KAILA, A. Phosphorus conditions at various depths in some mineral soils. Agricultural and Food Science, [S. l.], v. 35, n. 2, p. 69–79, 1963. DOI: 10.23986/afsci.71598. Disponível em: https://journal.fi/afs/article/view/71598. Acesso em: 19 mar. 2024.