No inhibition was found on respiration of soil microbe in chlorpyrifos and fenpropathrin treatments, showing that both insecticides belong to low poisonous chemicals to soil microbe.

• 结果表明,毒死蜱和甲氰菊酯对土壤呼吸基本无抑制作用。安全性评价认为毒死蜱和甲氰菊酯对土壤微生物均属于低毒级农药。