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http://dx.doi.org/10.3839/jabc.2019.003

Pesticide residual characteristics in Strawberry, treated by drenching under hydroponics  

Lee, Hyo-Sub (Chemical Safety Division, Agro-Food Safety and Crop Protection Department, NAS, RDA)
Hwnag, In-Seong (Chemical Safety Division, Agro-Food Safety and Crop Protection Department, NAS, RDA)
Cheon, Jae-In (Chemical Safety Division, Agro-Food Safety and Crop Protection Department, NAS, RDA)
Kwon, Hye-Young (Chemical Safety Division, Agro-Food Safety and Crop Protection Department, NAS, RDA)
Hong, Su-Myeong (Chemical Safety Division, Agro-Food Safety and Crop Protection Department, NAS, RDA)
Publication Information
Journal of Applied Biological Chemistry / v.62, no.1, 2019 , pp. 11-17 More about this Journal
Abstract
Strawberries are one of the main commodities in Korea and have been exported over 40 million dollar. Because the strawberry cultivation using hydroponics has increased, treatment of pesticide by drenching draw interest recently. However, detailed researches for drenching treatment of pesticide are limited, which results in difficulties in proper pesticide applications in agricultural fields. To activate use of drenching and improve safety in agricultural products, In this study, time-dependent residual characteristic of pesticides were compared with between different applications of pesticides in strawberries. The characteristics of azoxystrobin, prochloraz and thiamethoxam were investigated with drenching treatment at different applications: the time of treatment, concentration etc. at hydroponic cultivation for 40 days. Azoxystrobin and prochloraz were not detected at 14 day after application. Thiamethoxam was detected from 0.02 to 0.85 mg/kg. Crop uptake of pesticides was strongly affected with octanol-water partition coefficient and solubility in water. Residual amount in crops are highly dependent on the concentration of active ingredient of pesticides.
Keywords
Drenching; Hydroponic; Residual pesticide; Strawberry;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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