saied fisal, mohamed, and محمد. “Effect of Allelopathic Potential of Corn, Sunflower , Field Capacity and Ascorbic Acid In Growth of Two Wheat Cultivars”. Journal of Education and Science (JES), vol. 29, no. 2, June 2020, pp. 260-78, doi:10.33899/edusj.2020.126418.1034.