K.K.M. Nambiar <br/><br/>
Soil Fertility And Crop productivity Under Long-Term Fertilizer use In india 

 - New Delhi  Indian Council  1994 
 - iii,144 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Crop Productivity
<br/><br/><label>Dewey Class. No.: </label>368.12/N15S