The Effect of Foliar Spray by Mixture of Boron and Zinc on Yield and Fruit Quality of Var. AL Khelkhaly Olive Tree. Journal of Hama University , [S. l.], v. 3, n. 5, 2020. Disponível em: https://hama-univ.edu.sy/ojs/index.php/huj/article/view/371. Acesso em: 26 apr. 2026.