Chela, Kartar Singh <br/><br/>
Green-manuring 

 - Ludhiana:   Punjab Agricultural University,   1979 
 - 27p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture
<br/><br/><label>Subjects--Index Terms: </label>Scope of green-manuring Crop rotations 
<br/><br/><label>Universal Decimal Class. No.: </label>63  / L9