KAILA, A.; KIVEKÄS, J. Distribution of extractable calcium, magnesium, potassium, and sodium in various depths of some virgin peat soils. Agricultural and Food Science, [S. l.], v. 28, n. 1, p. 237–247, 1956. DOI: 10.23986/afsci.71404. Disponível em: https://journal.fi/afs/article/view/71404. Acesso em: 5 jul. 2024.