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Deposit Amounts of Dithianone on Citrus leaves by Different Spray Methods

살포 방법에 의한 살균제 Dithianon의 감귤 잎 부착량 비교

  • Jeon, Hye-Won (Department of Agro-food Safety, National Academy of Agriculture Science, Rural Development Administration) ;
  • Hong, Su-Myeong (Department of Agro-food Safety, National Academy of Agriculture Science, Rural Development Administration) ;
  • Hyun, Jae-Wook (Citrus Research Institute, National Institute of Horticultural & Herbal Science, Rural Development Administration) ;
  • Hwang, Rok-Yeon (Citrus Research Institute, National Institute of Horticultural & Herbal Science, Rural Development Administration) ;
  • Kwon, Hye-Young (Department of Agro-food Safety, National Academy of Agriculture Science, Rural Development Administration) ;
  • Kim, Taek-Kyum (Department of Agro-food Safety, National Academy of Agriculture Science, Rural Development Administration) ;
  • Cho, Nam-Jun (Department of Agro-food Safety, National Academy of Agriculture Science, Rural Development Administration)
  • 전혜원 (농촌진흥청 국립농업과학원 농산물안전성부) ;
  • 홍수명 (농촌진흥청 국립농업과학원 농산물안전성부) ;
  • 현재욱 (국립원예특작과학원 감귤연구소) ;
  • 황록연 (국립원예특작과학원 감귤연구소) ;
  • 권혜영 (농촌진흥청 국립농업과학원 농산물안전성부) ;
  • 김택겸 (농촌진흥청 국립농업과학원 농산물안전성부) ;
  • 조남준 (농촌진흥청 국립농업과학원 농산물안전성부)
  • Received : 2015.09.16
  • Accepted : 2016.02.22
  • Published : 2016.03.31

Abstract

In order to obtain efficient control effect of the pesticide, it is important to ensure uniform adhesion to the desired plant parts at the right time. Pesticide spray method (application technology) is an important factor affecting the efficacy and crops persistent expression. The aim of this study was to develop an efficient system to investigate the coating weight distribution of citrus leaves due to the difference between the nozzle and spray sprinkler system using dithianon used in citrus scab. Other An, engine type sprayer was used as the control. Speed sprayer and different sprinklers were wsed to way the deposit amounts of dithianon on citrus leaves. The test was conducted at the National Institute of Horticultural Herbal Science Citrus Research Station, located in the circle citrus Jeju Island. In order to examine whether the citrus orchard spray and the evenl on the whole, dithianon (43% flowable 1000-fold dilution) was sprayed, filter paper and leaves were analyzed by the height as top, middle, bottom. Speed sprayer the was most effective on depositing at the middle position, of the leaves. All other sprays the leaces except the dry mist sprinkler were not effective enough to deposit on the back sides. To achieve more deposits on the high position leaves, an improve ment in the nozzle and an efficient power system of sprayer were needed.

농약의 효율적인 방제효과를 얻기 위해서는 적절한 시기에 원하는 작물체의 부위에 균일하게 부착되도록 하는 것이 중요하다. 농약 살포기술(application technology)은 노즐의 형태 및 종류와 같은 미세 조절이 가능한 기계적인 인자가 약효 발현과 작물 잔류성에 영향을 미치는 중요한 요인으로 작용하고 있다. 본 연구에서는 감귤의 더뎅이병에 사용되는 디티아논 액상수화제를 이용하여 감귤 과원에서 사용중인 약제 살포방식 차이에 따른 감귤 잎의 부착량 분포도를 조사하여 살포 방식의 효율성을 비교하였다. 이를 위해 기계식 살포기를 대조구로 하고 노즐 및 살포 방식에 변화를 준 sprinkler 살포시스템 및 speed spray 분사 방법에 대한 감귤잎 부착량을 비교 평가하였다. 시험은 제주도에 위치한 감귤시험장 감귤과원에서 진행하였으며, 감귤잎의 높이 위치별 부착량, 전후면 부착량을 알아보기 위하여 디티아논 43% 액상수화제 1,000배 희석 액을 살포한 후 filter paper와 나뭇잎을 상, 중, 하로 높이로 채취하여 실험에 사용하였다. Speed spray 방식이 engine type spray 방식보다 부착량 및 부착균일성 우수하였고, 모든 살포방식이 잎 뒷면의 부착량을 증가 할 수 있는 방식으로 개선되어야 하며 감귤의 상부 위치의 부착량 평가에서는 마른안개 sprinkler 방식이 가장 우수하였다.

Keywords

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