干旱区生态环境知识资源中心(Arid): Effects of Nitrogen Fertilizer on Nitrospira- and Nitrobacter-like Nitrite-Oxidizing Bacterial Microbial Communities under Mulched Fertigation System in Semi-Arid Area of Northeast China

Arid

DOI	10.3390/agronomy13122909
	Effects of Nitrogen Fertilizer on Nitrospira- and Nitrobacter-like Nitrite-Oxidizing Bacterial Microbial Communities under Mulched Fertigation System in Semi-Arid Area of Northeast China
	Yuan, Yuhan; Wang, Meng; Feng, Xuewan; Li, Qian; Qin, Yubo; Sun, Bo; Li, Cuilan; Zhang, Jinjing; Liu, Hang
通讯作者	Liu, H
来源期刊	AGRONOMY-BASEL
EISSN	2073-4395
出版年	2023
卷号	13 期号:12
英文摘要	The accumulation of nitrite is frequently overlooked, despite the fact that nitrification is the most essential phase of the entire nitrogen (N) cycle and that nitrifying bacteria play a significant role in nitrification. At present, the effects of different N application rates on soil nitrite-oxidizing bacteria (NOB) abundance, community composition, diversity, and its main influencing factors are still unclear. In this study, five N fertilizer application rates under film mulching and a drip irrigation system were studied in the semi-arid area of Northeast China. The treatments were 0 kg ha(-1) (N0), 90 kg ha(-1) (N1), 150 kg ha(-1) (N2), 210 kg ha(-1) (N3), and 270 kg ha(-1) (N4). Fluorescent quantitative PCR and Illumina Miseq sequencing were used to analyze the abundance and community structure of NOB under different amounts of N application. The results showed that the increase in amounts of N application was strongly accompanied by an increase in the content of soil organic matter (SOM), total nitrogen (TN), nitrate nitrogen (NO3--N), and ammonium nitrogen (NH4+-N), while the pH significantly reduced with an increase in N fertilization. N fertilization significantly increased soil nitrite oxidoreductase (NXR) activity, soil nitrification potential (PNR), and soil nitrite oxidation potential (PNO). A high N application rate significantly heightened the abundance of Nitrospira- and Nitrobacter-like NOB. N fertilizer considerably raised the Shannon index of Nitrospira-like NOB. The N application amount was the key factor affecting the community structure of Nitrospira-like NOB, and available nitrogen (AN) had the dominant influence on the community structure of Nitrospira-like NOB. N fertilizer can cause soil acidification, which affects NOB abundance and diversity. Nitrospira-like NOB may promote nitrite oxidation in different N application rates under a mulched fertigation system. The findings offered a crucial scientific foundation for further investigation into how nitrite-oxidizing bacteria respond to N fertilizer management strategies in farmland soil under film mulching drip irrigation in Northeast China.
英文关键词	N fertilizer application rate nitrite-oxidizing bacteria (NOB) Nitrospira-like NOB Nitrobacter-like NOB nitrite oxidoreductase nitrite oxidation potential (PNO)
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:001132691800001
WOS关键词	LONG-TERM FERTILIZATION ; SOIL ORGANIC-MATTER ; AMMONIA OXIDIZERS ; DIVERSITY ; NITRIFICATION ; ABUNDANCE ; CARBON ; ACID ; MICROORGANISMS ; MANAGEMENT
WOS类目	Agronomy ; Plant Sciences
WOS研究方向	Agriculture ; Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/395259
推荐引用方式 GB/T 7714	Yuan, Yuhan,Wang, Meng,Feng, Xuewan,et al. Effects of Nitrogen Fertilizer on Nitrospira- and Nitrobacter-like Nitrite-Oxidizing Bacterial Microbial Communities under Mulched Fertigation System in Semi-Arid Area of Northeast China[J],2023,13(12).
APA	Yuan, Yuhan.,Wang, Meng.,Feng, Xuewan.,Li, Qian.,Qin, Yubo.,...&Liu, Hang.(2023).Effects of Nitrogen Fertilizer on Nitrospira- and Nitrobacter-like Nitrite-Oxidizing Bacterial Microbial Communities under Mulched Fertigation System in Semi-Arid Area of Northeast China.AGRONOMY-BASEL,13(12).
MLA	Yuan, Yuhan,et al."Effects of Nitrogen Fertilizer on Nitrospira- and Nitrobacter-like Nitrite-Oxidizing Bacterial Microbial Communities under Mulched Fertigation System in Semi-Arid Area of Northeast China".AGRONOMY-BASEL 13.12(2023).