Gupta, P.K. <br/><br/>
A handbook of soil, fertilizer and manure  [Book] 
P.K. Gupta. 
 -  Agrobios India 
<br/><br/> All. 
<br/><br/><label>ISBN: </label>8177541528 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Silicon In Agriculture
<br/><br/><label>Dewey Class. No.: </label>631.8