湖北农业科学 ›› 2026, Vol. 65 ›› Issue (1): 73-77.doi: 10.14088/j.cnki.issn0439-8114.2026.01.013

• 植物保护 • 上一篇    下一篇

适宜药液量和助剂对植保无人机喷雾雾滴沉积及防治水稻稻瘟病药效的影响

杨淑兰1, 钟国华2, 张扬1, 杨文喜1, 卢翔宇1, 罗燕梅1, 罗景升1   

  1. 1.广西化工研究院有限公司,南宁 530001;
    2.华南农业大学植物保护学院,广州 510642
  • 收稿日期:2025-08-11 出版日期:2026-01-25 发布日期:2026-02-10
  • 通讯作者: 杨淑兰(1987-),女,广西南宁人,高级工程师,硕士,主要从事农药肥料的研发及推广工作,(电子信箱)340687150@qq.com。
  • 作者简介:杨淑兰(1987-),女,广西南宁人,高级工程师,硕士,主要从事农药肥料的研发及推广工作,(电子信箱)340687150@qq.com。
  • 基金资助:
    广西重点研发计划项目(桂科AB21220016)

Effects of suitable spray volume and adjuvant on droplet deposition of plant protection UAV and control efficacy against rice blast disease

YANG Shu-lan1, ZHONG Guo-hua2, ZHANG Yang1, YANG Wen-xi1, LU Xiang-yu1, LUO Yan-mei1, LUO Jing-sheng1   

  1. 1. Guangxi Research Institute of Chemical Industry Co., Ltd., Nanning 530001, China;
    2. College of Plant Protection, South China Agricultural University, Guangzhou 510642, China
  • Received:2025-08-11 Published:2026-01-25 Online:2026-02-10

摘要: 通过植保无人机喷雾施药方式,开展400 g/L戊唑醇·咪鲜胺水乳剂(EW)田间试验,研究不同药液量及助剂添加对雾滴在水稻冠层沉积量、沉积密度、农药利用率及稻瘟病防治效果的影响。结果表明,在推荐制剂用量525 mL/hm2条件下,药液量为22.5 L/hm2和30 L/hm2的处理,其在水稻冠层中雾滴沉积量、沉积密度、农药利用率及防治效果整体上优于药液量15 L/hm2的处理;添加助剂可显著改善上述各指标,尤其在药液量22.5 L/hm2并配合助剂(添加量为337.5 mL/hm2)条件下,雾滴沉积效果与农药利用率表现良好,最高农药利用率达52.39%,2次施药后对稻瘟病的防治效果稳定在81%以上,且与药液量30 L/hm2的处理防治效果差异不显著。在实际防治中,推荐采用药液量22.5 L/hm2并添加相应比例助剂的作业模式,可在保证防治效果的同时,提高施药效率与经济生态效益。

关键词: 植保无人机, 药液量, 雾滴沉积, 稻瘟病, 防治效果

Abstract: Field trials were conducted using a plant protection UAV for spraying 400 g/L tebuconazole · prochloraz emulsion in water(EW), to investigate the effects of different spray volumes and adjuvant addition on droplet deposition, droplet density, pesticide utilization rate, and control efficacy against rice blast in rice canopies. Results showed that, under the recommended dosage of 525 mL/hm2, the droplet deposition, density, pesticide utilization rate, and control efficacy were generally better with spray volumes of 22.5 L/hm2 and 30 L/hm2 compared to 15 L/hm2. Adjuvant addition significantly improved all measured parameters. Particularly under the condition of 22.5 L/hm2 spray volume combined with adjuvant (added at 337.5 mL/hm2), droplet deposition performance and pesticide utilization were favorable, with the highest pesticide utilization rate reaching 52.39%, and control efficacy against rice blast remaining above 81% after two applications, showing no significant difference from the 30 L/hm2 treatment. For practical application, the spray volume of 22.5 L/hm2 with the corresponding proportion of adjuvant was recommended, which could ensure control efficacy while enhancing application efficiency and comprehensive benefits.

Key words: plant protection UAV, spray volume, droplet deposition, rice blast, control efficacy

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