Allelopathic Effect of Populus Nigra Bark on Zea Mays in Agroforestry Ecosystems. Global Journal of Science Frontier Research, [S. l.], v. 16, n. 11, p. 21–27, 2016. Disponível em: https://www.journalofscience.org/index.php/GJSFR/article/view/. Acesso em: 1 nov. 2026.