Effect of Sugar Beet Compost and Effective Microorganisms (EM) on Growth and Productivity of Keitt cv. Mango Trees Under New Valley Conditions

Abstract

This study was carried out during two successive seasons (2020 and 2021) on the 5 -year- old of Keitt mango cultivar grown in a private orchard located at El-Farafrah Oasis in the New Valley Governorate, Egypt. The aim of this research was to study the effects of Four rates of sugar beet compost (control, 20%, 40% and 60%) of the trees actual nitrogen needs then we complete the actual tests of nitrogen for the tree from mineral fertilization, and Three concentration of Microorganisms (EM) (control, 75 and 100 ml/tree/year) on vegetative growth, yield and fruit quality of Keitt mango trees. The best results were recorded with Compost 40 % + 60 % mineral fertilizer level combined with 100 ml/tree microorganisms (EM) which improved vegetative growth parameters, yield and fruit quality of Keitt mango trees under heat stress conditions.