Effect of silicon sources on rice diseases and yield in the State of Tocantins, Brazil - doi: 10.4025/actasciagron.v33i3.6573. Acta Scientiarum. Agronomy, [S. l.], v. 33, n. 3, p. 451–456, 2011. DOI: 10.4025/actasciagron.v33i3.6573. Disponível em: https://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/6573. Acesso em: 31 maio. 2026.