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Improved composting of poultry feces via supplementation with ammonia oxidizing archaea

文献类型: 外文期刊

作者: Xie, Kaizhi 1 ; Jia, Xiaoshan 2 ; Xu, Peizhi 1 ; Huang, Xu 1 ; Gu, Wenjie 1 ; Zhang, Fabao 1 ; Yang, Shaohai 1 ; Tang, Sh 1 ;

作者机构: 1.Guangdong Acad Agr Sci, Soil & Fertilizer Inst, Guangzhou 510640, Guangdong, Peoples R China

2.Sun Yat Sen Univ, Sch Environm Sci & Engn, Dept Environm Sci, Guangzhou 510275, Guangdong, Peoples R China

关键词: Aerobic composting;Ammonia oxidizing archaea;Nitrogen transformation;PCR-DGGE;Redundancy analysis

期刊名称:BIORESOURCE TECHNOLOGY ( 影响因子:9.642; 五年影响因子:9.237 )

ISSN:

年卷期:

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收录情况: SCI

摘要: Ammonia-oxidizing archaea (AOA) play an important role in the oxidation of ammonia. However, the participation of AOA in the composting process has not been established. The addition of AOA to a compost mix was able to speed up both the onset of the hyperthermic phase and the composting time. The composition of the microflora and the relative abundance were determined by using denaturing gradient gel electrophoresis and quantitative real-time PCR, based on the presence of the archaeal amoA genes. The amplicon profiles allowed some of the major AOA species present in the final compost to be identified, and their relative abundance to be estimated from their amplification intensity. The lower pH during the lower temperature phase of compost served to enhance the nitrogen content of the final compost. The addition of AOA resulted in the expanding diversity of microflora species than that of the natural colonization.

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