摘要 : Twenty years old "Endory, Frantoyo, Shemlaly and Zafaraney" olive cultivars, grown in Gherian region at El-Gabal El-Gharby's Highland, Libya were conducted in this investigation. Three sources of organic fertilizers: camel, sheep ... 展开 Twenty years old "Endory, Frantoyo, Shemlaly and Zafaraney" olive cultivars, grown in Gherian region at El-Gabal El-Gharby's Highland, Libya were conducted in this investigation. Three sources of organic fertilizers: camel, sheep and chicken manures were used beside control trees "without manure". All vegetative growth characteristics, nutrients content, pigments content, C/N ratio, flowering, fruit set, yield, fruit physical and chemical characteristics and oil properties were significantly increased affected by organic manures applications during the two seasons. Chicken manure gave the highest values of all vegetative growth parameters including growth rate of trunk diameter (cm/year), number of the newly formed shoots per twig and its length (cm), number of leaves/shoot, leaf area (cm²), leaf contents of N, P and Ca %, fruit physical characteristics (length (cm), diameter (cm), weight (g), volume (cm³), flesh weight (g) and moisture content (%)). However, applying sheep manure was superior for increasing all flowering parameters (average number of inflorescences/twig, flowering density, average number of flowers/inflorescences, number of perfect flowers/inflorescence and sex ratio), fruit set and yield, flesh oil and total carbohydrates, leaf contents of K, Fe, Mg and pigments, bud content of carbohydrates and C/N ratio. Moreover, application of camel manure gave the highest values of leaf Ca, Z and Mn contents, oil acidity, iodine and peroxide values in all cultivars under study. 收起