Rhizobia inoculation and liming increase cowpea productivity in Maranhão State. Acta Scientiarum. Agronomy, [S. l.], v. 38, n. 3, p. 387–395, 2016. DOI: 10.4025/actasciagron.v38i3.28630. Disponível em: https://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/28630. Acesso em: 3 jun. 2026.