x  x <br/><br/>
Biological nitrogen fixation associated with rice production  x 

 - x 
 - New Delhi  Oxford & IBH  1991 
 - xii,448p 
<br/><br/>Index 
<br/><br/><label>ISBN: </label>8120405609 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Rice Fertilizers and manures 
<br/><br/><label>Dewey Class. No.: </label>631.84/B615