Biochar–manure changes soil carbon mineralization in a Gray Luvisol used for agricultural production

Biochar is a source of stable organic matter being explored as manure additive. A 64 d incubation experiment was conducted to quantify the short-term effect (RM), biochar–manure (BM), raw biochar (BC), RM + BC, and BM BC amendment on soil carbon (C) nitrogen (N) mineralization. Manure increased CO 2 -C emission rates, with highest cumulative emissions observed for BC. Treatments halted C mineralization, indicating manure-C stabilization. By contrast, neither nor affected N Applying might benefit sequestration by lowering over long term.