Kinana Omran(1), Mohammad Battha(2) and Ali Elkhateeb(3)
(1) .Faculty of Science, Damascus University, Damascus, Syria.
(2) .Faculty of Agriculture , Damascus University, Damascus, Syria.
(3).General Commission Agriculture Scientific Research, Lattakia, Syria.(*Correspondingauthor:KinanaOmran.Email:kinana.omran@damascusuniversity.edu.sy,KINANA6@yahoo.com, 0933472876).
Received:6/10/2023 Accepted:6/01/2024
Abstract:
The research was carried out at the Cyano Citrus Research Station in Jableh, affiliated with the Center for Scientific Agricultural Research in Latakia – the General Authority for Scientific Agricultural Research – the Ministry of Agriculture and Agrarian Reform, during the growing seasons 2018 and 2019, by studying many morphological, production on the Orange Valencia variety. We used NPK fertilizers, natural fertilizers (cow waste, sheep waste, chicken dung), potassium humate, in addition to minor mineral elements (Boron, zinc, iron, manganese). With the aim of determining the effect of organic and inorganic fertilizers on the growth and productivity of Valencia orange. Fertilizing Valencia orange trees with mineral fertilizers or with different types of organic fertilizers gave good positive results compared to the control, and the use of a mixture of natural fertilizers, whether alone or in interaction with NPK or with humic acids or with foliar spraying with some microelements, has a significant positive effect on all The growth indicators studied, as well as productivity that reached 94.2 kg/tree for the interaction treatment between NPK and the natural fertilizer mixture.
Keywords: Valencia orange variety, natural fertilizers, mineral fertilizer, growth indicators, productivity.
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