Fertlizer use and portein production :  Proceedings of the 11th Colloquim on International potash Institute held in Ronne-Bornholm/Denmark, 1975 

 - Ronne-Bornholm, Denmark :  International Potash Institute,  1975 
 - 307 p. ;  23 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label> Rs. 28.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural ecology<br/>Field crops
<br/><br/><label>Dewey Class. No.: </label>631.5