K.K Math <br/><br/>
Effect of nitrogen substitution through organics aon soil health and cropnyeidlds inwheat -soybean cropping system 

 - Ph.D (Soil) 
 - Dharwad  University of Agricultural Scienes Dharwad  2001 
 - 242p 
<br/><br/><br/>ENGLISH 
<br/><br/><label>Dewey Class. No.: </label>630  / MAT