Effect of Humic Acid-Fortified Compound Fertilizer, Organic Amendment, and Biofertilization on Selected Growth Traits and Leaf Nitrogen, Phosphorus, and Potassium Concentrations in Barley. Murtada Reda Sadiq1, Basem Rahem Bader2*. (2026). Euphrates Journal of Agricultural Science, 18(2). https://ejs-agri.com/index.php/EJAS/article/view/667