Advances in agronomy 
edited by N. Brady. 
 - New York :  Academic press ,  1978 
 - v :  illus. ;  24 cm 
<br/><br/>Includes Bibiliographical references and index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agronomy.
<br/><br/><label>Dewey Class. No.: </label>630