茴香对土壤中毒死蜱残留吸收的研究  

Uptaken by Fennel on Chlorpyrifos Residues in the Soil

作　　者：张乃琴[1] 王明友[1] 

机构地区：[1]德州学院农学系,山东德州253023

出　　处：《北方园艺》2011年第19期136-138,共3页Northern Horticulture

基　　金：山东省农业良种工程重点资助项目(鲁科农字2009-103)

摘　　要：采用不同浓度的毒死蜱处理土壤,采用气相色谱法对毒死蜱在土壤及茴香中的残留进行监测。结果表明:土壤中毒死蜱的含量不同,其降解速率也不同,降解半衰期分别为19.6、25.8、39.4和45.6d,处理浓度高时对后茬作物也会产生影响;土壤中的毒死蜱能被茴香吸收,吸收量与土壤中毒死蜱含量成正相关,线性方程为C茴香=0.0223C土壤-0.2991,R2=0.8966;土壤中毒死蜱含量高时影响茴香的出苗率、长势及单株重量。在未做处理的情况下,土壤中毒死蜱含量不会导致茴香中毒死蜱含量超标,产品符合我国食品中规定毒死蜱在叶菜类为0.1mg/kg的限量标准要求。With different concentrations of chlorpyrifos treat soil,monitoring the residue of Chlorpyrifos in the soil and fennel with Gas chromatography.The results showed that different levels of chlorpyrifos in soil bring about the degradation rate also different,it＇s degradation half-life were 19.6,25.8,39.4 and 45.6 d,Dealing soil with high concentrations will also affect the succeeding crop;Chlorpyrifos in the soil could be uptaken by fennel,Absorption and chlorpyrifos content in soil was positively related,Linear equation was Cfennel =0.0223Csoil-0.2991,R2=0.8966;High levels of chlorpyrifos in soil affect the emergence,growth and weight per plant of fennel.In normal circumstances without making treatment,chlorpyrifos levels in soil would not lead to excessive levels of chlorpyrifos fennel,products meet the requirements of food in the leaf as chlorpyrifos 0.1 mg/kg of the standards.

关 键 词：茴香 毒死蜱 残留 吸收 

分 类 号：S636.9[农业科学—蔬菜学]