YOUSIF, Kurdistan H. Application Method of Potassium Humate on Growth And Yield of Green Onion (Allium Cepa L.). Science Journal of University of Zakho, [S. l.], v. 2, n. 2, p. 323–328, 2014. Disponível em: https://stest.uoz.edu.krd/index.php/sjuoz/article/view/250. Acesso em: 22 jan. 2026.