除草剂对土壤脱氢酶活性及呼吸强度的影响  

Effect of Herbicides on Dehydrogenase Activity in Soil and Soil Respiration

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,哈尔滨150030

出　　处：《吉林农业科学》2011年第5期53-55,共3页Journal of　Jilin Agricultural Sciences

摘　　要：以乙草胺、丁酯、春多多、氟乐灵4种常用的除草剂为研究对象,研究其对土壤酶和土壤呼吸强度的影响。结果表明:4种除草剂对土壤脱氢酶都有不同程度的抑制作用,浓度越高,抑制作用越明显。4种除草剂对土壤呼吸强度影响初期表现为轻微的激活,5 d后出现抑制作用,12 d后基本恢复正常。Effect of acetochlor, butyl, spring lot, trifluralin, four commonly used herbicides, on soil enzymes and soil respiration was studied. The results showed that activity of soil dehydrogenase was inhibited by four kinds of herbicides to some extent. The higher the concentration of herbicide applied, the more obviously the inhibition. Soil respiration was slightly raised by four kinds of herbicides at initial stage, but decreased 5 days later, and returned to normal 12 days later.

关 键 词：除草剂 土壤脱氢酶 土壤微生物 

分 类 号：S482.4[农业科学—农药学]