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<br />{~t1J.,., <br />~li <br />"".-" <br /> <br />Ar~ble Lsnd Classification Standards <br /> <br />~alities <br />Texture* <br /> <br />Arable - Class 2 <br />Loamy Sand to friable clay <br /> <br />) <br /> <br />Arable - Class 1 <br />:Sandy Loam to friable clay <br />: loam <br />:24 inches good plow soil, 18 inches good plow s')11, <br />: 48 inches penetrable to 36 inches penetrable to <br />: roots and water roots and water <br />:None black. Maximum of .2/. :pH 9.0 or less. Maximum of <br />total salts fer 5-foot pI'Q-: .41. total snlt s for 5-foot <br />: file, with .3~ in any hor-: prOfile, with .51- in any <br />: izon, or layer: pH 8.6 : horizon or layer. <br />:No loose rock or cobble to No more than has been re- <br />: bother cultivation moved from similar land. <br />Topography:Maximum grade 5~ for large Smooth 5-10~ slopes or 5~ <br />smooth bodies, needing no if rougn., grading and <br />: grading and little level- leveling equal to similar <br />: ing. land developed. <br />Drainage :Seepage unlikely but cheap MP,y seep but artifical <br />drainage possible drainage economically pos- <br />sible <br /> <br />Depth <br /> <br />Alkali <br /> <br />Rock <br /> <br />*~~ere soil depth over gravel, coarse sand, or broken rock approaches <br />the minimum for its class, textures must be at least as heavy as <br />fine sandy loam. <br /> <br />&i~<", <br />r.~",.~ <br />~~' <br /> <br />Some deviation from standards as listed, was made at higher eleva- <br />tions practically devoid of alkali on the type of rolling land <br />where seepage wculd not be expected to develop in spite of less <br />depth of well-weathered s oil or of less total penetrable depth <br />than the minimum for Class 2. <br /> <br />The .arable mesa land is covered with a thrifty growth of <br /> <br />sage while the high knolls and side slopes of the gulches support <br /> <br />a thin growth of juniper (cedar), pinon, and some brush. On the <br /> <br />higher ~esidual soil areas there is considerable long leaf pine and <br /> <br />brush. <br /> <br />The largest body of arable non-irrigated land lies in a <br /> <br />strip one mile wide on the east edge of Florida Mesa, extending <br /> <br />three and one-half miles south from the highway between Fa1fa and <br /> <br />Florida, In and adjoining this strip there are 2,200 acres of Cl~ss <br /> <br />.:lland. Six Indi9.n allotments r8!l19.in in the strip. Most of the <br /> <br />11 <br />