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首页> 外文期刊>Bioresource Technology: Biomass, Bioenergy, Biowastes, Conversion Technologies, Biotransformations, Production Technologies >Influence of FeONPs amendment on nitrogen conservation and microbial community succession during composting of agricultural waste: Relative contributions of ammonia-oxidizing bacteria and archaea to nitrogen conservation
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Influence of FeONPs amendment on nitrogen conservation and microbial community succession during composting of agricultural waste: Relative contributions of ammonia-oxidizing bacteria and archaea to nitrogen conservation

机译：FEONPS修正对农业废弃物堆肥期间氮胁迫和微生物群落连续的影响：氨氧化细菌和古代氮胁迫的相对贡献

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摘要

Composting amended with iron oxide nanoparticles (FeONPs, alpha-Fe2O3 and Fe3O4 NPs) were conducted to study the impacts of FeONPs on nitrogen conservation and microbial community. It was found that amendment of FeONPs, especially alpha-Fe2O3 NPs, reduced total nitrogen (TN) loss, and reserved more NH4+-N and mineral N. Pearson correlation analysis revealed that decrease of ammonia-oxidizing bacteria (AOB) in FeONPs treatments played more important role than ammonia-oxidizing archaea (AOA) in reserving more NH4+-N and mineral N, and reducing TN loss. Bacterial community composition at phylum level did not shift with addition of FeONPs. Firmicutes, Actinobacteria, and Proteobacteria were the three most dominant phyla in all treatments. Overall, this study provides a method to reduce TN loss and improve mineral N reservation during composting, and gives a deep insight into the role of AOB and AOA in nitrogen transformation.
机译：进行堆肥用氧化铁纳米粒子（FeONP，α-Fe2O3和Fe3O4 NPS）进行修复，以研究FeONP对氮胁迫和微生物群落的影响。 发现FEONPS，特别是α-FE2O3 NPS，减少总氮（TN）损失，并保留更多NH4 + -N和矿物质N. Pearson相关分析显示，在FEONP治疗中氨氧化细菌（AOB）降低 比氨 - 氧化古亚茶（AOA）更重要的作用，保留更多NH4 + -N和矿物N，并降低TN损失。 场群细菌群落组合物在Phylum水平没有添加FeOnps。 迫切性，肌动菌和植物体外均为所有治疗中的三个最占优势的植物。 总体而言，该研究提供了一种减少TN损失和改善堆肥的矿物质保留的方法，并深入了解AOB和AOA在氮转化中的作用。

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