VlKAS GUPTA, R.S. SHARMA, and VISHWAKARMA. “Long-Term Effect of Integrated Nutrient Management on Yield Sustainability and Soil Fertility of Rice (Oryza Sativa)-Wheat (Triticum Aestivum) Cropping System”. Indian Journal of Agronomy 51, no. 3 (October 10, 2001): 160–164. Accessed June 24, 2026. https://pub.isa-india.in/index.php/ija/article/view/4998.