Effect of Humic and Salicylic Acids Foliar Application on Vegetative Growth and Fruit Quality of Olive (c.v Sorani and Khadrawi)

This study was carried out on 15 years old trees of two Syrian olives (Olea europaea L.) cultivars Sorani and Khadrawi during 2020-2021 growing season at research orchard, Horticulture department / College Agricultural Engineering sciences, University Sulaimani, Iraqi Kurdistan region. Humic salicylic acids foliar application with three levels (0, 2000 4000 ppm) 750 1500 were applied respectively (before after full bloom as well fruit set). The parameters annual shoot length, set percentage, weight, volume, oil content in leaf (nitrogen, phosphorus potassium) studied, the results showed that cultivar had significant effects all studied except (fruit weight volume). Maximum concentration humic acid (4000ppm) recorded maximum values compared to other concentrations, also parameters. Except volume) be affected significantly by application.