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<p>Effective weed management is essential to maximize crop yield and reduce environmental impacts. Conventional weed control methods often lead to broad-spectrum herbicide applications, increasing both costs and environmental impact. This study investigated the effectiveness and resource efficiency of various weed control methods in sugarcane cultivation, including boom sprayer, drone sprayer, drone site-specific sprayer (SS UAV), knapsack sprayer, and hand-weeding. The results indicate that the SS UAV provides the highest level of environmental sustainability, achieving a weed control efficiency (WCE) of 94.35% while reducing water and herbicide use. Specifically, this method reduced herbicide usage by up to 64% and emissions by a factor of 7.63 compared to the boom sprayer. In larger fields with lower weed densities, the SS UAV demonstrated superior operational efficiency (ha/h) because of its ability to precisely target weed-infested areas. A cost analysis further suggested that the SS UAV could reduce the overall spraying costs by up to 44.30% compared to traditional methods. These results highlight the potential for large-scale adoption in precision agriculture, demonstrating that this method is more environmentally friendly, cost-effective, and efficient in terms of labor, water, and chemical usage.</p>

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Site-Specific UAV Spraying Versus Conventional Weed Control in Sugarcane: Effects on Herbicide Use, Efficiency, and Environmental Impact

  • 期刊论文

  • 发表日期：

    2026年3月23日

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  • Lalita Panduangnat,
  • Jetsada Posom,
  • Santimaitree Gonkhamdee,
  • Arthit Phuphaphud,
  • Kanda Saikaew,
  • Abdul Momin,
  • Okayasu Takashi,
  • Khwantri Saengprachatanarug

摘要

Effective weed management is essential to maximize crop yield and reduce environmental impacts. Conventional weed control methods often lead to broad-spectrum herbicide applications, increasing both costs and environmental impact. This study investigated the effectiveness and resource efficiency of various weed control methods in sugarcane cultivation, including boom sprayer, drone sprayer, drone site-specific sprayer (SS UAV), knapsack sprayer, and hand-weeding. The results indicate that the SS UAV provides the highest level of environmental sustainability, achieving a weed control efficiency (WCE) of 94.35% while reducing water and herbicide use. Specifically, this method reduced herbicide usage by up to 64% and emissions by a factor of 7.63 compared to the boom sprayer. In larger fields with lower weed densities, the SS UAV demonstrated superior operational efficiency (ha/h) because of its ability to precisely target weed-infested areas. A cost analysis further suggested that the SS UAV could reduce the overall spraying costs by up to 44.30% compared to traditional methods. These results highlight the potential for large-scale adoption in precision agriculture, demonstrating that this method is more environmentally friendly, cost-effective, and efficient in terms of labor, water, and chemical usage.