| 有机肥对土壤脲酶活性特征的影响 |
| 投稿时间：1995-12-25 修订日期：1996-07-07 点此下载全文 |
| 引用本文：和文祥,朱铭莪,童江云,周玲.有机肥对土壤脲酶活性特征的影响[J].西北农业学报,1997,6(2):73~75 |
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| 摘要点击次数: 40 |
| 全文下载次数: 14 |
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| 基金项目:国家教委博士点基金 |
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| 中文摘要:采用氮流动连续分析仪对长期定位试验地土壤脲酶活性进行了分析,结果表明:脲酶总量、动力学参数和热力学参数均证明,施有机肥对土壤脲酶活性特征的影响远大于单施化肥和不施肥土壤,在各处理中脲酶的Vmax、Vmax/Km、k、F0值均最大,Ea、ΔH和ΔG则最小。 |
| 中文关键词:土壤脲酶 有机肥 动力学参数 热力学参数 |
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| Effect of Organic Fertilizer on the Characteristics of Soil Urease |
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| Abstract:Soil urease activities in long-term fertilizer trials were determined by Flow-Continual-Nitrogen-Analyser(FCNA) made in British.The results showed as follows:Effect of organic fertilizer on soil urease characteristics was far more than that of signal chemical fertilizer and no-fertilizer from total amount of urease,urease kinetic and thermodynamic parameters.In all treatments,soil ureases of organic fertilizer had the highest values of Vmax、Vmax/Km、k and F0,but the smallest values of Ea、△H and △G. |
| keywords:Soil urease Organic fertilizer Kinetic parameter Therm odynamic parameter |
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