甲基磺草酮对盐城地区土壤过氧化氢酶活性和细菌数量的影响

Effects of Methylsulfone on Soil Hydrogen Peroxide in Yancheng Area Enzyme activity and the number of bacteria

通过实验室培养试验,模拟土壤生态系统研究了不同玉米除草剂甲基磺草酮分别对典型土壤酶活性过氧化氢酶和典型微生物细菌的影响。结果表明,甲基磺草酮对土壤酶活性和微生物有显著差异。甲基磺草酮对土壤过氧化氢酶的活性表现为先激活后抑制再激活的作用,低浓度的甲基磺草酮对土壤细菌具有促进作用。土壤微生物与土壤酶之间存在一定的相关性。

The effects of different maize herbicides,methyl sulfone,on soil enzyme catalase and typical microbial bacteria were studied by laboratory culture experiment and simulated soil ecosystem.The results showed that there were significant differences in soil enzyme activities and microbes.The activity of methotrexate on soil catalase was the first to inhibit the reactivation after activation.Low concentration of methotrexate could promote soil bacteria.There is a certain correlation between soil microbes and soil enzymes.