Response of different organic nutrient management schedules on productivity, head quality, nutrient uptake and economics of organic cabbage

Field experiments were conducted to explore the possibility of improving the productivity of organic cabbage by evaluating the response of different organic nutrient schedules comprising of enriched farmyard manure, vermicompost and poultry manure as basal and top-dressing during winter season of 2017–18 and 2018–19 at UBKV, Pundibari, West Bengal. The experiment consisted of 8 treatment combinations and laid out in randomized block design with three replications. The results revealed that the use of Azophos biofertilizer enriched poultry manure (5t/ha) as basal along with 2-times top dressing (1 t/ha) at 30 and 45 days after transplanting significantly increased the head yield (1.64 kg/plant and 42.76 t/ha) along with superior head quality in terms of maximum vitamin A (126.01 IU/100 g), vitamin C (44.02 mg/100 g) and TSS (6.50 ^oBrix) of organic cabbage. The treatment combination comprised of Azophos biofertilizer enriched vermicompost (2.5 t/ha) and enriched poultry manure (2.5 t/ha) as basal along with 2 times top dressing of both (0.5 t/ha) at 30 and 45 days after transplanting proved to be the second-best option for organic cabbage cultivation of the region.