BARBERIS, E.; CELI, L.; MARTIN, M. Speciation and bioavailability of soil nutrients: effect on crop production and environment. Italian Journal of Agronomy, [S. l.], v. 4, n. s1, p. 23–32, 2009. DOI: 10.4081/ija.2009.s1.23. Disponível em: https://www.agronomy.it/agro/article/view/ija.2009.s1.23. Acesso em: 18 dec. 2024.