Effects of different zinc dose applications on yield and some quality of olives grown at Southeastern Anatolia Region
Nutrient problems often occur in our olive gardens because they are widespread in inclined lands and do not have enough maintenance works. Although olives are rich plants of poor soil, they are also extremely sensitive to lack of plant nutrients such as boron, zinc and iron. The aim of this study was to determine the requirement for micro-nutrient of 'Gemlik' olive cultivar. This research was carried out by the GAP Agricultural Research Institute for 5 years. In the trial, olive trees were 13 years old and planted at 6×6 interval-distance and zinc sulfate (ZnSO4.7H2O, 23% Zn) was used as zinc source. The experiment was designed as randomized block design with three replications. The first two years the applications were not started and only yield values were determined. After the second year the nutrient application was started. Within the scope of this study Zn (0-300-600-900 ppm) was sprayed on foliar at different concentrations in 2 periods with 15 days intervals about three weeks before flowering in spring. According to results of the chemical and pomological analysis, it was determined that different dozes of foliar Zn fertilization have some improvement effect on yield and quality but this increase did not have an important effect statistically. However, some quality parameters were found statistically significant. The aim of this study was to determine the efficiency of applicability of olive leaf fertilization and effect on yield and quality of the fruit in arid conditions like the Southeastern Anatolia Region.
Söylemez, S., Kara, H., Almaca, N.D., Sakar, E. and Ak, B.E. (2020). Effects of different zinc dose applications on yield and some quality of olives grown at Southeastern Anatolia Region. Acta Hortic. 1280, 31-38
Sanliurfa, olive, zinc, yield and quality