Silva, D. J., Venegas, V. H. A., & Ruiz, H. A. (2002). Sulphur transport toward soybean roots in three soils from Minas Gerais State, Brazil. Pesquisa Agropecuaria Brasileira, 37(8), 1161–1167. https://doi.org/10.1590/S1678-3921.pab2002.v37.6450