Sowmya D. <br/><br/>
Effect of nutrient sources on soil fertility and cowpea (vigna unguiculata I .) productivity in vertisol of northern transition  

 - M.Sc. (Agri) 
 - Dharwad  University of Agricultural Sciences  2014 
<br/><br/><br/>ENGLISH 
<br/><br/><label>Dewey Class. No.: </label>630  / SOW