The Korean Journal of Pesticide Science (농약과학회지)

The Korean Society of Pesticide Science (한국농약과학회)
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Optimization of self-dispersible floating granule (UG) of flucetosulfuron and its herbicidal performance

Flucetosulfuron 수면부상형 입제의 최적화 및 제초효과

  • Published : 2006.03.31
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Abstract

This study was conducted to optimize formulation factors of a self-dispersible floating granule of flucetoaulfuron that can be used at a low application volume (5 kg $ha^{-1}$). SPA and xanthan gum were selected as a binder because blending of them showed good granulation and floatation. Potassium chloride selected as a filler also showed good granulation, floatation and disintegration properties. Among wetters and dispersants, Surfynol 440 gave the best dispersibility The optimum granule size was determined to be 1.0 mm considering floating time and dispersibility. Flucetosulfuron was mixed with the blend of SPA and xanthan gum, potassium chloride, and Surfynol 440 and formulated as a floating self-dispersible granule at 1.0 mm in diameter. Indoor and outdoor field experiments showed that the floating granule of flucetosulfuron performed well, covering long range from the application spot up to 15 m in weed control. Therefore, this floating technology may be used for laborsaving herbicide formulation development and help to reduce workloads for herbicide application.

Flucetosulfuron 수면부상성 입제의 제형요소 및 효능을 최적화하기위한 일련의 실험을 실시하였다. SPA와 xanthan gum을 혼합하여 입제로 제제한 경우 조립성과 부상성이 우수하여 점착제로 선발하였으며 증량제는 조립성, 부상성 및 붕괴성이 우수한 KCl을 선발하였다. 또한 습윤 및 분산제로는 분산성이 가장 우수한 Surfynol 440을 선발하였다. 입제의 입경은 부상성과 분산성을 고려 1.0 mm로 결정하였다. 본 연구로 선발된 부제를 이용해 조제한 flucetosulfuron 수면부상성 입제를 실내 간이 포장 및 야외 포장에서 제초활성을 평가한 결과 잡초를 처리지점에서 15 m에 다다르는 지점까지 우수하게 방제하였다. 따라서 본 수면부상성 입제 기술은 flucetosulfuron을 비롯한 노동력 절감형 제초제 개발에 사용될 수 있을 것으로 기대된다.

Keywords

References

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