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Impacts of Organic and Inorganic Fertilizers on Nitrification in a Cold Climate Soil are Linked to the Bacterial Ammonia Oxidizer Community

文献类型： 外文期刊

作者： Fan, Fenliang 1 ; Yang, Qianbao 1 ; Li, Zhaojun 1 ; Wei, Dan 2 ; Cui, Xi'an 3 ; Liang, Yongchao 1 ;

作者机构： 1.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Minist Agr, Key Lab Crop Nutr & Fertilizat, Beijing 100081, Peoples R China

2.Heilongjiang Acad Agr Sci, Inst Soil & Fertilizer, Harbin 150086, Peoples R China

3.Heilongjiang Acad Agr Sci, Heihe Inst, Heihe 164300, Peoples R China

关键词： nitrogen: 7727-37-9;total carbon;mineral fertilizer: agrichemical;fertilizer;inorganic fertilizer: agrichemical;fertilizer;organic fertilizer: agrichemical;fertilizer;species abundance;pH factor;ammonia-oxidizing bacterial community;cold climate soil;potential nitrification rate

期刊名称：MICROBIAL ECOLOGY （ 影响因子：4.552； 五年影响因子：4.77 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： The microbiology underpinning soil nitrogen cycling in northeast China remains poorly understood. These agricultural systems are typified by widely contrasting temperature, ranging from -40 to 38A degrees C. In a long-term site in this region, the impacts of mineral and organic fertilizer amendments on potential nitrification rate (PNR) were determined. PNR was found to be suppressed by long-term mineral fertilizer treatment but enhanced by manure treatment. The abundance and structure of ammonia-oxidizing bacterial (AOB) and archaeal (AOA) communities were assessed using quantitative polymerase chain reaction and denaturing gradient gel electrophoresis techniques. The abundance of AOA was reduced by all fertilizer treatments, while the opposite response was measured for AOB, leading to a six- to 60-fold reduction in AOA/AOB ratio. The community structure of AOA exhibited little variation across fertilization treatments, whereas the structure of the AOB community was highly responsive. PNR was correlated with community structure of AOB rather than that of AOA. Variation in the community structure of AOB was linked to soil pH, total carbon, and nitrogen contents induced by different long-term fertilization regimes. The results suggest that manure amendment establishes conditions which select for an AOB community type which recovers mineral fertilizer-suppressed soil nitrification.

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[1]Fate of applied urea N-15 in a soil-maize system as affected by urease inhibitor and nitrification inhibitor. Zhang, L.,Wu, Z.,Jiang, Y.,Chen, L.,Song, Y.,Zhang, L.,Wang, L.,Xie, J.,Ma, X.. 2010

[2]Effect of long-term fertilization on the phosphorus content of black soil in Northeast China. Ma, Xingzhu,Wu, Zhijie,Chen, Lijun,Ma, Xingzhu,Zhou, Baoku,Gao, Zhongchao,Hao, Xiaoyu,Zhang, Junzheng.

[3]Contribution of Heterotrophic Nitrification to Nitrous Oxide Production in a Long-Term N-Fertilized Arable Black Soil. Cai, Yanjiang,Wang, Lianfeng,Cai, Yanjiang,Ding, Weixin,Yu, Hongyan,Wang, Lianfeng,Zhang, Xilin.

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