Advances in agronomy. ; 
edited by Donald L. Sparks. 
 - v. :  ill. (chiefly col.) ;  24 cm. 
 - Advances in agronomy ;  v. 119 .
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9780124072473  RM770.95 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture.<br/>Agriculture--Research.