SINGH, Shishu Pal; SINGH, Vinay. Effect of nitrogen, sulphur and zinc on Indian mustard (Brassica juncea)*. The Indian Journal of Agricultural Sciences, Delhi, India, v. 75, n. 12, 2005. Disponível em: https://epubs.icar.org.in/index.php/IJAgS/article/view/9323. Acesso em: 27 oct. 2025.