Fadi Abbas*(1), Salwa Saadia(2), Hassan Al-Shbat (2), and Fuad Wassouf(2)
(1). Director of researches at the Homs Research Center, General Commission for Scientific Agricultural Research, Homs, Syria.
(2). Researcher at the Homs Research Center, General Commission for Scientific Agricultural Research, Homs, Syria
(*Corresponding author: Fadi Abbas, Email: fadiab77@gmail.com ).
Received: 28/5/2025 Accepted: 27/2/2025
Abstract:
This research was carried out at the General Commission for Scientific Agricultural Research, at the Homs Research Center during the 2022/2023, 2023/204 agricultural season, to study the effect of fertilizing with VC at rates of 2, 4, 6, and 8 tons. ha-1 compared to adding 100% mineral fertilizer (225 kg of nitrogen in the form of urea 46% N, 100 kg phosphate in the form of triple superphosphate 46% H3PO4, 100 kg potash in the form of potash sulphate 50% K2O/ha). Spraying treatment with VCT three times, with an interval of two weeks between spraying and the next, with half the amount of mineral fertilizer, in addition to a treatment without fertilization was considered as a control. The experiment was designed according to randomized complete block design (RCBD), with three replicates. The results showed that the VC treatment of 8 tons.ha-1 was superior to all the treatments studied, as this treatment achieved the best growth indicators (plant height, leaf area, and crop growth rate), and also achieved the best yield indicators (number of spikes, number of grains per plant, grain yield, and percentage protein in grains), The VC treatment 6 tons.ha-1 achieved values similar to the 100% mineral fertilization treatment in grain yield, but superior to it in protein percentage. The treatment of spraying with VCT and the 50% mineral fertilization treatment also achieved significant differences over the 100% mineral fertilization treatment in the grain yield and protein percentage in grains. Thus, the research concluded that it is possible to replace mineral fertilization at a rate of 6 tons.ha-1 VC to rationalize the use of mineral fertilizers and 8 tons.ha-1 to increase grain yield. Half the number of mineral fertilizers can be dispensed with in exchange for three sprays of VCT.
Keywords: Vermicompost, Vermicompost tea, Growth, Yield, Durum wheat.
Full paper in Arabic: PDF