Urea hydrolysis and inorganic N in a Luvisol after application of fertiliser containing rare-earth elements
文献类型：期刊论文
| 作者 | Xu, XK; Wang, ZJ; Wang, YS; Inubushi, K |
| 刊名 | AUSTRALIAN JOURNAL OF SOIL RESEARCH
 |
| 出版日期 | 2003 |
| 卷号 | 41期号:4页码:741-748 |
| 关键词 | nitrification rare earths urea |
| 英文摘要 | In recent decades, Chinese agriculturists have used rare-earth-containing fertilisers as basal fertilisers together with N fertilisers ( e. g. urea). We studied urea hydrolysis and its hydrolysis products in a laboratory experiment using urea-N fertiliser with rare earths at rates from 0.5 to 50% (w/w). The results indicated that application of rare earths at a high rate could result in a short-term inhibition of urea hydrolysis and an increase in soil (NH4+ + NO3- + NO2-)-N content. When the application rate of rare earths was higher than 5% of the applied urea-N ( corresponding to 10 mg/kg soil), soil exchangeable NH4+-N content increased significantly following the hydrolysis of the applied urea. Increasing the application rate of rare earths appeared to reduce the content of soil urea-derived (NO3- + NO2-)- N. A substantial reduction in soil pH was found immediately after application of rare earths and urea. We conclude that application of rare earths at > 10 mg/kg may lead to a substantial increase in the content of urea-derived N in the soil, via the inhibition of urea hydrolysis and nitrification. |
| 研究领域[WOS] | Agriculture |
| WOS记录号 | WOS:000184275500011 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/23782]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Xu, XK,Wang, ZJ,Wang, YS,et al. Urea hydrolysis and inorganic N in a Luvisol after application of fertiliser containing rare-earth elements[J]. AUSTRALIAN JOURNAL OF SOIL RESEARCH,2003,41(4):741-748. |
| APA | Xu, XK,Wang, ZJ,Wang, YS,&Inubushi, K.(2003).Urea hydrolysis and inorganic N in a Luvisol after application of fertiliser containing rare-earth elements.AUSTRALIAN JOURNAL OF SOIL RESEARCH,41(4),741-748. |
| MLA | Xu, XK,et al."Urea hydrolysis and inorganic N in a Luvisol after application of fertiliser containing rare-earth elements".AUSTRALIAN JOURNAL OF SOIL RESEARCH 41.4(2003):741-748. |
入库方式： OAI收割
来源：生态环境研究中心
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。