Annual Research & Review in Biology

This investigation evaluated the effects of eight micronutrient treatments on the growth, yield and quality of cabbage (Brassica oleracea var. capitata) at the Agricultural Research Farm, Suresh Gyan Vihar University, Jaipur, Rajasthan, during the 2025–2026 rabi season. The experiment used a randomised block design with three replications. Treatments comprised an untreated control (T0), individual applications of boric acid at 0.01% (T1), ZnSO₄ at 0.01% (T2) and ammonium molybdate at 0.005% (T3), and their two- and three-component combinations (T4–T7). Treatment T7 (boric acid at 0.01% + ZnSO₄ at 0.01% + ammonium molybdate at 0.005%) recorded the greatest numerical plant height (26.67 cm), head diameter (9.78 cm), head weight (746.02 g), yield per plot (23.87 kg), reported head yield (313.15 q/ha), total soluble solids (7.21 °Brix) and leaf chlorophyll content (55.02 mg/100 g). It also recorded the fewest open leaves per plant (14.8), the shortest time to head initiation (54.09 days) and maturity (79.08 days), and the highest reported net return (₹234,496.7/ha) and benefit–cost ratio (1.66). Although T7 had the most favourable numerical values for these variables, several differences from other combined treatments were below the reported critical differences. These results describe treatment responses under the conditions of this single-site, single-season experiment; wider recommendations require further validation.