KIVEKÄS, J.; KAILA, A. Extractable calcium, magnesium, potassium and sodium in diefferent peat types. Agricultural and Food Science, [S. l.], v. 29, n. 1, p. 41–55, 1957. DOI: 10.23986/afsci.71432. Disponível em: https://journal.fi/afs/article/view/71432. Acesso em: 23 nov. 2024.