Ammar nbeaa *(1) Ali Dib(1) and Ali Elkhateeb(2)
(1). Horticulture Department, Agriculture College Tishreen University, Lattakia,Syria.
(2). General Commission for Scientific Agricultural Research, Lattakia, Syria.
(*Corresponding author: ammar mouhamad nbeaa. E-Mail: ammar.nbeaa1991@gmail.com ).
Received: 14/12/2022 Accepted: 15/03/2023
Abstract:
The study was carried out during (2020 and 2021) at Setkhiris village which belonging to the countryside of Lattakia Governorate, in citrus orchard containing (36) trees of citrus paradise at the age of 25 years old and grafted on citrumelo as root stock, to study the impact of foliar spray with mixture of macronutrients (N,P,K)(2 g/l) , mixture of micronutrients (Fe,B,Mg,Zn) (1g/l) and citric acid(1 g/l) , on the growing and fruiting properties of the citrus paradise. The results showed positive effects of the treatments in improving vegetative growth parameter, flowering , fruiting and fruit production compared to the control , at treatment of multi fertilization with mixture of macronutrients, mixture of micronutrients and citric acid spray achieved the highest number of vegetative growths (9.5),and the highest percentage of fruit quide (4.22%), The same treatment also gave the largest amount of production (223.5kg/tree). and spraying treatment with mixture of macronutrients and mixture of micronutrients gave the highest value for leaf area (48.47 cm2), Also, spraying with mixture of micronutrients and citric acid gave the highest value for the total number of flowers (73.33).
Key words: citrus paradise, citrumelo, fertilize, Spray on the shoots, productive qualities.
Full paper in Arabic: pdf