Biochar can Increase Chinese Cabbage (Brassica oleracea L.) Yield, Decrease Nitrogen and Phosphorus Leaching Losses in Intensive Vegetable Soil

There are few evidences on the effect of biochar vegetable yield, nitrogen (N) and phosphorus (P) leaching losses under intensive production soil. The current field plot scale study evaluated responses Chinese cabbage (Brassica oleracea L.) N P using five treatments common application rate according to local farmers’ practice (N100%), reducing 20% or 40% fertilizer (N80% N60%), but incorporating 10 20 t/ha (N60% + BC10 N60% BC20). Results showed that N80% decreased both economic leaf yields by 6.8%–36.3% 27.4%–37.7%, respectively. Incorporation with reduced rates improved in particular BC20 matched yield observed N100% treatment. Enhanced uptake capacities shoot probably contributed higher amendment schemes. Biochar mitigated NH4+-N total 20%–30% 29%–32%, respectively, compared their counterpart treatment N60%. Nevertheless, exerted no influence NO3–-N leaching. In addition, soil organic matter content was recorded 7.4%–28.7% following 10–20 application. conclusion, can increase via increasing use efficiency, decrease losses, improve quality an system.