KINETICS OF SOIL UREASE AFFECTED BY UREASE INHIBITORS AT CONTRASTING MOISTURE REGIMES
文献类型：期刊论文
| 作者 | Juan, YH ; Chen, LJ ; Wu, ZJ ; Wang, R |
| 刊名 | REVISTA DE LA CIENCIA DEL SUELO Y NUTRICION VEGETAL
 |
| 出版日期 | 2009 |
| 卷号 | 9期号:2页码:125-133 |
| 关键词 | kinetic parameters mixed inhibition moisture regime soil urease |
| ISSN号 | 0717-635X |
| 通讯作者 | Chen, LJ, Chinese Acad Sci, Inst Appl Ecol, POB 417, Shenyang 110016, Peoples R China |
| 中文摘要 | With black soil (Pachic Udic Argiboroll) of Northeastern China as the test object, an incubation test was conducted to investigate the effects of urease inhibitors, hydroquinone (HQ), phenyl phosphorodiamidate (PPD) and N-(n-Butyl) thiophosphoric triamide (NBPT), on the kinetic characteristics of soil urease under normal moisture and waterlogged conditions, aimed to study the changes of catalytic potential of soil urease and the inhibition mechanisms. The results showed that test urease exhibited typical Michaelis-Menten kinetic behaviors, and all test inhibitors increased the K-m and decreased the V-max of soil urease, behaving as mixed inhibitors to soil urease. Under both normal and waterlogged conditions, compared with HQ, PPD and NBPT made K-m increase and V-max and V-max/K-m decrease more greatly, and the duration of these effects was longer (ca. 30 days vs. 10 days). Under water-logging, PPD made more increment of K-m and more decrement of V-max and V-max/K-m than NBPT, compared with that under normal soil moisture condition, suggesting that NBPT was more available under normal soil moisture condition, while PPD was promising under water-logging condition. To apply urease inhibitors and to control soil moisture condition could be a feasible way in increasing fertilizer N use efficiency affected by soil urease. |
| 学科主题 | Soil Science |
| 收录类别 | SCI |
| 资助信息 | National Basic Research Program of China (973 Program) [2007CB109307]; Chinese Government Science and Technology Supporting Program [2006BAD10B01] |
| 语种 | 英语 |
| WOS记录号 | WOS:000269531800004 |
| 公开日期 | 2011-09-23 |
| 源URL | [http://210.72.129.5/handle/321005/54067]  |
| 专题 | 沈阳应用生态研究所_沈阳应用生态研究所_期刊论文 |
| 推荐引用方式 GB/T 7714 | Juan, YH,Chen, LJ,Wu, ZJ,et al. KINETICS OF SOIL UREASE AFFECTED BY UREASE INHIBITORS AT CONTRASTING MOISTURE REGIMES[J]. REVISTA DE LA CIENCIA DEL SUELO Y NUTRICION VEGETAL,2009,9(2):125-133. |
| APA | Juan, YH,Chen, LJ,Wu, ZJ,&Wang, R.(2009).KINETICS OF SOIL UREASE AFFECTED BY UREASE INHIBITORS AT CONTRASTING MOISTURE REGIMES.REVISTA DE LA CIENCIA DEL SUELO Y NUTRICION VEGETAL,9(2),125-133. |
| MLA | Juan, YH,et al."KINETICS OF SOIL UREASE AFFECTED BY UREASE INHIBITORS AT CONTRASTING MOISTURE REGIMES".REVISTA DE LA CIENCIA DEL SUELO Y NUTRICION VEGETAL 9.2(2009):125-133. |
入库方式： OAI收割
来源：沈阳应用生态研究所
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