The Effect of Foliar Spray by Mixture of Boron and Zinc on Yield and Fruit Quality of Var. AL Khelkhaly Olive Tree. مجلة الجامعة [Internet]. 2020 Sep. 8 [cited 2026 Apr. 26];3(5). Available from: https://hama-univ.edu.sy/ojs/index.php/huj/article/view/371