Allelopathic Effect of Root Exudates of Two Sunflower Cultivars on Companion Weeds. Iraqi Journal of Science, [S. l.], v. 55, n. 4A, p. 1516–1509, 2023. Disponível em: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/11247.. Acesso em: 20 may. 2024.