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<br />-. <br /> <br />\ <br /> <br />. <br />---.- <br /> <br />1962 <br /> <br />(Invontory of physical factors) <br /> <br />TOIl cjl;raphy <br /> <br />Tho Class 1 irri~ablc land has a gontle uniform slopo suitablo for <br />irrigation. Scmo of the Class 2 irrigablo land slopos as much as 10 <br />porcont. Many ravines, gullios, and slIlllll grnvol hills aro found which <br />dividc much of the irrigablo aroa into =11 trncts. <br /> <br />Drainago <br /> <br />All the irrigablo lnnd ros good surfc.ce c.nd subsurfaco drainngo. <br /> <br />Snlini~y and alkalinity <br /> <br />c <br /> <br />- ~--- <br />-~- --- <br />" Laboratory tests of soil samplos indicate thut salinc or,u~krc~ino~ <br />ccnditions aro not probloms in tho aroa. Loss tlnn .1 porcont t01;6.l.-- <br />solublo sul ts nnd n pH of loss thnn 8.0 woro founl. in 28 soil profilos. <br /> <br />Land olnssification <br /> <br />During 1945 the roconn..'1iss~.ncc survey which WaS pc,rtially complotod <br />in 1941 wns finished. <br /> <br />Tnble 4 SummArizes tho results of thc land classification for tho <br /> <br />nroo.. <br /> <br />Tablo 4.--Lc.nd classificntion: <br />Loadville-Sulida arca <br />(c.cres) <br /> <br />Cluss eeoruuJ.sSlll1CO I Total <br /> lrri nted I NonJ.rri ated I <br />1 t 2,024 I 227 I 2,251 <br />2. 9,301 I 1,584 I 10,685 <br />3 I 9,814 . 4.962 I 14,776 <br />. <br />6 0 I 209,301 I 209,301 <br />Total 1 21.139 I 215 ,8 74 I 237.013 <br /> <br />_I <br /> <br />Tm <br />