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<br />OC::I0l <br /> <br />It _,. be said that in general the lands tor whioh .. supple- <br />mental ...tel' supply 18 contemplated, both in the Con.jOB and Rio Grauele <br />Dlv1siona, &re suitable enly tor the produotion or speoialized orop. <br />UDder.. ...11 devia.d, pn.otioal. auaoe..tal _t:hod ot orop rotation. <br /> <br />The moat auooea.rut rotations haTe been <br />trial and error, to require rather long periods. <br />pa'ttn'na aomrnhat ..a rattan I <br /> <br />found, atter years of <br />They cenera11r follow <br /> <br />Pot..toe.........;.............2 yeare <br />Small Gral~..................l yelUM <br />Sw.et CI0T81' Pasture..........! year <br />English P..a or Truok Crop....l year <br />Altalt........................2 to 4 years <br /> <br />Another aueeeutal ro-ta1:1on 18. <br /> <br />.lU'aU'a or Clemor with Grain <br />diOTe1' Crop................1 year <br />Alfalfa ~/or Clover........~ year. <br />Potatoes (or Sugar ne.t.)......2 years <br />Grain or Field Pea............1 year <br /> <br />These rota:t1ona require of the farmer. in order to prarlde hi_elt with <br />an inoamo ,uttioient tor IlL desirable standard ot llTing, an aoreage larE8r <br />than 18 ordinarily 001US1dered adequate in other lrrip.ted .eationa ot <br />the Uni tad Stat... <br /> <br />Crop rotation, ,mioh 18 Tirtually neoo..ary to 1mprove and _1n- <br />tain the tortility at the land, require. tor luocesstul randn" individual <br />tracts pnerally in exoe8& at 160 aoree. From 1:he typioal rotation system <br />ot ,mioh example. were oited above, 11: 18 to be no1:.,d than an individual <br />fal"Dl8r, it he produoes 40 aorea ot potatoes eaoh yelU', would require a <br />traot in excess ot 160 acre., prOTldlnr; he expeoted to -.intain the in_ <br />herent reaotU"Ol38 of the .011 and build up the tertility ot hi. land. <br /> <br />The production of cash orop. whioh oan be CrOWD aucae..tull7 in <br />thle Valley, and at thia high altitude. require. an extenaiTe hl'ntstMlJ't <br />of e&pital in maohinery aDd equl".nt. The growing se..on h ahort. whioh <br />limit. . 'r&rlo'ty ot possibilitiea in caah crop" The opening and olosing <br />at the growill! season is so abrupt that it doe. not pendt laokadaisioal <br />aotion on the part of the farmer if he expeots to either plaut or harvest. <br />The tranaltlon froa the winter to spring is an incredibly short perlod., and <br />the transition from spring to IUZDIr 11 just U IIhart. It 18 frequently <br />IItated. a.nd not entirely faoetiousl,.. that "there is no ''PriD<< in the <br />San Lui, Valley." The lams could alao be well sald of the transition fram <br />IItm1118r to winter. Under such aonditioDft it is ot paramount l1ea8uity that <br />the gro'lmd be prepared and seeded in the rrl.n\fl!Mll pouible period. <br /> <br />-4- <br />