Dow, A. I. <br/><br/>
Intensive soil sampling :  a principle of soil fertility management in intensive irrigation agriculture / 
by A. I. Dow and D. W. James 
 - Washington, D.C. :  Agricultural Experiment Station,  1973 
 - 6 p. ;  28 cm. 
 - Bulletin ;  781 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil fertility<br/>Fertilizers<br/>Sustainable agriculture
<br/><br/><label>Dewey Class. No.: </label>631.41