Modified carbon-based additive can achieve mitigation of ammonia and sulfuretted hydrogen emissions simultaneously in composting

Therefore, this study aims to investigate the effects of different C-based additives on the physicochemical properties and N/S compound dynamics during tomato straw composting. The specific objectives were as follows: to evaluate the efficacy of C-based additives in mitigating the emissions of NH3 and H2S;explore the dynamic responses of functional genes related to the cycling of N and S to the additives; and identify the primary factors that influence the emissions of NH3 and H2S and elucidate the mechanisms by which these additives achieve a reduction in emissions. This research will provide critical insights into optimizing strategies to mitigate the odor of aerobically composted tomato straw.