Evaluation of the effectiveness of N process inhibitors in paddy rice via a N-15 tracing approach
文献类型：期刊论文
| 作者 | Liu, Siyi; Chi, Qiaodong; Shan, Jun; Zhu, Bo; Zhang, Xifeng; Cheng, Yi; Cai, Zucong; Zhang, Jinbo; Yan, Xiaoyuan; Mueller, Christoph |
| 刊名 | SOIL BIOLOGY & BIOCHEMISTRY
 |
| 出版日期 | 2020-08 |
| 卷号 | 147页码:1-11 |
| 关键词 | Fertilizer N use Efficiency Gross N transformations Nitrification inhibitor Rice Urease inhibitor Yield |
| ISSN号 | 0038-0717 |
| 英文摘要 | Nitrogen (N) stabilizers, e.g. nitrification inhibitor (NIs), urease inhibitor (UIs), or combined NIs and UIs (NUIs) have been recommended to reduce N losses, and improve fertilizer N use efficiency (NUE) and crop yield. However, the effectiveness of N stabilizers on rice yield and NUE varies greatly and the underlying mechanisms are not well understood. We performed a series of N-15 tracing experiments in the laboratory and in the field of two paddy soils with contrasting pH (pH 5.18 and 7.83) to evaluate the effects of N stabilizers on gross rates of soil N transformations, rice yield, NUE and N loss. Results showed that in acidic soil the NI and NUI did not significantly affect the NH4+ residence time and the potential risk of N loss (gross nitrification rate (O-NH4) + NH3 volatilization (V-NH3), O-NH4 + V-NH3). However, the NI significantly inhibited O-NH4 reducing the combined ammoniacal N loss (O-NH4 and V-NH3) by 19.7% and prolonging the NH4+ residence time in alkaline soil. Similarly, NUI also reduced O-NH4 + V-NH3 by 15.8%, thus, increasing the residence time of ammoniacal N in alkaline soil. The results of the field trial showed that application of NI and NUI can improve rice yield and NUE by extending a residence time of NH4+ in alkaline soil, but not in acidic soil. This study provided information under which conditions NIs and/or NUIs can be recommended to enhance rice production while reducing environmental impacts. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/44679]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Liu, Siyi,Chi, Qiaodong,Shan, Jun,et al. Evaluation of the effectiveness of N process inhibitors in paddy rice via a N-15 tracing approach[J]. SOIL BIOLOGY & BIOCHEMISTRY,2020,147:1-11. |
| APA | Liu, Siyi.,Chi, Qiaodong.,Shan, Jun.,Zhu, Bo.,Zhang, Xifeng.,...&Mueller, Christoph.(2020).Evaluation of the effectiveness of N process inhibitors in paddy rice via a N-15 tracing approach.SOIL BIOLOGY & BIOCHEMISTRY,147,1-11. |
| MLA | Liu, Siyi,et al."Evaluation of the effectiveness of N process inhibitors in paddy rice via a N-15 tracing approach".SOIL BIOLOGY & BIOCHEMISTRY 147(2020):1-11. |
入库方式： OAI收割
来源：生态环境研究中心
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