Effect of Different Quantities of Liquid Organic Fertilizer on Chilli Growth, Quality, and Yield

Abstract

The study investigates the effects of varying concentrations of SVM-Gold, a liquid organic fertilizer enriched with humic acids, amino acids, and micronutrients, on chilli’s growth, yield and quality (Capsicum annuum L.). Conducted during the kharif season of 2024 at SHUATS, Prayagraj, the experiment employed a Randomized Block Design comprising nine treatments, including a control with the recommended dose of chemical fertilizers. Results demonstrated that SVM-Gold at 3.0 L/ha (T7) significantly enhanced plant growth metrics such as germination rate (5.5 days), plant height (79.97 cm), number of branches (8.53), leaf area index (186.21) and biochemical attributes such as ascorbic acid (144.48 mg/100g) and total soluble solids (4.91 °Brix). Yield performance was notably superior in T7, recording 123.79 fruits per plant and a yield of 18.39 t/ha, nearly tripling the control yield. Furthermore, T7 achieved the highest economic returns, with a net return of Rs. 142,191/ha and a benefit-cost ratio of 3.69. The findings substantiate SVM-Gold as a sustainable alternative to conventional fertilizers, supporting environmentally responsible chilli production. However, higher doses (≥3.5 L/ha) showed diminishing returns, emphasizing the need for precise application strategies. This research highlights the agronomic and economic viability of biostimulants in enhancing horticultural productivity under organic input regimes.