Singh, S. S <br/><br/>
Soil fertility and nutrient management 

 - 3e. 
 - Ludhiana:  Kalyani,  2011 
 - 259p. ; illus.,  includes references 
<br/><br/><label>ISBN: </label>9788127269982 - pbk 
<br/><br/><label>Subjects--Topical Terms: </label><br/>1. Soil fertility -- India. <br/>2. Plant nutrients -- India. <br/>3. Plant nutrients.