme- <br />able Boils and under good drain- <br />a2e conditions. <br />No rock in place. Only scattering <br />loose rock large enough to inter- <br />fere with cultivation. <br />Smooth general slopes up to 10%; <br />reasonably large sized bodies <br />sloping in the same plane; or <br />rougher slopes Which may be less <br />than 5% in <<eneral ~radient. <br />Moderate grading may be required <br />but in amounts generally found <br />feasible in like areas where <br />irri~ation is practiced. <br />Soil and topographic conditions <br />such that some drainage will <br />probably be required but with <br />reclamation by artifical means <br />appearing feasible at reasonable <br />cost. <br /> <br />. <br /> <br />Includes presently <br />irrigated lands <br />which do not meet <br />the minimum re- <br />quirements of <br />Class 2. <br /> <br />Includes dry lands <br />which do not meet <br />the minimum requi~ <br />ments of Class 2 <br />and small areas of <br />arable land lying <br />within larger bodies <br />of nonarable land. <br /> <br />. <br />