Ammonia volatilization losses and N-15 balance from urea applied to rice on a paddy soil
文献类型：期刊论文
| 作者 | Fan, XH; Song, YS; Lin, DX; Yang, LZ; Luo, JF |
| 刊名 | JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA
 |
| 出版日期 | 2006 |
| 卷号 | 18期号:2页码:299-303 |
| 关键词 | ammonia volatilization urea N-15 balance rice influence factors Taihu region |
| ISSN号 | 1001-0742 |
| 通讯作者 | Fan, XH(xhfan@issas.ac.cn) |
| 英文摘要 | Ammonia volatilization loss and N-15 balance were studied in a rice field at three different stages after urea application in Taihu Lake area with a micrometeorological technique. Factors such as climate and the NW-N concentration in the field floodwater affecting ammonia loss were also investigated. Results show that the ammonia loss by volatilization accounted for 18.6%-38.7% of urea applied at different stages, the greatest loss took place when urea was applied at the tillering stage, the smallest at the ear bearing stage, and the intermediate loss at the basal stage. The greatest loss took place within 7 d following the fertilizer application. Ammonia volatilization losses at three fertilization stages were significantly correlated with the ammonium concentration in the field floodwater after the fertilizer was applied. N-15 balance experiment indicated that the use efficiency of urea by rice plants ranged between 24.4% and 28.1%. At the early stage of rice growth, the fertilizer nitrogen use efficiency was rather low, only about 12%. The total amount of nitrogen lost from different fertilization stages in the rice field was 44.1%-54.4%, and the ammonia volatilization loss was 25.4%-33.3%. Reducing ammonia loss is an important treatment for improving N-15 use efficiency. |
| 收录类别 | SCI |
| WOS关键词 | EMISSION ; FIELDS |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS类目 | Environmental Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000236120700018 |
| 出版者 | SCIENCE PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558571 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Fan, XH |
| 作者单位 | 1.Chinese Acad Sci, Inst Soil Sci, Nanjing 210008, Peoples R China 2.AgRes, Ruakura Agr Res Ctr, Land & Environm Management Grp, Hamilton, New Zealand |
| 推荐引用方式 GB/T 7714 | Fan, XH,Song, YS,Lin, DX,et al. Ammonia volatilization losses and N-15 balance from urea applied to rice on a paddy soil[J]. JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,2006,18(2):299-303. |
| APA | Fan, XH,Song, YS,Lin, DX,Yang, LZ,&Luo, JF.(2006).Ammonia volatilization losses and N-15 balance from urea applied to rice on a paddy soil.JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,18(2),299-303. |
| MLA | Fan, XH,et al."Ammonia volatilization losses and N-15 balance from urea applied to rice on a paddy soil".JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA 18.2(2006):299-303. |
入库方式： iSwitch采集
来源：南京土壤研究所
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。