Efficiency and mechanism of reducing ammonia volatilization in alkaline farmland soil using Bacillus amyloliquefaciens biofertilizer

doi:10.1016/j.envres.2021.111672

CORC > 兰州理工大学 > 兰州理工大学 > 土木工程学院

	Efficiency and mechanism of reducing ammonia volatilization in alkaline farmland soil using Bacillus amyloliquefaciens biofertilizer
	Xue, Lixia 1,2,4; Sun, Bo 1,3; Yang, Yahong 2; Jin, Bo 5; Zhuang, Guoqiang 1,3; Bai, Zhihui 1,3; Zhuang, Xuliang 1,3
刊名	ENVIRONMENTAL RESEARCH
	2021-11
卷号	202
关键词	Bacillus amyloliquefaciens Biofertilizer Ammonia volatilization Nitrogen cycle functional genes Microbial community
ISSN号	0013-9351
DOI	10.1016/j.envres.2021.111672
英文摘要	Ammonia volatilization from the farmland caused by the application of synthetic nitrogen fertilizer is the most important source of anthropogenic ammonia emissions. Biofertilizer application has been considered as an alternative option for agriculture sustainability and soil improvement. In this study, field trials were carried out to investigate the efficiency of Bacillus amyloliquefaciens (BA) biofertilizer on alleviating ammonia volatilization in alkaline farmland soil and increasing crop yield and nitrogen utilization. Potential response mechanisms were investigated from soil enzyme, nitrogen cycle function genes and microbial community levels. Compared with conventional fertilization, BA biofertilizer application reduced the ammonia volatilization by 68%, increased the crop yield and nitrogen recovery by 19% and 19%, respectively. Soil enzyme activity analysis showed that BA biofertilizer inhibited the urease activity and enhanced the potential ammonia oxidation (PAO). In addition, BA biofertilizer application also increased the bacterial amoA gene abundance, while decreased the ureC gene abundance. BA biofertilizer also significantly altered the community structure and composition, and especially raised the abundance of ammonia oxidation bacteria (AOB), while no changes were observed in abundance of nitrite oxidation bacteria (NOB). Briefly, BA biofertilizer was approved to reduce the transformation of fertilizer nitrogen to NH4+-N, simultaneously accelerating NH4+-N into the nitrification process, thus decreasing the NH4+-N content remained in alkaline soil and consequently alleviating the ammonia volatilization. Thus, these results suggested that the application of BA biofertilizer is a feasible strategy to improve crop yields and reduce agricultural ammonia emissions.
WOS研究方向	Environmental Sciences & Ecology ; Public, Environmental & Occupational Health
语种	英语
出版者	ACADEMIC PRESS INC ELSEVIER SCIENCE
WOS记录号	WOS:000704954400003
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/149987]
专题	土木工程学院
作者单位	1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China; 2.Lanzhou Univ Technol, Sch Civil Engn, Lanzhou 730050, Peoples R China; 3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China; 4.Gansu Engn Design Res Inst Co Ltd, Lanzhou 730030, Peoples R China; 5.Univ Adelaide, Sch Chem Engn & Adv Mat, Adelaide, SA 5005, Australia
推荐引用方式 GB/T 7714	Xue, Lixia,Sun, Bo,Yang, Yahong,et al. Efficiency and mechanism of reducing ammonia volatilization in alkaline farmland soil using Bacillus amyloliquefaciens biofertilizer[J]. ENVIRONMENTAL RESEARCH,2021,202.
APA	Xue, Lixia.,Sun, Bo.,Yang, Yahong.,Jin, Bo.,Zhuang, Guoqiang.,...&Zhuang, Xuliang.(2021).Efficiency and mechanism of reducing ammonia volatilization in alkaline farmland soil using Bacillus amyloliquefaciens biofertilizer.ENVIRONMENTAL RESEARCH,202.
MLA	Xue, Lixia,et al."Efficiency and mechanism of reducing ammonia volatilization in alkaline farmland soil using Bacillus amyloliquefaciens biofertilizer".ENVIRONMENTAL RESEARCH 202(2021).