Nambiar K K M <br/><br/>
Soil Fertility And Crop Productivity Under Long Term Fertilizer Use In India  Soil Fertility 

 - M Sc (Agri) 
 - New Delhi  Indian Council of Agricultural Research  1994 
 - 144  28Cms  
<br/><br/><label>Dewey Class. No.: </label>631.42  / NAM