Abstract

This study was conducted in olive farm in General Commission of Desertification Combat / Enna County in Al Anbar Province during 2012, in order to study the impact of leafy spraying with boric acid at (100, 150 mg. liter -1), zinc sulfate at (5000 mg. liter -1) and Fe-EDDHA at (1000 mg .liter-1) and the mixture of them, on the growth and production of olive cv. Nibali Mohassan. The spraying was done until trees become wet completely dated 25/4/2012 at full bloom and spray the second month after the first spray. The design of experiment was full randomized blocks with three repeliciates, and LSD at level 5% was calculated to all treatments.The results showed that spraying with boric acid at 150 mg .liter -1 gave significant increase in shoot length , leaf area and fruits weight which reached 5,86 cm, 7.247 cm, 3.29 g respectively, comparing with other applications that caused trait 's decrease to reach 3.00 cm, 6.327 cm2, 2.7639 respectively. And the spraying with 150 mg . liter -1 boric acid + 5000 mg. liter -1 + zinc sulfate caused significant increase in oil percentage reached 19.09% comparing with 15.85%.While the treatment with 100 mg. liter -1 boric acid + 500 mg . liter -1+1000 mg. liter -1 Fe –EDDHA have had a good impact of studied characters such as leaf area, relative chlorophyll, fruit set, fruit coefficient, and production.Whereas the application (150 mg . liter -1 boric acid + 5000 mg. liter -1 zinc sulfate, 1000 mg .liter -1 Fe-EDDDHA) indicated a significant increase relative chlorophyll and boron content in leaves, and also increase the fruit set and fruit coefficient