Effect of Nano-fertilizers and Micronutrient Applications on Yield and Economics of Tomato (Lycopersicon esculentum Mill.) cv. Heemsohna

Aims: This study investigates the impact of nano-fertilizers and micronutrient applications on the fresh yield and economic returns of tomato (Lycopersicon esculentum Mill.) cv. Heemsohna under field conditions. Place, Duration and Study Design: This experiment was conducted at Sam Higginbottom University of Agriculture Technology and Sciences, Prayagraj, across two summer growing seasons (2021-22 and 2022-23), the experiment employed a factorial randomized block design with 20 treatment combinations, including varying foliar applications of Nano-NPK and nano-mixed micronutrients. Results: Results indicated that the application of Nano-NPK (4 ml/liter) significantly enhanced fruit set, weight, and overall yield, with nano-boron and nano-zinc further boosting fruit quality. The treatment combination F2M3 (Nano-NPK at 5 ml/liter with nano micronutrients at 6 ml/liter) yielded the highest productivity (93.94 t/ha) and was economically most viable, achieving a benefit-cost ratio of 6.42. Conclusion: The findings underscore the potential of nano-fertilizers to improve nutrient-use efficiency, supporting sustainable tomato production by optimizing yield and profitability.