AURA, E. Determination of available soil phosphorus by chemical methods . Agricultural and Food Science, [S. l.], v. 50, n. 4, p. 305–316, 1978. DOI: 10.23986/afsci.71982. Disponível em: https://journal.fi/afs/article/view/71982. Acesso em: 23 nov. 2024.