Reducing drought effects on croplands in the west-central great plans 

 - Washington, D.C. :  U.S. Dept. of Agriculture, Science and Education Administration,  1979 
 - 31 p. :  ill. ;  26 cm. 
 - Agriculture information bulletin;  no. 420 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Droughts--Great Plains<br/>Field crops--Water requirements--Great Plains<br/>Droughts
<br/><br/><label>Dewey Class. No.: </label>631.70978