Bacillus subtilis biofertilizer mitigating agricultural ammonia emission and shifting soil nitrogen cycling microbiomes

doi:10.1016/j.envint.2020.105989

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	Bacillus subtilis biofertilizer mitigating agricultural ammonia emission and shifting soil nitrogen cycling microbiomes
	Sun, Bo 2,3; Bai, Zhihui 2,3; Bao, Lijun 2,3; Xue, Lixia 4; Zhang, Shiwei 2; Wei, Yingxue 1; Zhang, Zhanying 5; Zhuang, Guoqiang 2,3; Zhuang, Xuliang 2,3
刊名	Environment International
	2020-11-01
卷号	144
关键词	Agricultural robots Agriculture Ammonia Bacteria Bacteriology Genes Nitrification Soils Sustainable development Ammonia oxidizing bacteria Effective approaches Environmental disturbances Fertilizer applications Global environment Nitrification process Nitrogen deposition Organic fertilizers
ISSN号	01604120
DOI	10.1016/j.envint.2020.105989
英文摘要	Excessive ammonia (NH3) emitted from nitrogen fertilizer application in farmland have caused serious disturbance to global environment, including reduction of visibility, formation of regional haze, and increase of nitrogen deposition. Application of biofertilizer has been considered as an effective approach for soil improvement and agriculture sustainability. In this study, a field experiment was conducted to evaluate the potential of B. subtilis biofertilizer on mitigating NH3 volatilization and to investigate the underlying mechanisms. Compared with organic fertilizer, the incorporation of B. subtilis biofertilizer reduced NH3 volatilization by up to 44%. Moreover, the application of B. subtilis biofertilizer reduced the abundance of ureC gene, and increased the abundance of functional genes (bacterial amoA and comammox amoA) and ammonia-oxidizing bacteria (AOB). This indicated that the conversion of fertilizer nitrogen to NH4+-N was decreased and the nitrification process was increased. In brief, the application of B. subtilis biofertilizer reduced the "source" and increased the "sink" of NH4+-N, thus reducing the retention of NH4+-N in alkaline soil, and mitigating NH3 volatilization. These results indicated that B. subtilis biofertilizer is an effective control strategy for agricultural NH3 emission, maintaining high crop yield and mitigating environmental disturbance. © 2020 The Authors
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	Elsevier Ltd
WOS记录号	WOS:000580630100007
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/115748]
专题	兰州理工大学土木工程学院
作者单位	1.College of Environmental Science and Engineering, Hebei University of Science and Technology, Hebei; 050018, China; 2.Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing; 100085, China; 3.College of Resources and Environment, University of Chinese Academy of Sciences, Beijing; 100049, China; 4.School of Civil Engineering, Lanzhou University of Technology, Lanzhou; 730050, China; 5.Centre for Agriculture and the Bioeconomy, Institute for Future Environments, Queensland University of Technology, Brisbane; Queensland; 4000, Australia
推荐引用方式 GB/T 7714	Sun, Bo,Bai, Zhihui,Bao, Lijun,et al. Bacillus subtilis biofertilizer mitigating agricultural ammonia emission and shifting soil nitrogen cycling microbiomes[J]. Environment International,2020,144.
APA	Sun, Bo.,Bai, Zhihui.,Bao, Lijun.,Xue, Lixia.,Zhang, Shiwei.,...&Zhuang, Xuliang.(2020).Bacillus subtilis biofertilizer mitigating agricultural ammonia emission and shifting soil nitrogen cycling microbiomes.Environment International,144.
MLA	Sun, Bo,et al."Bacillus subtilis biofertilizer mitigating agricultural ammonia emission and shifting soil nitrogen cycling microbiomes".Environment International 144(2020).