Study of the major elements (Fe, Zn, Cu) in wheat product (Triticum aestivum L) grown in two soils with different gypsum content and treated with phosphorus and magnesium. Euphrates journal of agricultural science, [S. l.], v. 18, n. 2, 2026. Disponível em: https://ejs-agri.com/index.php/EJAS/article/view/722. Acesso em: 12 nov. 2026.