K.N. Tiwari <br/><br/>
Review and refinement of fetilizers recommandation for principal crops in uttar pradesh 

 - Gurgaon  Potash and Posphate Institute of Canada, India prog  2000 
 - 87p 
<br/><br/><br/>ENGLISH 
<br/><br/><label>Dewey Class. No.: </label>631.8  / TIW