Faria, C.M.B. de, Pereira, J.R. and Morgado, L.B. (2014) “Soil phosphorus availability and estimation of optimum levels of applied phosphate for tomato in the sub-middle São Francisco river Valley”, Pesquisa Agropecuaria Brasileira, 21(2), pp. 111–116. doi:10.1590/S1678-3921.pab1986.v21.14676.