K. SWAROOP, “EFFECT OF PHOSPHORUS, POTASH AND RHIZOBIUM ON POD YIELD, NUTRIENT UPTAKE AND RESIDUAL AVAILABLE SOIL NPK OF VEGETABLE COWPEA”, AAR, vol. 27, no. 3, Mar. 2014, Accessed: Jun. 27, 2026. [Online]. Available: https://epubs.icar.org.in/index.php/AAR/article/view/42351