The Korean Journal of Pesticide Science (농약과학회지)

The Korean Society of Pesticide Science (한국농약과학회)
권호 표지

Residue of Pesticides Carbendazim and Chlorpyrifos in Different Parts of Red Pepper

고추의 부위별 카벤다짐과 클로르피리포스의 잔류 양상

  • Park, Hae-In (Department of Gyeongbuk, National agricultural products quality management service) ;
  • Hwang, Jae-Moon (Department of Horticulture & Breeding, Andong National University) ;
  • Kim, Byung-Soo (Department of Horticulture, Kyungpook National University) ;
  • Lee, Mi-Gyeong (Food Science & Biotechnology Andong National University) ;
  • Chol, Young-Wook (Korea Institute of Science and Technology Information) ;
  • Lee, Min-Ho (Department of Gyeongbuk, National agricultural products quality management service) ;
  • Jeong, Jeong-Eun (Department of Gyeongbuk, National agricultural products quality management service) ;
  • Kim, Jeong-Han (Department of Gyeongbuk, National agricultural products quality management service)
  • Received : 2011.08.08
  • Accepted : 2011.08.24
  • Published : 2011.09.30
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Abstract

This experiment was carried out to examine the residual amount variation of carbendazim and chlorpyrifos in fruit parts of red pepper according to the open field and/or the rain shelter house. It was shown higher residual amounts of agrochemicals in the field than the house condition at two hours (0 day) after chemical application, but it was shown higher residual amounts in the house at 5 days and 10 days. Although the residual amount in the field was higher than in the house at the beginning, the chemicals fast degraded in field condition. Carbendazim and chlorpyrifos remained as time passed in order of receptacle, but the residual amounts of two chemicals in leaf at $5^{th}$ day. Carbendazim and chlorpyrifos were lessened until 10 days after chemical application, and reduction rate were 19.1% and 66.4% in flesh, 45.2% and 62.3% in receptacle, and 41.6% and 72.0% in the stalk, respectively. The reduction rate at 15 days showed 31.1%, 75.3% in flesh, 43.5%, 81.7% in receptacle, and 47.7%, 82.8% in stalk, respectively. Therefore the reduction rate of carbendazim showed receptacle > stalk > flesh, and that of chlorpyrifos showed stalk > receptacle > flesh in order. The calculated half-life of carbendazim showed 29.6 days in flesh, 13.6 days in receptacle, and 16.0 days in stalk, but that of chlorpyrifos showed 8.3 days in flesh, 8.3 days in receptacle, and 6.3 days in stalk. In conclusion, the half-life of carbendazim was longer than that of chlorpyrifos in even part, and especially was longest in flesh part of fruit.

재배형태별(노지, 비가림 하우스)로 고추의 재배에 사용되는 carbendazim과 chlorpyrifos의부위별 잔류량에 대해 조사를 하였다. carbendazim과 chlorpyrifos 모두 농약 살포 2시간 후에는 비가림하우스보다 노지에서 잔류량이 높았으며, 시일이 경과한 5일과 10일 후에는 오히려 비가림하우스에서 높았다. 노지에서 초기 농약잔류가 비가림하우스보다 높음에도 불구 하고 농약의 분해가 더 빨랐다. 시간이 경과하여 5일차에는 carbendazim이나 chlorpyrifos은 과탁/과경 > 과경/과탁 > 과육의 순으로 농약 잔류가 높았으며, 잎의 농약잔류량은 다른 부위보다 아주 높았다. carbendazim과 chlorpyrifos의 경감율은 수확이 늦추어짐에 따라 감소되지만, 10일차에 과육에서 19.1%와 66.4%, 과탁에서 45.2%와 62.3%, 그리고 과경에서 41.6%와 72.0%로 각각 나타났다. 또한 15일차의 경감율은 과육에서 31.1%와 75.3%, 과탁에서 43.5%와 81.7%, 그리고 과경에서 47.7%와 82.8%로 나타났다. 따라서 carbendazim은 과탁 > 과경 > 과육의 순으로, chlorpyrifos는 과경 > 과탁 > 과육의 순으로 경감율을 보였다. 잔류량 반감기는 carbendazim에서 과육은 29.6일, 과탁은 13.6일, 과경은 16.0일 이었고, chlorpyrifos에서는 과육 8.3일, 과탁 8.3일, 과경 6.3일로 나타났다. 이와 같이 침투성농약인 carbendazim이 chlorpyrifos보다 반감기가 모든 부위에서 길었으며, 부위별로는 두 성분 다 과육에서 반감기가 긴 것으로 나타났다.

Keywords

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