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| 苯噻草胺对水田土壤呼吸强度和酶活性的影响 | |
| 引用本文： | 叶央芳,闵航,周湘池.苯噻草胺对水田土壤呼吸强度和酶活性的影响[J].土壤学报,2004,41(1):93-96. |
| 作者姓名： | 叶央芳 闵航 周湘池 |
| 作者单位： | 1. 浙江大学生命科学学院,杭州,310029;宁波大学生命科学与生物工程学院,浙江宁波,315211 2. 浙江大学生命科学学院,杭州,310029 3. 宁波大学生命科学与生物工程学院,浙江宁波,315211 |
| 基金项目： | 国家863计划生物工程技术主题重大专项项目(2002A2104101)资助 |
| 摘 要： | 研究了除草剂苯噻草胺对水稻田土壤呼吸强度和酶活性的影响。表明苯噻草胺使用后初期刺激土壤呼吸作用但随后产生轻微抑制 ,能激活脱氢酶的活性 ,但抑制过氧化氢酶活性随后产生一定的刺激作用。苯噻草胺强烈抑制脲酶活性 ,轻微抑制蛋白酶活性 ,但对磷酸酶具有刺激作用 ,而且随苯噻草胺施用浓度的增加而刺激作用增强。苯噻草胺比上一代除草剂丁草胺所造成的对水稻田土壤呼吸强度和酶活性的影响小 |
| 关 键 词： | 除草剂 苯噻草胺 呼吸作用 土壤酶 |
| 收稿时间： | 2002/9/16 0:00:00 |
| 修稿时间： | 5/4/2003 12:00:00 AM |
EFFECTS OF MEFENACET ON MICROBIAL RESPIRATION AND ENZYME ACTIVITIES IN PADDY SOIL |
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| Ye Yangfang,Min Hang and Zhou Xiangchi.EFFECTS OF MEFENACET ON MICROBIAL RESPIRATION AND ENZYME ACTIVITIES IN PADDY SOIL[J].Acta Pedologica Sinica,2004,41(1):93-96. | |
| Authors: | Ye Yangfang Min Hang and Zhou Xiangchi |
| Affiliation: | College of Life Science, Zhejiang University, Hangzhou 310029, China;College of Life Science and Biotechnology, Ningbo University, Ningbo, Zhejiang 315211, China;College of Life Science, Zhejiang University, Hangzhou 310029, China;College of Life Science and Biotechnology, Ningbo University, Ningbo, Zhejiang 315211, China |
| Abstract: | This paper deals with the influences of herbicide mefenacet on soil respiration and the activities of dehydrogenase,catalase,urease,proteinase and phosphorylase in paddy soil.The results showed that after application of mefenacet with concentration of 0.067,0.100,0.133,0.200 and 0.267 g g-1 dried soil,soil respiration was stimulated at the beginning but reduced slightly afterwards,and the activity of dehydrogenase was enhanced in paddy soil.The soil catalase was less active than dehydrogenase,even inhibited within the first two weeks.The soil urease was strongly depressed and the activity of proteinase took on the slight inhibition within the whole period of experiment.The activity of phosphorylase,however,was raised with the increase of mefenacet concentrations within the first 18 days.Mefenacet had lower effects on soil respiration and enzyme activities than butachlor,an old generation of herbicide. |
| Keywords: | Herbicide Mefenacet Soil respiration Soil enzym e activity |
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