功夫菊酯對(duì)植煙土壤酶活性的影響

Effect of Cyhalothrin on Enzyme Activity in Tobacco Planting Soil

摘要: 采用室內(nèi)模擬方法，研究了不同濃度功夫菊酯對(duì)植煙土壤脲酶和過(guò)氧化氫酶活性的影響,。結(jié)果表明,，功夫菊酯對(duì)脲酶的活性產(chǎn)生顯著影響，呈現(xiàn)出“激活→抑制→恢復(fù)→再激活”現(xiàn)象,；功夫菊酯對(duì)過(guò)氧化氫酶活性影響不太明顯,，與對(duì)照組相比，在培養(yǎng)初期(1~5 d),，只有低濃度（1.0 mg/kg）功夫菊酯對(duì)過(guò)氧化氫酶活性產(chǎn)生較顯著的影響,，影響大體趨勢(shì)表現(xiàn)為“激活→抑制”現(xiàn)象。

Abstract: Effects of cyhalothrin with different concentration on urease and catalase activities in tobacco planting soil were analyzed by lab simulation. The results showed that urease activity was significantly influenced by cyhalothrin, and could be described as a process of activation→inhibition→reinstation→re-activation. But the effect of cyhalothrin on catalase activity was not obvious. Compared with the control group in early training (1~5 d), only 1.0 mg/kg of cyhalothrin had obviously influence on catalase, but the general trend performed as the process of activation→inhibition.