Sghaier A, Ayed RB, Sghaier N, Naggaz K, Ouessar M, Boujnah D. EFFECT OF IRRIGATION FREQUENCY ON THE YIELD AND VEGETATIVE GROWTH OF TWO OLIVE CULTIVARS (CVS . KORONEIKI AND PICHOLINE) I N ARID LANDS. Journal of Animal and Plant Sciences. 2019;29(4):1037-1045.