| 尿素与多效唑配施对苯磺隆胁迫下土壤酶活性的影响 |
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| 引用本文： | 吴济南,王丽玲,王惟帅,杜慧玲.尿素与多效唑配施对苯磺隆胁迫下土壤酶活性的影响[J].中国水土保持科学,2011,9(4):110-116. |
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| 作者姓名： | 吴济南 王丽玲 王惟帅 杜慧玲 |
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| 作者单位： | 山西农业大学文理学院,030801,山西太谷 |
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| 基金项目： | 山西省科技攻关项目“麦田除草剂苯磺隆残留危害的综合治理技术”;(20110311022); 山西农业大学博士基金“除草剂残留的安全性评价及小麦对其响应基因性差异的研究”(412559); 横向委托项目“苯磺隆残留风险评价”(2010HX02) |
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| 摘 要： | 通过盆栽试验,采用三因素完全随机设计,研究尿素、多效唑配施对苯磺隆胁迫下土壤脲酶、碱性磷酸酶、蛋白酶活性的影响。结果表明:不同浓度苯磺隆对土壤脲酶活性表现为抑制—激活作用,抑制和激活作用均随着苯磺隆浓度的增大而增强,第60 d激活率是对照的2.83倍;低浓度苯磺隆对碱性磷酸酶表现为激活—抑制—激活作用,高浓度苯磺隆表现为抑制—激活作用,第60 d极显著地高于对照,是对照的2.49倍;低浓度苯磺隆对蛋白酶活性表现为激活—抑制作用,高浓度苯磺隆表现为抑制—激活作用;尿素、多效唑(除B1N1处理对蛋白酶的影响外)配施可减弱苯磺隆对土壤脲酶、碱性磷酸酶和蛋白酶活性的抑制作用,大多数处理表现为抑制—激活作用,在处理结束时(第60 d),脲酶和碱性磷酸酶仍极显著地高于对照。
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| 关 键 词： | 苯磺隆 尿素 多效唑 脲酶 碱性磷酸酶 蛋白酶 |
Effect of combined application of urea and paclobutrazol on soil enzyme activity under tribenuron-methyl stress |
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| Wu Jinan,Wang Liling,Wang Weishuai,Du Huiling.Effect of combined application of urea and paclobutrazol on soil enzyme activity under tribenuron-methyl stress[J].Science of Soil and Water Conservation,2011,9(4):110-116. |
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| Authors: | Wu Jinan Wang Liling Wang Weishuai Du Huiling |
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| Affiliation: | Wu Jinan,Wang Liling,Wang Weishuai,Du Huiling(College of Arts & Sciences,Shanxi Agricultural University,030801,Taigu,Shanxi,China) |
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| Abstract: | A pot experiment was conducted with three-factor completely randomized design to evaluate the dynamic effects of combined application of urea and paclobutrazol on the activity of soil urease,alkaline phosphatase and protease under tribenuron-memthyl stress.The results indicated that: different concentrations of tribenuron-methyl had inhibition-activation effects on soil urease activity,and the effects would be strengthened with increase of concentration.The activation rate on the 60th day was 2.83 times of ... |
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| Keywords: | tribenuron-methyl urea paclobutrazol urease alkaline phosphatase protease |
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