Effect of Different Forms of Calcium and Methods of Addition on Vegetative Growth and Nutritional Status of Fruitful Naomi Mango Trees.

Document Type : Original Article

Authors

1 Horticulture Department, Faculty of Agriculture, Benha University, Moshtohor, Toukh, Egypt.

2 Horticulture Department, Faculty of Agriculture (Moshtohor), Benha University, Egypt

Abstract

This study was conducted during two successive 2023 & 2024 seasons, carried out on 8-year-old fruitful mango trees of the "Naomi" cultivar. In an orchard with sandy soil that received drip irrigation and was situated along a private orchard located in the International Coastal region - Kafr El-Sheikh Governorate-Egypt, trees were planted at (2 x 4 m) apart including 480 trees / feddan. The two factors in the factorial experiment were the method of addition and various forms of Ca (calcium Boron Acetate, calcium Boron pectate and Calcium nitrate). The specific and interaction effects of the two studied factors were evaluated by determining the changes (response) exhibited in the vegetative growth (Shoot length and average leaf area) as well as nutritional status (Total chlorophyll and leaf (N, P, K, Ca, Mg as percentages" %") and (Fe, Zn and Mn part per million "ppm"). The foliar spraying calcium Boron Acetate rates and Calcium nitrate Soil addition and interaction between proved to be the most effective treatment for most of the parameters examined in this study compared with water sprayed trees (control). On the contrary, the trend of response took the other way around with P concentrations that showed a progressive increase with the gradual increase in untreated "control" treatments.

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