Junior, Adilson de Oliveira, Luís Ignácio Prochnow, and Dirceu Klepker. “Agronomic Effectiveness of Phosphate Rock Evaluated in Soybean Crop”. Pesquisa Agropecuaria Brasileira 43, no. 5 (August 8, 2008): 623–631. Accessed January 28, 2026. https://apct.sede.embrapa.br/pab/article/view/177.