Effects of 3,4-dimethylpyrazole phosphate (DMPP) on the abundance of ammonia oxidizers and denitrifiers in two different intensive vegetable cultivation soils
文献类型：期刊论文
| 作者 | Li, Yan3; Lindsey, Stuart2; Li, Jie1; Shi, Yuanliang1; Luo, Jiafa2; Wang, Lingli1 |
| 刊名 | JOURNAL OF SOILS AND SEDIMENTS
 |
| 出版日期 | 2019-03-01 |
| 卷号 | 19期号:3页码:1250-1259 |
| 关键词 | AOA AOB DMPP nirK nirS Vegetable cultivation soil |
| ISSN号 | 1439-0108 |
| DOI | 10.1007/s11368-018-2155-4 |
| 英文摘要 | PurposeNitrification and denitrification in the N cycle are affected by various ammonia oxidizers and denitrifying microbes in intensive vegetable cultivation soils, but our current understanding of the effect these microbes have on N2O emissions is limited. The nitrification inhibitor, 3,4-dimethylpyrazole phosphate (DMPP), acts by slowing nitrification and is used to improve fertilizer use efficiency and reduce N losses from agricultural systems; however, its effects on nitrifier and denitrifier activities in intensive vegetable cultivation soils are unknown.Materials and methodsIn this study, we measured the impacts of DMPP on N2O emissions, ammonia oxidizers, and denitrifying microbes in two intensive vegetable cultivation soils: one that had been cultivated for a short term (1year) and one that had been cultivated over a longer term (29years). The quantitative PCR technique was used in this study. Three treatments, including control (no fertilizer), urea alone, and urea with DMPP, were included for each soil. The application rates of urea and DMPP were 1800kgha(-1) and 0.5% of the urea-N application rate.Results and discussionThe application of N significantly increased N2O emissions in both soils. The abundance of ammonia-oxidizing bacteria (AOB) increased significantly with high rate of N fertilizer application in both soils. Conversely, there was no change in the growth rate of ammonia-oxidizing archaea (AOA) in response to the applied urea despite the presence of larger numbers of AOA in these soils. This suggests AOB may play a greater role than AOA in the nitrification process, and N2O emission in intensive vegetable cultivation soils. The application of DMPP significantly reduced soil NO3--N content and N2O emission, and delayed ammonia oxidation. It greatly reduced AOB abundance, but not AOA abundance. Moreover, the presence of DMPP was correlated with a significant decrease in the abundance of nitrite reductase (nirS and nirK) genes.ConclusionsLong-term intensive vegetable cultivation with heavy N fertilization altered AOB and nirS abundance. In vegetable cultivation soils with high N levels, DMPP can be effective in mitigating N2O emissions by directly inhibiting both ammonia oxidizing and denitrifying microbes. |
| 资助项目 | National Key Research and Development Program of China[2017YFD0200708] ; National Key Research and Development Program of China[2018YFD0200200] ; National Key Research and Development Program of China[2017YFD0200100] ; National Key Research and Development Program of China[2016YFD0200307] ; National Key Research and Development Program of China[2017YFD0800604] ; National Natural Science Foundation of China[41807107] ; Liaoning province doctoral research start-up fund[20170520106] ; Shenyang science and technology project[17-156-6-00] |
| WOS研究方向 | Environmental Sciences & Ecology ; Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:000459805400019 |
| 出版者 | SPRINGER HEIDELBERG |
| 源URL | [http://210.72.129.5/handle/321005/123959]  |
| 专题 | 中国科学院沈阳应用生态研究所 |
| 通讯作者 | Luo, Jiafa |
| 作者单位 | 1.Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Liaoning, Peoples R China 2.AgResearch, Ruakura Res Ctr, Hamilton 3123, New Zealand 3.Shandong Acad Agr Sci, Jinan, Shandong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Yan,Lindsey, Stuart,Li, Jie,et al. Effects of 3,4-dimethylpyrazole phosphate (DMPP) on the abundance of ammonia oxidizers and denitrifiers in two different intensive vegetable cultivation soils[J]. JOURNAL OF SOILS AND SEDIMENTS,2019,19(3):1250-1259. |
| APA | Li, Yan,Lindsey, Stuart,Li, Jie,Shi, Yuanliang,Luo, Jiafa,&Wang, Lingli.(2019).Effects of 3,4-dimethylpyrazole phosphate (DMPP) on the abundance of ammonia oxidizers and denitrifiers in two different intensive vegetable cultivation soils.JOURNAL OF SOILS AND SEDIMENTS,19(3),1250-1259. |
| MLA | Li, Yan,et al."Effects of 3,4-dimethylpyrazole phosphate (DMPP) on the abundance of ammonia oxidizers and denitrifiers in two different intensive vegetable cultivation soils".JOURNAL OF SOILS AND SEDIMENTS 19.3(2019):1250-1259. |
入库方式： OAI收割
来源：沈阳应用生态研究所
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