SWAROOP, KISHAN. 2014. “EFFECT OF PHOSPHORUS, POTASH AND RHIZOBIUM ON POD YIELD, NUTRIENT UPTAKE AND RESIDUAL AVAILABLE SOIL NPK OF VEGETABLE COWPEA”. Annals of Agricultural Research 27 (3). https://epubs.icar.org.in/index.php/AAR/article/view/42351.