Parentoni, Sidney Netto, and Claudio Lopes de Souza Júnior. 2008. “Phosphorus Acquisition and Internal Utilization Efficiency in Tropical Maize Genotypes”. Pesquisa Agropecuaria Brasileira 43 (7):893-901. https://doi.org/10.1590/S1678-3921.pab2008.v43.268.