Vol. 10, Issue 1, Part A (2026)

The field experiment was conducted in one of the protected plastic greenhouses, using a Randomized Complete Block Design (RCBD) with two factors. The first factor was a nutrient solution at three concentrations (0, 2, and 4 g/L), and the second factor was a bio-fertilizer at three concentrations (0, 2, and 4 mL/L). The means of the treatments were compared using the Least Significant Difference (LSD) test at a significance level of 0.05.The results indicated that the treatment with organic nutrient spraying at a concentration of 4 g/L significantly outperformed others in terms of nitrogen percentage (2.643%), phosphorus percentage (0.5900%), and potassium percentage (2.0067%) in the leaves compared to the control treatment. Additionally, the bio-fertilizer spraying treatment at a concentration of 4 mL/L significantly yielded the highest values for nitrogen percentage (2.113%), phosphorus percentage (0.5133%), and potassium percentage (1.8478%) compared to the control treatment.