T. PAUL, P.S. BISHT, P.C. PANDEY, D.K. SINGH, and S. ROY. 2001. “Rice Productivity and Soil Fertility As Influenced by Nutrient Management in Rice (Oryza sativa)wheat (Triticum Aestivum) Cropping System”. Indian Journal of Agronomy 58 (4): 495-99. https://doi.org/10.59797/ija.v58i4.4256.