INSIGHT INTO THE EFFECT OF FISH OIL AND EXTRACTS OF LEMON GRASS AND TURMERIC ON PRODUCTIVITY OF NAVEL ORANGES

Throughout 2017 and 2018 seasons Navel oranges received there sprays of fish oil and extracts of lemon grass and turmeric each at 0.5 to 2.0%. The effect of these natural materials on the leaf area, total chlorophylls, the percentages of N, P and K fruit retention, the yield per tree and per feddan (1.038 acres), and the physical and chemical characteristics of the fruits have been investigated for merit.

Exposing Navel orange tree three times with fish oil and extracts of lemon grass and turmeric at 0.5 to 2.0% had synergistic effects on Leaf region, complete chlorophyll N, P, K, retention of fruit, yield and fruit characteristics over the control. The occurred promotion was considerably associated with using fish oil and extracts of lemon grass and turmeric in ascending order. Increasing concentrations was followed by a gradual stimulation on all the investigated parameter.

Treating Navel orange trees three times with turmeric extract at 1% resulted in maximizing the yield and producing better fruit characteristics.