ABDULHAMEED YASEEN, S.; R. AL-ZUBAYDI, S. EFFECTS OF FOLIAR APPLICATION OF (NH4)2SO4 AND ALGA21ST ON VEGETATIVE GROWTH AND CHLOROPHYLL CONTENT OF TWOCULTIVARS SWEET CHERRY (PrunusaviumL.) TRANSPLANTS. Journal of Duhok University, v. 22, n. 1, p. 78-88, 1 Aug. 2019.