Sarkar, Sukamal. “MANAGEMENT PRACTICES FOR ENHANCING FERTILIZER USE EFFICIENCY UNDER RICE-WHEAT CROPPING SYSTEM IN THE INDO-GANGETIC PLAINS”. Innovare Journal of Agricultural Sciences 3, no. 2 (April 1, 2015): 5-10. Accessed October 23, 2020. https://innovareacademics.in/journals/index.php/ijags/article/view/5734.