BARIK, K C; CHANDEL, A S. Effect of copper levels on growth, grain yield and copper uptake different varieties of soybean (Glycine max)*. The Indian Journal of Agricultural Sciences, Delhi, India, v. 71, n. 2, 2014. Disponível em: https://epubs.icar.org.in/index.php/IJAgS/article/view/39556. Acesso em: 25 oct. 2025.