UUSITALO, R.; TURTOLA, E.; GRÖNROOS, J. Finnish trends in phosphorus balances and soil test phosphorus. Agricultural and Food Science, [S. l.], v. 16, n. 4, p. 301–316, 2007. DOI: 10.2137/145960607784125339. Disponível em: https://journal.fi/afs/article/view/5887. Acesso em: 16 jul. 2024.