Nanobiochar Application in Combination with Mulching Improves Metabolites and Curd Quality Traits in Cauliflower

Sustainable nutrient management approaches could improve production and quality without affecting soil health. We conducted a field experiment to investigate the interactive effects of mulching (no mulch, plastic straw mulch) nanobiochar (NBC) foliar application on biomass, contents, metabolites in leaf curd cauliflower (Brassica oleracea var. botrytis). After 20 days transplantation, NBC (0.1% w/v) was applied as spray for four consecutive weeks (one per week). At initiation stage, changes chlorophyll, carotenoids, metabolite concentrations leaves were determined. The significantly enhanced weight improved morphology. Yield traits including weight, diameter, basal stalk length increased by 30, 13, 16, 20% compared control. Plastic also aboveground biomass 32% when no mulching. Moreover, prominently root dry rough solidity index, total soluble sugar curd, calcium potassium cauliflower. Overall, this study revealed potential promoting nutritional properties