AL-ASHOR, A. A. M. Interaction Effect of Phosphorus and Zinc Fertilizer for Different Levels in Growth of Two Varieties of Wheat Plant. Ibn AL-Haitham Journal For Pure and Applied Sciences, Baghdad, Iraq., v. 23, n. 1, p. 117–129, 2017. Disponível em: https://jih.uobaghdad.edu.iq/index.php/j/article/view/983. Acesso em: 14 apr. 2025.