Advances in agronomy 
Edited by. N. C Brady 
 - San Diego:  Academic Press,  1989. 
 - vol 42 
<br/><br/> Includes index and bibliography 
<br/><br/><br/>eng 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plants breeding
<br/><br/><label>Dewey Class. No.: </label>630  / ADV