Galrão, E.Z. and Andrade, R.P. de 1992. Application of micronutrients, cobalt and sulphur on seed yield of <i>Stylosanthes</i> in a cerrado soil. Pesquisa Agropecuaria Brasileira. 27, 2 (Feb. 1992), 237–240. DOI:https://doi.org/10.1590/S1678-3921.pab1992.v27.3641.