Chaudhary, S K, P.V.R Rao, and P K Jha. “Productivity and Nutrient Uptake of Rice (Oryza Sativa) Varieties As Affected by Nitrogen Levels under Rainfed Lowland Ecosystem*”. The Indian Journal of Agricultural Sciences 78, no. 5 (May 5, 2008). Accessed October 27, 2025. https://epubs.icar.org.in/index.php/IJAgS/article/view/9798.