KINETIC AND THERMODYNAMIC BEHAVIORS OF SOIL UREASE AS AFFECTED BY UREASE INHIBITORS
文献类型：期刊论文
| 作者 | Juan, Y. H.1,2; Chen, Z. H.1; Chen, L. J.1; Wu, Z. J.1; Wang, R.2; Sun, W. T.2; Zhang, Y. L.1 |
| 刊名 | JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION
 |
| 出版日期 | 2010 |
| 卷号 | 10期号:1页码:1-11 |
| 关键词 | Kinetic Parameters Thermodynamic Parameters Soil Urease Urease Inhibitors Temperatures |
| ISSN号 | 0718-9516 |
| DOI | 10.4067/S0718-27912010000100001 |
| 英文摘要 | The kinetic characteristics of soil urease have attracted great attention, but little information was available on its kinetic and thermodynamic behaviors as affected by urease inhibitors and temperature. With black soil (Pachic Udic Mollisol) in Heilongjiang Province of Northeast China as a test soil, an incubation test was conducted to investigate the effect of urease inhibitors (hydroquinone, HQ; phenyl phosphorodiamidate, PPD; N-(n-Butyl) thiophosphoric triamide, NBPT) on kinetic and thermodynamic behaviors of soil urease at 10 degrees C, 20 degrees C and 30 degrees C. The results showed that all tested inhibitors increased K-m and decreased V-max, behaving as mixed inhibitors to soil urease. With increasing temperature, the K-m and V-max values increased significantly. With incubation time, K-m decreased, while V-max significantly increased. Compared with control, treatment HQ decreased soil urease thermodynamic parameters Ea, Delta H, and Q(10), but in PPD and NBPT treatments, the parameters increased slightly. The Q(10) and Delta H of soil urease decreased slightly with increasing temperature. Among test inhibitors, PPD and NBPT were more effective in influencing the kinetic and thermodynamic behaviors of urease in black soil. The variations in kinetic and thermodynamic parameters indicated that the effects of urease inhibitors on soil urease are greater on kinetic behaviors rather than on thermodynamic ones. |
| WOS研究方向 | Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:000288497900001 |
| 出版者 | SOC CHILENA CIENCIA SUELO |
| 源URL | [http://210.72.129.5/handle/321005/121561]  |
| 专题 | 中国科学院沈阳应用生态研究所 |
| 通讯作者 | Chen, L. J. |
| 作者单位 | 1.Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China 2.Liaoning Acad Agr Sci, Shenyang 110161, Peoples R China |
| 推荐引用方式 GB/T 7714 | Juan, Y. H.,Chen, Z. H.,Chen, L. J.,et al. KINETIC AND THERMODYNAMIC BEHAVIORS OF SOIL UREASE AS AFFECTED BY UREASE INHIBITORS[J]. JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION,2010,10(1):1-11. |
| APA | Juan, Y. H..,Chen, Z. H..,Chen, L. J..,Wu, Z. J..,Wang, R..,...&Zhang, Y. L..(2010).KINETIC AND THERMODYNAMIC BEHAVIORS OF SOIL UREASE AS AFFECTED BY UREASE INHIBITORS.JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION,10(1),1-11. |
| MLA | Juan, Y. H.,et al."KINETIC AND THERMODYNAMIC BEHAVIORS OF SOIL UREASE AS AFFECTED BY UREASE INHIBITORS".JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION 10.1(2010):1-11. |
入库方式： OAI收割
来源：沈阳应用生态研究所
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