Singh, S.S. <br/><br/>
Soil Fertility & Nutrient Management 

 - R.P. 
 - New Delhi  Kalyani Publication New Delhi  2000 
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>Soil Fertility
<br/><br/><label>Dewey Class. No.: </label>631.4