#aez

A field experiment was conducted in Shampur, Rajshahi, Bangladesh, to assess the effects of different micronutrient treatments on cabbage (cv. Atlas 70) under calcareous soil conditions (AEZ 11: High Ganges River Floodplain). The medium-fertile silty loam soil had a pH of 7.6. The experiment followed a Randomized Complete Block Design (RCBD) with three replications, using eleven micronutrient treatments: T1 (control), T2 (Zn), T3 (B), T4 (Zn+B), T5 (Zn+B+Mo), T6 (Zn+B+Mn), T7 (Zn+B+Cu), T8 (Zn+B+Cl), T9 (Zn+B+Mo+Mn), T10 (Zn+B+Mo+Mn+Cu), and T11 (Zn+B+Mo+Mn+Cu+Cl). Micronutrient doses (kg/ha) were Zn-B-Mo-Mn-Cu-Cl = 3-3-0.5-4-1-20, with N-P-K-S at 150-100-50-20 kg/ha as the basal dose. Data collected at 30, 45, and 60 days post-transplant showed significant effects of micronutrients on growth and yield. The highest plant height (34.89 cm), leaves per plant (21.56), and largest leaf length (36.12 cm) were in T9 (Zn+B+Mo+Mn), while T7 (Zn+B+Cu) had the highest plant spread (66.07 cm) and leaf breadth (24.52 cm). The longest stem (7.04 cm) was in T6 (Zn+B+Mn). Except for days to head formation (54.75 in T2), T4 (Zn+B) showed the highest fresh plant weight (1880 g), head diameter (19.50 cm), marketable head weight (1305 g), and yield (48.33 t/ha), which was 61.89% higher than the control (29.81 t/ha).