The present study was conducted to evaluate the impact of foliar applications of micronutrients—Zinc (Zn), Iron (Fe), and Boron (B)—on the growth, yield, and quality of capsicum (
Capsicum annuum L.) under naturally ventilated polyhouse conditions during Rabi 2024
-25 at Chandra Shekhar Azad University of Agriculture and Technology, Kanpur.
The experiment consisted of 8 treatment combinations in a randomized block design with 3 replications. Among all treatments, the combined foliar spray of Zn + Fe + B (T7) significantly improved plant height (103.45cm),number of branching (9.45), internodal length, stem girth, day of 50% flowering, number of flowers, day to 1st fruit set, fruit set%, number of fruits /plant, fruit length, fruit diameter, fruit weight, fruit weight /plot, yield (101.64 q/1000 m²), pericarp thickness (8.79 mm),moisture content, highest dry matter content, TSS (7.53 °Brix), shelf life (9.75 days), and B:C ratio (2.32). The findings suggest that foliar applications of a micronutrient mixture are an effective strategy to enhance productivity and profitability in protected capsicum cultivation.
