CAJ | 학술논문

采用气相色谱法及田间试验法研究氯氰菊酯在香蕉及蕉园土壤上的残留降解动态。结果表明，氯氰菊酯在香蕉上的原始沉积量较低，不同施药剂量有明显的差异。氯氰菊酯在香蕉及蕉园土壤上降解速度较缓慢，残留降解规律均符合一级动力学关系，在香蕉上两种施药剂量的降解速率相接近，半衰（T1/2）为12.1～12.8 d、降解99%需时（T0.99）为80.3～85.1 d；在蕉园土壤上T1/2、T0.99分别为8.0 d、52.9 d。在香蕉上距第2次施药后62～70 d最终产品残留量＜0.01 mg/kg。在福建蕉区氯氰菊酯按常规施药方法，间隔期7 d连续施用有效剂量56.25 g/hm2两次，施药安全间隔期可推荐为＞7 d，最终产品质量符合NY/T 750-2011规定的MRL要求。
채용기상색보법급전간시험법연구록청국지재향초급초완토양상적잔류강해동태。결과표명，록청국지재향초상적원시침적량교저，불동시약제량유명현적차이。록청국지재향초급초완토양상강해속도교완만，잔류강해규률균부합일급동역학관계，재향초상량충시약제량적강해속솔상접근，반쇠（T1/2）위12.1～12.8 d、강해99%수시（T0.99）위80.3～85.1 d；재초완토양상T1/2、T0.99분별위8.0 d、52.9 d。재향초상거제2차시약후62～70 d최종산품잔류량＜0.01 mg/kg。재복건초구록청국지안상규시약방법，간격기7 d련속시용유효제량56.25 g/hm2량차，시약안전간격기가추천위＞7 d，최종산품질량부합NY/T 750-2011규정적MRL요구。
The degradation dynamics of cypermethrin in bananas and its orchard were studied by using GC and field experiment. The results showed that the original sediment of cypermethrin in bananas was relatively lower. The rule of cypermethrin degradation in bananas and the soil were well-fitted with first-order kinetics. On one hand, two different application doses share the same degradation coefficient, T1/2 ranged from 12.1 d to 12.88 d and T0.99 ranged from 80.3 d to 85.1 d in bananas. On the other hand, in the soil T1/2 and T0.99 were 8.0 d, 52.9 d respectively. Furthermore, after applying for 62~70 d, the residue of cypermethrin in banana orchard was less than 0.01 mg/kg. The application of cypermethrin into bananas according to the regular method in Fujian, which is an effective dose of 56.25 g/hm2, was applied continually with an interval of 7 d. So it meaned that more than 7 d can be recommended as pre-harvest time. The quality safety of their products was fulfill quality requirements of NY/T 750-2011.