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<br /> <br />.;'..f>,~, '" f .. <br />,7\"I."~' fd. <br />""~~;'1i!.. '. <br />~<,,~. .,ca~)t.. ":~:."'~. <br />"t~ ~f;,jk <br />....;. ~'.',~ " ., <br /> <br />)~,~~ <br />~,':,,~' <br />..r <br /> <br />W <br />N <br />l\.) <br />o <br /> <br />,..~.IIIJ,,< 10' <br /> <br />..: .# <br />_.....iI' I <br /> <br />_..r <br />...... '.....,,. <br />t....,i'" ...:~~ '" ----=.. <br />';,,'!r 'I, .~,j' <br />... ..,.... ". <br />f.'i.;-- <br />.~ <br />"""., -- <br />'ff <br /> <br />.. <br /> <br />4 <br /> <br />,. <br /> <br />(~ <br /> <br />,J! <br /> <br />~" <br /> <br />'; <br /> <br />-, <br /> <br />-- <br /> <br />-- <br /> <br />FIGURE 7. Irrigation waste water erosion on a culti- <br />vated field. Morrill county, Nebraska. <br />Photo courtesy Soil Conservation service, u.s. Dept. of <br />Agr icul ture. <br /> <br />19 <br /> <br />.IlJ, <br /> <br />