CHAUDHARY, S K; RAO, P.V.R; JHA, P K. Productivity and nutrient uptake of rice (Oryza sativa) varieties as affected by nitrogen levels under rainfed lowland ecosystem*. The Indian Journal of Agricultural Sciences, Delhi, India, v. 78, n. 5, 2008. Disponível em: https://epubs.icar.org.in/index.php/IJAgS/article/view/9798. Acesso em: 27 oct. 2025.