Abdulhameed Yaseen, S., and S. R. AL-Zubaydi. “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, Vol. 22, no. 1, Aug. 2019, pp. 78-88, doi:10.26682/avuod.2019.22.1.8.