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《Hubei Agricultural Sciences》 2011-04
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Effects of Imazethapyr on Soil Aerobic Microbes and Enzyme Activities

SHI Wei,LI Xiang-ju,LIU Shi-yang,CAO Hong-yu(Institute of Plant Protection,CAAS,Beijing 100193,China)  
Effects of different doses of imazethapyr on soil aerobic microbial densities and activities of catalase,urease and protease were investigated using the dilution plate method.There were no significant changes in the soil aerobic bacteria densities at the recommended rate(0.1 μg/g) of imazethapyr,but the densities of aerobic fungi and actinomycetes increased in the same treatment.All of the soil aerobic bacteria,fungi and actinomycetes' densities increased at 10-fold and 100-fold recommended rates of imazethapyr.There were no significant changes in the soil catalase,urease and protease's activity at the recommended rate after application,however the activity of these enzymes increased at 10-fold and 100-fold higher rates.
【CateGory Index】: S154.36
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