다축형 사과원에서 타워형 방제기의 RPM, 주행 속도 및 송풍 조건에 따른 방제 효율 및 비산 특성 분석

Abstract

In this study, we evaluated the spraying efficiency and drift characteristics of tower sprayers in multi-leader apple orchards and proposed optimal spraying standards. This research addresses the challenges of pesticide drift and uneven droplet distribution, which impact spraying precision and environmental sustainability. The results demonstrated that disabling the air-assist significantly reduced pesticide drift, while the combined effect of revolutions per minute (RPM) and driving speed on spraying efficiency and drift patterns was significant. Air-assist was shown to increase droplet drift beyond the fifth row, whereas disabling it substantially mitigated this effect. Furthermore, droplet size and distribution varied considerably under different air-assist conditions, emphasizing the need for tailored spraying strategies in planar orchard layouts. The results of this study provide essential insights for improving spraying efficiency and minimizing environmental impacts, thereby supporting the development of precision spraying technologies and sustainable orchard management practices.