International Research Journal of Innovations in Engineering and Technology - IRJIET International Open Access, Monthly, Peer Reviewed, Reputed Journal ISSN (online): 2581-3048

Impact Factor (2025): 6.9

DOI Prefix: 10.47001/IRJIET

Influence of Foliar Spraying with Macro and Microelements on the Growth and Productivity of Olive Trees in Idleb Province

Dr. Rida DRAIEFaculty of Agricultural Engineering, University of Idleb, SyriaDr. Waseem ALHAJ-RABIEFaculty of Agricultural Engineering, University of Idleb, SyriaAsmaa AL-MAHMOUDPostgraduate Student, MA, Faculty of Agricultural Engineering, University of Idleb, Syria

Vol 4 No 4 (2020): Volume 4, Issue 4, April 2020 | Pages: 12-24

International Research Journal of Innovations in Engineering and Technology

OPEN ACCESS | Research Article | Published Date: 13-04-2020

doi Logo doi.org/10.47001/IRJIET/2020.404003

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Abstract

In this research, the effect of foliar spraying, with macro and microelements on the productivity of Sourani olive variety, was studied in Arab-Said village (which is 5 km west of Idleb), during the years 2012-2013. A randomized block design was used, and 4 treatments were performed, each of which contained 5 replicates, each replicate was one olive tree. During the experiment, foliar spraying was applied with a mix of macro and microelements, so that the treatments differed between them by the number of sprayings (0, 1, 2, and 3) and their dates (before flowering, one week after flowering, and two weeks after the second spraying). The results showed that all foliar spraying treatments outperformed the control, with a significant increase, in most of the indicators and parameters studied: the leaf surface (2.41 cm2), the number of flowering cluster/branch (13.32), the number of flowers/flowering clusters (8.88), the number of flowers/branch (359.2), the percentage of fruit-set (0.61%), the number of fruits/branch (24.41), the fruit weight (0.98 g), the fruit size (0.49 mL), and pulp/fruit ratio (3.43%). Where spraying once before flowering had the most significant increase compared to other spraying treatments. While the increase in the number of spraying times did not have any significant effect on the previous indicators, it led to a significant increase in the vegetative growth index (6.75cm), in the productivity/tree (39.42 kg), and in the percentage of oil (5.28%), compared to the control. Finally, the results showed that production varied greatly between the two years of the study (the phenomenon of alternate-bearing), but that all experimental treatments reduced this difference comparing to the control.

Keywords

Olive Tree, Foliar Spraying, Macro & Microelements, Vegetative Growth, Productivity


Citation of this Article

Dr. Rida DRAIE, Dr. Waseem ALHAJ-RABIE, Asmaa AL-MAHMOUD, “Influence of Foliar Spraying with Macro and Microelements on the Growth and Productivity of Olive Trees in Idleb Province” Published in International Research Journal of Innovations in Engineering and Technology - IRJIET, Volume 4, Issue 4, pp 12-24, April 2020.  https://doi.org/10.47001/IRJIET/2020.404003

Licence Copyright (c) 2026 International Research Journal of Innovations in Engineering and Technology creative common licence This work is licensed under Creative common Attribution Non Commercial 4.0 Internation Licence
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