Krishna, K. R. <br/><br/>
Maize agroecosystem :  nutrient dynamics and productivity / 
K. R. Krishna 
 - Toronto :  Apple Academic Press,  c2013 
 - xii, 341 p. :  ill., maps ;  24 cm. 
<br/><br/>Includes bibliographical refernce and index 
<br/><br/><label>ISBN: </label>9781926895086  £95.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Corn<br/>Crop science<br/>Phytotechnie
<br/><br/><label>Dewey Class. No.: </label>633.15