Sultan MY, Yassen MM. The quality of root exudates and the effect of type and age of plant and soil in iron, zinc readiness in soil rhizophere and bulk soil. JKAS [Internet]. 2018 Mar. 6 [cited 2024 Nov. 5];5(5):762-76. Available from: https://journals.uokerbala.edu.iq:8443/index.php/Agriculture/article/view/666