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<br />I <br />~,. <br /> <br />. <br />'i. <br />, ~' <br />;~ <br />r <br />J <br /> <br />l <br />\ <br />~ <br />~. <br />it <br />l <br />, <br />I <br /> <br />~ <br /> <br />, <br /> <br />(:() <br />~-l <br />..~ <br />.-4 <br /> <br />ON-FARM PROGRAM <br />for <br />SALINITY CONTROL <br /> <br />If::< > <br />,;'/.',,~ <br />/--., ,.:.~~;,.=-""" <br />//,,'./_: '_>'''/.'' If...., <br />/~. -' I '~;.:>..~:_:~':'_~:'{>~.~ <br />(~, l'(') "-')-ii>~~~:~~..;-,^< <br />....... /}~) '.."=-_-7-/~,--~ <br />.. ;., " /: ./ <br />,..:',;",.) <br />, Li <br /> <br />J:-~ <br /> <br />.-, <br /> <br />(;.0"-' . <br />"",'1(\ >.... ' <br />I!'.);::- -v <br />'-~~)t/ - " <br />1t / <br />10",/ :~.. <br />. 6(... <br />~'^ .'" <br />.TD <br /> <br />, :1 <br />,/ <br /> <br />, <br />! <br /> <br />FINAL REPORT OF THE <br />GRAND VALLEY SALINITY STUDY <br /> <br /> <br />Prepared by <br />SOIL CONSERVATION SERVICE <br />Assisted by <br />AGRICULTURAL RESEARCH SERVICE <br />of the <br />U. S. DEPARTMENT OF AGRICULTURE <br /> <br />December 1977 <br />