RANA, BISWAJIT et al. Optimization of N dose in rice under conservation agriculture with sub-surface drip fertigation. The Indian Journal of Agricultural Sciences, Delhi, India, v. 91, n. 4, p. 509–514, 2021. DOI: 10.56093/ijas.v91i4.112625. Disponível em: https://epubs.icar.org.in/index.php/IJAgS/article/view/112625. Acesso em: 27 oct. 2025.