The Effect of Organic and Chemical Fertilizers and Moringa Leaves Extract on the Content of some Compounds and Nutrients in Olive Leaves

Abstract

The study was Conducted in the Orchard of the Department of Horticulture and Landscape Engineering at the College of Agriculture-University of Anbar for the season 2021-2022 on Olive Trees, cv. K18, at the age of 8 years, to find out the effect of adding Organic fertilizer at levels H0 without addition and H1, adding Humic acid at a Concentration of 10 g L-1 and H2, adding poultry waste at a level of 8 kg Tree-1 and the addition of NPK in three Concentrations N0 without addition and N1 concentration of 50g Tree-1 and N2 Concentration of 100g Tree-1 and spraying with Moringa Leaves extract with two concentrations M0 without spraying and M1 spraying with a concentration of 4% in the Content of Olive tree Leaves of some compounds and nutrients. A factorial experiment was carried out according to the Randomized Complete Block Design RCBD with three Replications. The results showed the significant superiority of the Treatment of adding poultry waste at the level of 8kg Tree-1 in the Leaves Content of Total Phenols 105.59%, Phenol Oleuropein 92.03%, Nitrogen 1.585%, Phosphorus 0.119%, Potassium 0.831% and Magnesium 0.234%. and Calcium amounted to 1.239%, and the Treatment of adding Chemical fertilizer with a concentration of 100g Tree-1 excelled in all studied traits. As for spraying with Moringa Leaves extract, there were significant differences in the Leaves’ Content of compounds and nutrients. As for the binary and triple interactions between the study factors, they were There are significant differences in most of the studied traits.