HEGDE, D M. “Integrated Nutrient Management Effect on Rice (Oryza Sativa) - Wheat (Triticum Aestivum) System Productivity in Subhumid Ecosystem”. The Indian Journal of Agricultural Sciences, vol. 68, no. 3, Feb. 2013, https://epubs.icar.org.in/index.php/IJAgS/article/view/27341.