Zeinab Shabab 1*, Ghaithaa Wanas1 , and Aziza Ajouri 2

1 Dept. of Horticulture, Faculty of Agricultural Engineering, University of Aleppo, Aleppo, Syria.
2Dept. of soil section, Faculty of Agricultural Engineering, University of Aleppo, Aleppo, Syria.
(*Corresponding author: Zeinab Shabab E-mail: zeinab.shabab99@gmail.com).

Received: 24/ 10/ 2025        Accepted: 24/ 12/ 2025

Abstract

The study was carried out in an open field in the village of Al-Zahabiya, rural Aleppo, during the 2024 agricultural season, with the aim of investigating the effects of fertilization with Vermicompost tea and seaweed extract on the growth and productivity of the green bean cultivar (Bint Tima), using a Randomized Complete Block Design (RCBD) with three replications per treatment. The study comprised ten treatments: a control, mineral fertilizer (NPK), Vermicompost tea at two concentrations (10 and 15 g/L), seaweed extract at two concentrations (1 and 2 g/L), in addition to their combined applications. The results indicated that the applications of Vermicompost tea and seaweed extract, particularly their combined use, resulted in a reduction in the number of days to the onset of flowering and an increase in the number of flowers and pods, as well as the pod-setting percentage, compared to the control. Treatment T10 (Vermicompost tea 15 g/L + seaweed extract 2 g/L) demonstrated significantly superior performance over all other treatments. It recorded the lowest number of days to flowering (30.17 days), and the highest values for the number of flowers (116.72 flowers/plant), pod-setting percentage (62.36%), number of pods (72.79 pods/plant), productivity per plant (0.48 kg), and productivity per unit area (3.22 kg/m²). Furthermore, the Vermicompost tea 15 g/L treatment alone achieved the highest average pod weight (6.79 g) among all treatments. The two treatments (Vermicompost tea 10 g/L + seaweed extract 2 g/L) and (Vermicompost tea 15 g/L + seaweed extract 1 g/L) yielded comparable results, which were significantly superior to most other treatments. In contrast, the control treatment recorded the lowest values for all studied traits. These results demonstrate that the combined application of Vermicompost tea and seaweed extract is an effective and sustainable option for improving the growth and productivity of the green bean cultivar (Bint Tima) compared to mineral fertilization.

Keywords:Green bean, Vermicompost tea, Seaweed extract, Productivity.

 Full paper in Arabic: PDF