KATYAL V, GANGWAR KS, GANGWAR B. Yield stability in rice (Oryza sativa)-wheat (Triticum aestivum) system under long-term fertilizer use. Indian J Agri Sci. 2013;70(5). Accessed July 4, 2026. https://epubs.icar.org.in/index.php/IJAgS/article/view/28245