The Relationship Between Hydrogen Peroxide, Zinc, and Humic Fulvic Acid in some of Elemental Content in Barley Plant (Hordeum vulgare L.). Journal of the College of Basic Education, [S. l.], v. 24, n. 102, p. 15–26, 2022. DOI: 10.35950/cbej.v24i102.6389. Disponível em: https://cbej.uomustansiriyah.edu.iq/index.php/cbej/article/view/6389.. Acesso em: 30 jun. 2024.