Vol. 6, Issue 1, Part B (2024)

A field experiment was conducted during the 2023 growing season. The experiment aimed to investigate the impact of four treatments of coated urea fertilizer. The experiments aim to assess the efficiency of the coating in providing nitrogen during the crop growth period while reducing production costs. The experiment involved three factors: Factor 1: Coating Material Type (F): four coating materials were selected, and uncoated urea including: F1: Uncoated urea (control), F2: Finely ground tree bark + Arabic gum + water, F3: Finely ground tree bark + paraffin wax, F4: Residual oil + sulfur + soybean oil, F5: Residual oil + finely ground compost + soybean oil. Factor 2: Fertilizer Application Method (M): M1: Broadcasting Method: M2: Banding Method and Factor 3: Nitrogen Fertilizer Splitting (P): P1: Two Splits and P2: Three Splits. Coating treatment F2 exhibited significantly higher compared to the other coated treatments. All coated treatments Were significantly superior over the uncoated urea treatment in terms of Nitrogen and Phosphorus concentration in plant leaves. However, all coated treatments Were superior over the uncoated urea treatment in these parameters. While F3 coating treatment superior over the other coated treatments in terms of Potassium concentration in plant leaves, and all coated treatments superior over the uncoated urea treatment. F2 coating treatment superior over the other coated treatments in terms of total soluble solids and vitamin C concentration in pepper fruits, and all coated treatments superior over the uncoated urea treatment in terms of total soluble solids and vitamin C concentration in pepper plants.. Regarding application method, the banding method (M2) Were superior over the broadcasting method (M1) across all treatments. Regarding nitrogen fertilizer splitting, splitting into three applications (P2) generally Were superior over splitting into two applications (P1) in most plant traits (total soluble solids and vitamin C concentration in pepper plants). Splitting into two applications (P1) was superior only in terms of (NPK) concentration in plant leaves.