Choudhary, Ashok Kumar. <br/><br/>
Soil fertility / 
Ashok Kumar Choudhary. 
 - New Delhi, India :  Anmol Publications Pvt. Ltd,  2014. 
 - viii, 296 pages :  illustration ;  24 cm. 
 - Encyclopaedia of agriculture science and engineering series .
<br/><br/> Includes bibliography and index. 
<br/><br/><label>ISBN: </label>9788126159857 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soils.