Droplet Size 조절을 통한 항공살포 농약의 비산 저감: Lecithin 보조제의 효과
Reduction of Drift in Aerial Pesticide Application through Regulation of Droplet Size: Effect of Lecithin Adjuvant
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초록
This study analyzed the effect of lecithin adjuvant on droplet size and drift reduction during pesticide application, and evaluated its effectiveness by predicting drift distances using the DRIFTSIM model. A flat fan nozzle (XR8002) was used to compare the droplet sizes of water and lecithin adjuvant mixtures, measured with a laser diffraction system. Droplet size parameters (DV10, DV50, DV90) were compared, and the drift distance for each solution was predicted using the DRIFTSIM model. The results showed that the lecithin adjuvant significantly increased droplet size compared to water. At 40 psi, the DV10, DV50, and DV90 of the lecithin mixture increased by 42.7%, 35.4%, and 35.5%, respectively, compared to water. This trend was also observed at higher pressures. Drift predictions indicated that the lecithin adjuvant mixture reduced drift distances by up to 35% compared to water. In particular, droplets smaller than 100 μm, which are more prone to drift and evaporation, were significantly reduced in the lecithin mixture, demonstrating its effectiveness in drift reduction. Additionally, lowering the spray height from 2 m to 1 m further shortened the drift distance, emphasizing the importance of height control in drift reduction. Overall, lecithin adjuvant can be an effective tool for increasing droplet size and reducing pesticide drift, contributing to minimizing environmental impact and enhancing pesticide efficiency during application. These findings suggest that lecithin adjuvant has potential as a sustainable pesticide management strategy in agricultural practices.
Abstract
This study analyzed the effect of lecithin adjuvant on droplet size and drift reduction during pesticide application, and evaluated its effectiveness by predicting drift distances using the DRIFTSIM model. A flat fan nozzle (XR8002) was used to compare the droplet sizes of water and lecithin adjuvant mixtures, measured with a laser diffraction system. Droplet size parameters (DV10, DV50, DV90) were compared, and the drift distance for each solution was predicted using the DRIFTSIM model. The results showed that the lecithin adjuvant significantly increased droplet size compared to water. At 40 psi, the DV10, DV50, and DV90 of the lecithin mixture increased by 42.7%, 35.4%, and 35.5%, respectively, compared to water. This trend was also observed at higher pressures. Drift predictions indicated that the lecithin adjuvant mixture reduced drift distances by up to 35% compared to water. In particular, droplets smaller than 100 μm, which are more prone to drift and evaporation, were significantly reduced in the lecithin mixture, demonstrating its effectiveness in drift reduction. Additionally, lowering the spray height from 2 m to 1 m further shortened the drift distance, emphasizing the importance of height control in drift reduction. Overall, lecithin adjuvant can be an effective tool for increasing droplet size and reducing pesticide drift, contributing to minimizing environmental impact and enhancing pesticide efficiency during application. These findings suggest that lecithin adjuvant has potential as a sustainable pesticide management strategy in agricultural practices.
참고문헌 (18)
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