Composting faces challenges with nitrogen (N) losses through ammonia (NH3) and nitrous oxide (N2O) emissions. In this study, wood vinegar (WV) and biochar (BC) were applied individually or combined into wheat straw and chicken manure composting. Results showed that BC and WV reduced NH3 volatilizations by 22–23 % individually, but their combined application achieved a 59 % reduction. However, this combination increased N2O emissions by 174 %. The BC + WV treatment improved compost quality, evidenced by increased total N content by 22 % and enhanced the biological index, promoting additional dissolved organic matter production. Overall, BC and WV applications improved compost quality, reduced gaseous N losses, and supported the re-utilization of agricultural residues. The combined use of BC and WV significantly enhances compost quality and reduces NH3 emissions, offering a promising solution for sustainable agricultural residue management.

中文翻译：

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生物炭和木醋共同施用对堆肥氨和一氧化二氮损失及肥力的影响


堆肥面临氨 (NH3) 和一氧化二氮 (N2O) 排放造成氮 (N) 损失的挑战。在本研究中，木醋（WV）和生物炭（BC）单独或组合应用于麦秆和鸡粪堆肥。结果表明，BC 和 WV 单独使用可使 NH3 挥发量减少 22-23%，但组合使用可减少 59%。然而，这种组合使 N2O 排放量增加了 174%。 BC + WV 处理提高了堆肥质量，总氮含量增加了 22%，并提高了生物指数，促进了更多溶解有机物的产生。总体而言，BC和WV的应用提高了堆肥质量，减少了气态氮损失，并支持农业残留物的再利用。 BC 和 WV 的结合使用可显着提高堆肥质量并减少 NH3 排放，为可持续农业残留物管理提供了一种有前景的解决方案。