Machado, M.O. et al. 2014. Lime and rates and sources of phosphorus as influencing soybean yield and chemical properties of Pelotas soil (Alfisol). Pesquisa Agropecuaria Brasileira. 18, 7 (Apr. 2014), 721–727. DOI:https://doi.org/10.1590/S1678-3921.pab1983.v18.15349.