不同农药对土壤脱氢酶活性的影响  

Influence of Different Pesticides on Soil Dehydrogenase Activity

作　　者：姜虎生[1] 王宏燕[2] 

机构地区：[1]辽宁石油化工大学环境与生物工程学院,辽宁抚顺113001 [2]东北农业大学资源与环境学院,黑龙江哈尔滨150030

出　　处：《辽宁农业科学》2011年第3期29-31,共3页Liaoning Agricultural Sciences

摘　　要：研究了博洒、地虫克星、高渗吡虫啉、三氯4种农药对土壤脱氢酶活性及呼吸作用的影响。试验结果表明:土壤脱氢酶活性在低剂量(<2 m l)时随投加高渗吡虫啉、三氯的增加而降低,表现为抑制作用,当超过一定浓度阈值后趋于稳定。而博洒、地虫克星随农药用量的增加,脱氢酶活性先抑制再激活;加入等量(0.01m l)农药的土样随培养时间增加抑制率呈线形增长;不同农药对3种土壤呼吸作用均表现为激活作用。Experiment studies the influence prid, trichloro-4 pesticides on soil dehydroge of the Bo sprinkling, ground insect killer, hypertonic imidaelonase activity and respiration. The results showed that： soil dehydrogenase activity at low ,reduced with the addition increase of hypertonic imidacloprid, triclosan, expressed as inhibition, when the concentration exceeds a certain threshold , stabilized. The Bo sprinkling, insect killer to increase with the amount of pesticides, inhibition of dehydrogenase activity was first re-activated ; adding an equal amount （0. 01 ml） of pesticides in soil samples increased with incubation time was linear growth inhibition ; Different pesticides on soil respiration showed an activation.

关 键 词：农药 土壤呼吸 土壤脱氢酶 

分 类 号：S481[农业科学—农药学]