Oliveira, S. C. de, Costa, M. C. G., Chagas, R. de C. S., Fenilli, T. A. B., Heinrichs, R., Cabral, C. P., & Malvolta, E. (2003). Response of two rice cultivars to rates of zinc applied as oxysulfate. Pesquisa Agropecuaria Brasileira, 38(3), 387–396. https://doi.org/10.1590/S1678-3921.pab2003.v38.6585