Study on the use of ftilizers and manures in agricultural production. 

 - Delhi :  MP ,  1967 
 - ii, 188p. :  ill. ;  22 cm. 
 - PEO. Pubs.  No. 56 .
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fertilizer<br/>Agriculture
<br/><br/><label>Gov. Doc. Class. No.: </label>IND PC 30