| 渗灌对保护地土壤脲酶和过氧化氢酶活性的影响 |
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| 引用本文： | 王耀生,张玉龙,黄毅,王宇菲,刘洋,魏忠平.渗灌对保护地土壤脲酶和过氧化氢酶活性的影响[J].安徽农业科学,2006,34(1):103-105. |
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| 作者姓名： | 王耀生 张玉龙 黄毅 王宇菲 刘洋 魏忠平 |
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| 作者单位： | 1. 沈阳农业大学土地与环境学院,辽宁,沈阳,110161
2. 中国农业大学资源与环境学院,北京,100094 |
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| 基金项目： | 国家高技术研究发展计划(863计划)
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辽宁省节水重大项目 |
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| 摘 要： | 通过保护地番茄栽培试验,研究渗灌及不同灌水控制下限101、62、54、0和63 kPa处理对0~10、10~20、20~30、30~40和40~60cm 5个土层脲酶和过氧化氢酶活性的影响。结果表明:渗灌及其灌水控制下限能显著影响土壤中脲酶和过氧化氢酶的活性。渗灌灌水能促进脲酶活性的提高,灌水控制下限较高时,灌水处理后各土层脲酶活性较高,有利于为作物的生长提供充足的氮素营养。过氧化氢酶活性的变化与灌水和土壤水分状态密切相关,灌水控制下限较低时,灌水处理后各土层过氧化氢酶活性较高,频繁少量的灌水能促进各土层过氧化氢酶活性的不断提高。
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| 关 键 词： | 渗灌 灌水控制下限 脲酶活性 过氧化氢酶活性 |
| 文章编号： | 0517-6611（2006）01-0103-03 |
| 收稿时间： | 2005-10-26 |
| 修稿时间： | 2005-10-26 |
Effect of Subsurface Irrigation Scheduling on Soil Urease and Catalase Activity in Protected Field |
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| WANG Yao-sheng et al.Effect of Subsurface Irrigation Scheduling on Soil Urease and Catalase Activity in Protected Field[J].Journal of Anhui Agricultural Sciences,2006,34(1):103-105. |
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| Authors: | WANG Yao-sheng |
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| Institution: | College of Land and Environmental Science, Shenyang Agricultural University, Shenyang, Liaoning 110161 |
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| Abstract: | Changes of soil urease and catalase activity were studied in five irrigation treatments,its maximum allowable depletion was 10 kPa,16 kPa,25 kPa,40 kPa and 63 kPa respectively in tomato cultivated in a protected field.The results showed that subsurface irrigation and irrigation scheduling had significant effects on soil urease and catalase activity.Subsurface irrigation could accelerate soil urease activity and it was higher in the treatment of higher maximum allowable depletion,which was beneficial to the supply of sufficient N for plant growth.Changes of catalase activity were closely relevant with soil available water.Catalase activity was higher in the treatment of lower maximum allowable depletion. |
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| Keywords: | Subsurface irrigation Irrigation scheduling Urease activity Catalase activity |
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