R. S. BANA, Y. S. SHIVAY, and V. K. TYAGI, “Effect of Summer forage crops and phosphogypsum-enriched urea on soil quality, nitrogen-use efficiency and quality of Basmati rice (Oryza sativa) and their residual effect on succeeding wheat (Triticum aestivum)”, Indian J Agri Sci, vol. 85, no. 4, pp. 531–538, Apr. 2015, doi: 10.56093/ijas.v85i4.47934.