Responses of biotic and abiotic effects on conservation and supply of fertilizer N to inhibitors and glucose inputs
文献类型：期刊论文
| 作者 | Yu, Wantai2; Ma, Qiang1,2; Wu, Zhijie2; Shen, Shanmin2; Zhou, Hua2; Jiang, Chunming1,2; Xu, Yonggang2; Liu, Rui2 |
| 刊名 | SOIL BIOLOGY & BIOCHEMISTRY
 |
| 出版日期 | 2015-10-01 |
| 卷号 | 89页码:72-81 |
| 关键词 | Organic Carbon Microbial Immobilization Fixed Ammonium Nitrification Inhibitor Urease Inhibitor Added Nitrogen Interaction |
| ISSN号 | 0038-0717 |
| DOI | 10.1016/j.soilbio.2015.06.024 |
| 英文摘要 | Fertilizer N can be conserved through immobilization by microorganisms (biotic process) and fixation by soil clay minerals (abiotic process), and then subsequently remineralized and released. These processes are significantly affected by inhibitors, and available C application. In this study, a 96-day incubation experiment was conducted to assess the effects of microbial immobilization and ammonium fixation on conservation and supply of urea-N with the nitrification inhibitor (DMPP: 3,4-dimethylpyrazole phosphate), urease inhibitor (NBPT: N-(n-butyl) thiophosphoric triamide), and glucose additions. The results showed that urea-derived soil microbial biomass nitrogen (5MBN) consistently increased with DMPP input, whereas NBPT increased urea-derived SMBN in the absence of glucose but decreased it in the presence of glucose. Both inhibitors enhanced the effects of fixed NH4+ on conservation and supply of urea-N in all cases, and retarded the release of fixed NH4+. Glucose addition intensified the competition for NH4+ between microbial immobilization and mineral fixation, as well as reduced the availability of urea-N and native soil N, resulting in a negative added N interaction at the initial incubation stage. From 12 to 96 days, the release of fixed NH4+ was 2.6-fold greater than the mineralization of organic N (including SMBN and non-microbial organic N) in the non-glucose treatments, whereas the latter was 2.7-fold greater than the former in the glucose treatments. Taken together, our study indicates both microbial immobilization and mineral fixation are important processes by which N is stabilized in soil. Clarification of fertilizer N transformation induced by these biotic and abiotic processes can provide helpful implications for quantifying N cycle and optimizing agricultural nutrient management. (C) 2015 Elsevier Ltd. All rights reserved. |
| WOS研究方向 | Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:000361159800008 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://210.72.129.5/handle/321005/122185]  |
| 专题 | 中国科学院沈阳应用生态研究所 |
| 通讯作者 | Ma, Qiang |
| 作者单位 | 1.Chinese Acad Sci, Inst Appl Ecol, State Key Lab Forest & Soil Ecol, Shenyang 110164, Peoples R China 2.Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu, Wantai,Ma, Qiang,Wu, Zhijie,et al. Responses of biotic and abiotic effects on conservation and supply of fertilizer N to inhibitors and glucose inputs[J]. SOIL BIOLOGY & BIOCHEMISTRY,2015,89:72-81. |
| APA | Yu, Wantai.,Ma, Qiang.,Wu, Zhijie.,Shen, Shanmin.,Zhou, Hua.,...&Liu, Rui.(2015).Responses of biotic and abiotic effects on conservation and supply of fertilizer N to inhibitors and glucose inputs.SOIL BIOLOGY & BIOCHEMISTRY,89,72-81. |
| MLA | Yu, Wantai,et al."Responses of biotic and abiotic effects on conservation and supply of fertilizer N to inhibitors and glucose inputs".SOIL BIOLOGY & BIOCHEMISTRY 89(2015):72-81. |
入库方式： OAI收割
来源：沈阳应用生态研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。