PESSI, Y. Fen fertilization with potash in the light of tests at Leteensuo experimental station. Agricultural and Food Science, [S. l.], v. 32, n. 1, p. 229–238, 1960. DOI: 10.23986/afsci.71531. Disponível em: https://journal.fi/afs/article/view/71531. Acesso em: 9 may. 2024.