SINGH, O P, P N TRIPATHI, and ROOM SINGH. “Effect of Phosphorus and Sulphur Nutrition on Summer Greengram (Phaseolus Radiatus)”. The Indian Journal of Agricultural Sciences 69, no. 11 (February 1, 2013). Accessed October 28, 2025. https://epubs.icar.org.in/index.php/IJAgS/article/view/27124.