Vol. 9, Issue 6, Part H (2025)

Modern agricultural practices emphasize enhancing plant productivity and development through the use of organic extracts and bio-fertilizers, which serve as natural reservoirs of essential nutrients and are considered effective and readily absorbed by plants. A field experiment was conducted during the autumn season of 2024-2025 to enhance the bioactive compounds in coriander (Coriandrum sativum L.) using organic extracts and microbial inoculants, aiming to reduce the negative impact of chemical fertilizers. The experiment was arranged using a split-plot design within a randomized complete block design (R.C.B.D) with two factors. The first factor was microbial inoculation, consisting of four treatments: control (no addition), Mycorrhiza (10 g·L⁻¹), Trichoderma (10 g·L⁻¹), and Bacillus (10 g·L⁻¹), denoted as M1, M2, M3, and M4, respectively. The second factor was foliar spray extracts: control (no addition), Moringa leaf extract (10 g·L⁻¹), and sprouted barley extract (100 g·L⁻¹), denoted as E1, E2, and E3, respectively. Treatment means were compared using the Least Significant Difference (L.S.D.) test at a 0.05 probability level. The results revealed that both individual and combined treatments showed statistically significant differences. The individual microbial treatment M4 demonstrated a significant superiority in plant height, number of branches, number of leaves, antioxidant content, and amino acid content in coriander plants, recording the highest values of 111.33 cm, 20.14 branches·plant⁻¹, 112.0 leaves·plant⁻¹, 62.51 mg·100g⁻¹, and 8.9722 mg·100g⁻¹, respectively. In contrast, the highest total yield was recorded by treatment M3, reaching 3652 kg·ha⁻¹.Foliar spray treatments also exhibited significant differences, with treatment E3 showing a significant increase in plant height, total yield, and amino acid content in coriander, recording maximum values of 108.50 cm, 3532 kg·ha⁻¹, and 8.9570 mg·100g⁻¹, respectively. Meanwhile, treatment E2 significantly improved the number of branches and antioxidant content, achieving the highest values of 19.21 branches·plant⁻¹ and 61.61 mg·100g⁻¹, respectively. Regarding the interaction between microbial and foliar treatments, significant differences were also observed. The combined treatment M4E3 recorded the highest values in plant height, number of branches, and amino acid content, reaching 114.00 cm, 21.40 branches·plant⁻¹, and 9.0310 mg·100g⁻¹, respectively. In terms of number of leaves and antioxidant content, the highest values were observed in treatment M4E1, which reached 125.6 leaves·plant⁻¹ and 65.44 mg·100g⁻¹, respectively.