OCR Text |
Show Effect of Irrigation Irrigation specialists of tht United States Departuiunt of Agriculture hare "ini'l that In well-managed Irrigation projects the drainage water carrlea away us much salt as la brought In by the irrigation water. The crop plants use a large part of the Irrigation water, wa-ter, but they absorb rery little of the -alt. so that the salt content of the drainage water la much higher than that of the Irrigation water. Where drainage water with Its higher salt content con-tent Is reclaimed and used for Irrigation Irriga-tion It Is decenary to ui larger quantities for each acre aerred. In order or-der to maintain a favorable salt balance bal-ance and thus avoid crop Injury. |