RAJKUMARA, S; PALLED, Y B; BASAVARAJA, N; KHOT, A B. Weed-free period requirement of drill-sown onion (Allium cepa) – chilli (Capsicum annuum) – cotton (Gossypium herbaceum) relay intercropping system in rainfed Vertisols. The Indian Journal of Agricultural Sciences, Delhi, India, v. 80, n. 7, 2010. Disponível em: https://epubs.icar.org.in/index.php/IJAgS/article/view/283. Acesso em: 26 oct. 2025.