YADAV, R L; KUMAR, Rajesh. On-farm comparison of ring-pit and conventional flat planting methods for yield and quality of sugarcane in northwest India*. The Indian Journal of Agricultural Sciences, Delhi, India, v. 75, n. 9, 2005. Disponível em: https://epubs.icar.org.in/index.php/IJAgS/article/view/9159. Acesso em: 27 oct. 2025.