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

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 中国科学院环境生物技术重点实验室

	Bacillus subtilis biofertilizer mitigating agricultural ammonia emission and shifting soil nitrogen cycling microbiomes
	Sun, Bo; Bai, Zhihui; Bao, Lijun; Xue, Lixia; Zhang, Shiwei; Wei, Yingxue; Zhang, Zhanying; Zhuang, Guoqiang; Zhuang, Xuliang
刊名	ENVIRONMENT INTERNATIONAL
	2020-11
卷号	144 页码:1-11
关键词	Ammonia volatilization Bacillus subtilis Biofertilizer Soil enzyme Functional gene Bacterial community
ISSN号	0160-4120
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.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/45137]
专题	生态环境研究中心_中国科学院环境生物技术重点实验室
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,2020,144:1-11.
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,144,1-11.
MLA	Sun, Bo,et al."Bacillus subtilis biofertilizer mitigating agricultural ammonia emission and shifting soil nitrogen cycling microbiomes".ENVIRONMENT INTERNATIONAL 144(2020):1-11.