Venegas, Victor Hugo Alvarez, Francisco M. Freire, and Paulo Tácito G. Guimarães. “Optimum Relative Concentrations of Nitrogen, Phosphorus and Sulfur in Coffee Fertilization in a Dark-Red Latosol, at Machado, MG, Brazil”. Pesquisa Agropecuaria Brasileira 22, no. 2 (April 17, 2014): 145–152. Accessed July 6, 2026. https://apct.sede.embrapa.br/pab/article/view/14263.