Residue Patterns of Azoxystrobin and Cyenopyrafen In Grape between Rainshield and Plastic House Conditions

비가림과 시설 재배조건시 포도 중 Azoxystrobin과 Cyenopyrafen의 잔류 특성

The residual patterns of azoxystrobin and cyenopyrafen were investigated to compare the differences between rainshield and plastic house conditions of the grapes. Initial residue concentrations of azoxystrobin were $0.54\;mg{\cdot}kg^{-1}$ under rainshield condition and $0.9\;mg{\cdot}kg^{-1}$ under plastic house condition. And cyenopyrafen was 0.55 and $0.64\;mg{\cdot}kg^{-1}$ respectively. Biological half-life of azoxystrobin was calculated as 13.28 days under rainshield and 15.58 days under plastic house condition. And cyneopyrafen was 7.99 and 12.65 days, respectively. In comparison with two different cultivation conditions, pesticides in/on the grape were decomposed more faster under plastic house than rain shield conditions.

재배방법에 따른 농약의 잔류성을 비교하기 위하여 비가림과 시설 재배조건에서 포도 중 azoxystrobin과 cyenopyrafen의 잔류 특성을 분석하였다. 그 결과 azoxystrobin의 경우 기준량은 $0.54-0.9\;mg{\cdot}kg^{-1}$, 배량은 $0.92-2\;mg{\cdot}kg^{-1}$이었고, cyenopyrafen의 경우 기준량은 $0.55-0.64\;mg{\cdot}kg^{-1}$, 배량은 $0.97-1.27\;mg{\cdot}kg^{-1}$이었다. 이를 통해 산출한 반감기는 azoxystrobin은 기준량은 13.28-15.58일, 배량은 10.81-13.67일이었으며, cyenopyrafen은 7.99-12.65일, 배량은 7.92-14.65일로 나타났다. 두 재배조건 간에 잔류 특성을 비교해 본 결과 시설 재배조건이 비가림 재배조건보다 두 약제 모두 분해가 더 빨랐다.