The Korean Journal of Pesticide Science (농약과학회지)

The Korean Society of Pesticide Science (한국농약과학회)
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The Extrapolations to Reduce the Need for Pesticide Residues Trials on Continuous Harvesting Leafy Vegetables

농약 잔류 시험을 위한 연속수확 엽채소류의 외삽

  • Son, Kyeong-Ae (National Academy of Agricultural Science, Rural Development Administration) ;
  • Im, Geon-Jae (National Academy of Agricultural Science, Rural Development Administration) ;
  • Hong, Su-Myeong (National Academy of Agricultural Science, Rural Development Administration) ;
  • Kim, Chan Sub (National Academy of Agricultural Science, Rural Development Administration) ;
  • Gil, Geun-Hwan (National Academy of Agricultural Science, Rural Development Administration) ;
  • Jin, Yong-Duk (National Academy of Agricultural Science, Rural Development Administration) ;
  • Kim, Jinba (National Academy of Agricultural Science, Rural Development Administration) ;
  • Ihm, Yang Bin (National Academy of Agricultural Science, Rural Development Administration) ;
  • Ko, Hyeon Seok (Knowledge & information officer, Rural Development Administration) ;
  • Kim, Jang Eok (A School of Applied Bioscience, Kyungpook National University)
  • 손경애 (농촌진흥청 국립농업과학원) ;
  • 임건재 (농촌진흥청 국립농업과학원) ;
  • 홍수명 (농촌진흥청 국립농업과학원) ;
  • 김찬섭 (농촌진흥청 국립농업과학원) ;
  • 길근환 (농촌진흥청 국립농업과학원) ;
  • 진용덕 (농촌진흥청 국립농업과학원) ;
  • 김진배 (농촌진흥청 국립농업과학원) ;
  • 임양빈 (농촌진흥청 국립농업과학원) ;
  • 고현석 (농촌진흥청 지식정보화담당관실) ;
  • 김장억 (경북대학교 농업생명과학대학)
  • Received : 2013.09.04
  • Accepted : 2013.10.07
  • Published : 2013.12.31
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Abstract

This study was carried out to investigate the pesticide residue pattern among different leafy vegetables applied with foliar spraying under greenhouse and to check extrapolating from some residue trial data to other minor crops. Leafy vegetables used in this study were: Mustard greens (Brassica juncea L.), Kale (Brassica oleracea L.), Dacheongchae (a kind of pak-choi (Brassica rapa subsp. chinensis L.)), Leaf broccoli (Brassica oleracea var alboglabra), Perilla leaf (Perilla frutescens (L.) Britton var. Frutescens), Leaf lettuce (Lactuca sativa L.), Swiss chard (Beta vulgaris L. subsp. vulgaris) and Red leaf chicory (Cichorium intybus L. var. foliosum Hegi). These are cultivated all year under indoor or outdoor and cut the leaf from plant continuously during harvest time. The amounts of pesticide deposit in/on the continuous harvesting leafy vegetables were affected by the ratios of leaf area to weight. Ratio of perilla leaf was the largest among crops as 58 $cm^2/g$. The residue levels of 7 pesticides in/on perilla leaf were the highest than those of other crops through the statistical analysis from zero day to fifth day after last application. The representative crop in 8 crops was perilla leaf selected based on the amounts of daily consumption and the high residues. This study suggest that the continuous harvesting leafy greens should be separated from the one time harvesting leafy vegetables for the pesticide recommendations because of different harvesting habits and pre-harvest intervals.

본 실험은 작물의 농약잔류성 포장시험 결과를 다른 소면적 작물로 외삽 할 수 있는지 알아보기 위하여 온실에서 재배되는 엽채소류를 대상으로 경엽살포 후 작물간 농약잔류 경향을 비교하였다. 배추속에 속하는 겨자채(Brassica juncea L.), 케일(Brassica oleracea L.), 다청채(a kind of pak-choi (Brassica rapa subsp. chinensis L.)), 잎 브로콜리(Brassica oleracea var alboglabra) 4종과 배추속이 아닌 들깻잎(Perilla frutescens Britt.), 상추(Lactuca sativa L.), 적근대(Beta vulgaris L. subsp. vulgaris) 및 적치커리(Cichorium intybus L. var. foliosum Hegi) 4종을 대상으로 하였다. 이들은 온실이나 노지에서 연중 재배되며 일정한 수확기 동안 연속적으로 잎을 따서 수확하는 작물들로서 시금치처럼 포기 형태로 일시에 수확하는 작물들과 구별된다. 무게 대비 엽면적 비율이 58 $cm^2/g$으로 가장 높은 들깻잎에서 imidacloprid 등 7종 농약의 잔류량이 살포 당일부터 5일 후 까지 가장 높았다. 따라서 식품의 일일섭취량 통계에 따른 섭취량이 일정 수준을 차지하면서 시험대상 8작물중 농약 잔류량이 상대적으로 높은 들깻잎을 농약잔류성시험의 대표작물로 선정하여 외삽 적용을 위한 작물 그룹을 제안한다.

Keywords

References

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