SHUKLA, S K; MENHILAL, MENHILAL. Competition functions and productivity in sugarcane-based associative and successive cropping systems in relation to nitrogen and sulphur nutrition. The Indian Journal of Agricultural Sciences, Delhi, India, v. 72, n. 6, 2014. Disponível em: https://epubs.icar.org.in/index.php/IJAgS/article/view/40881. Acesso em: 28 oct. 2025.