Optimizing yields-the role of fertilizers 

 - Worblaufen-Bern  International Potash Institute  1982 
 - 305p.  23cm 
 - Proceedings of the 12th IPI-Congress, June 1982 at goslar / federal republic of Germany .
<br/><br/><label>Subjects--Topical Terms: </label><br/>YIELDS<br/>CULTIVATION AND HARVESTING,AGRICULTURE,FERTILIZERS
<br/><br/><label>Dewey Class. No.: </label>631.558  / OPT