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Show :1 1 : I Effect of IrrigationIrrIg'1tion IrrigationIrrigation Irrigation IrrigationIrrigitlon UnitedStates Irrigitlon IrrIg'1tion IrrIg1tion Irrigation ' specialists Slcclahst ) & of the United UnitedI Statcs States Department DepJ.rtment DepJrtment . of Agriculture hav has ha . e elound efound elound lound found that In to well \ \ ell cllmamged maD1ged managed irrigation irrigationprojects irrigationprojects Irrigationprojects projects the drainage water carriesaway carrIes carrIesa.ay carriesaway a.ay aay away bythe , . as much salt as Is 1'3 13 ' brought in by the irrl irrio Imsition tHon ition water . The crop plants plantsuse plantsuse plantsuse use a large part of the irrigation Wa- Wa wa water . - Water ter , but they absorb little very of the thesalt thesalt thesalt salt . , so tint th\t th t th'it thit ' \ ' the salt content of the I ' thanI di thednimge thedi thanthat l'ln'1ge lln1ge zlnige ' [ ' water Is much higher than I theI Wheredrainage WheredrJ.lnnge that of the Irrigation water . . Where drJ.lnnge drJlnnge drainage . water \ with all Its higher salt con irrigaI lrrigaI tent content i Is & reclaimed and used for lrriga irriga I tion tlon it Is necessary neco'5sary neco5sary ' to use larger { ) quantities largerquantities for each acre served , in 01 or der 01der order to malnt'lln malntlln malnt'iin malntiin ' ' ' a favorable salt bal balance . ance lInce ante and thus avoid crop tnjur Injury tnjurr r . - |