Nutrient management practices in crops and cropping systems 
edited by C P Ghonsikar and V S Shinde 
 - Jodh  Scientific Publishers  1997 
 - x,285p. ;  22cm. 
<br/><br/><label>ISBN: </label>81  7233  168  1 
<br/><br/><label>Dewey Class. No.: </label>631.81  / GHO