الفهرس 
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Abstract
In this work four experiments was conducted to investigate the effect of calcium carbonate and kaolin in mid Dec., mid Jan. and in mid Feb., chemical spraying of naphthalene acetic acid at 50, 100 & 150 ppm and boric acid at 300, 600 and 900ppm, ringing & girdling in mid December and in mid Jan. and irrigation experiment in 40, 60 and 80 liter/tree levels daily on olive productivity and quality of two olive cultivars namely (Aggezi) as table cv. and (Picual) as double purpose cv. throughout two successive seasons (2011and 2012). These trees were 15-years-old and planted at 6 x 6 m. Apart in a sandy soil in a private orchard at Al-Khatatba, Minufiya Governorate, Egypt at 30.6 N latitude, 31.01 S longitude, at an elevation of 17.9 m above sea level. The study aims at improving growth and productivity of olive trees under insufficient chilling requirements. Data revealed that, the foliar application of kaolin (5%) in mid Dec., mid Jan. and mid Feb. improved fruit set and enhanced fruit weight and yield, whereas calcium carbonate (5%) applied in mid Feb. increased oil percentage as dry weight. The application of girdling in mid Dec.and in mid Jan. improved fruit set and yield and enhanced fruit weight, whileas double ringing applied in mid Dec. improved oil percentage as dry weight. Spraying with Naphthalene acetic acid at 100 ppm increased fruit set and yield. Naphthalene acetic acid at 50ppm and 150ppm enhanced fruit weight and improve oil percentage as dry weight. Foliar application of Boric acid at 300ppm enhanced fruit set, yield, fruit weight and improved oil percentage as dry weight. Finaly, irrigation with 80 liters per tree level daily improved fruit set, yield and fruit weight of both cultivars, whereas the 80 liter per tree day after day improved oil percentage in Picual cv.. Also, the irrigation with 60 liters level gave the same analogous effect on Aggezi cv..
Key words: Kaolin, Calcium carbonate, Girdling and ringing, Naphthalene acetic acid, Boric acid, irrigation, Olive, Productivity, Oil quality.