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. EJAS [Internet]. 2026 Jun. 30 [cited 2026 Nov. 12];18(2). Available from: https://ejs-agri.com/index.php/EJAS/article/view/722