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喷头类型对植保无人机低容量喷雾雾滴在稻田冠层沉积分布及防治效果的影响

引用本文：马钰,贡常委,张韫政,李彬,王学贵.喷头类型对植保无人机低容量喷雾雾滴在稻田冠层沉积分布及防治效果的影响.植物保护学报,2021,48(3):518-527

DOI：10.13802/j.cnki.zwbhxb.2021.2021018

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作者	单位	E-mail
马钰	四川农业大学农学院, 无公害农药研究实验室, 成都 611130 成都绿金高新技术股份有限公司, 成都 610023
贡常委	四川农业大学农学院, 无公害农药研究实验室, 成都 611130
张韫政	四川农业大学农学院, 无公害农药研究实验室, 成都 611130
李彬	成都绿金高新技术股份有限公司, 成都 610023
王学贵	四川农业大学农学院, 无公害农药研究实验室, 成都 611130	wangxuegui@sicau.edu.cn

中文摘要:为减少植保无人机施药过程中的雾滴飘移，提高农药有效沉积率，选用多旋翼植保无人机探讨喷头类型和添加迈飞助剂对10%溴氰虫酰胺可分散油悬浮剂喷雾雾滴的沉积分布及其防治水稻二化螟Chilo suppressalis效果的影响。结果表明：IDK120-01型喷头+1.0%迈飞助剂处理在水稻冠层、中层、底层的雾滴体积中径D_V50均显著高于其他处理，在冠层的单位面积沉积量和农药有效沉积率分别为1.57 μg/cm²和63.89%，也均显著高于其他处理，且单位面积沉积量以冠层最高，中层次之，底层最低；喷头与助剂互作对防飘移率的影响显著，IDK120-01型喷头+1.0%迈飞助剂处理的防飘移率为76.08%，显著高于其他处理，该条件下喷施10%溴氰虫酰胺可分散油悬浮剂对二化螟的防治效果可达74.58%，水稻理论产量为8 905.80 kg/hm²，均显著高于其他处理。表明在溴氰虫酰胺药液中添加1.0%迈飞助剂，采用IDK120-01型喷头进行植保无人机喷洒作业防治水稻二化螟时，能有效减少雾滴飘移，增加单位面积沉积量及农药有效沉积率，提升对二化螟的防治效果。

中文关键词:植保无人机喷雾喷头喷雾助剂防飘移率农药有效沉积率水稻二化螟

Effects of spray nozzles and spray adjuvant on the deposition of droplets of plant protection unmanned aerial vehicle (UAV) in paddy fields and the control efficacy against Asiatic rice borer Chilo suppressalis

Author Name	Affiliation	E-mail
Ma Yu	Biorational Pesticide Research Laboratory, College of Agriculture, Sichuan Agricultural University, Chengdu 611130, Sichuan Province, China Chengdu Green Gold High-Tech Co., Ltd., Chengdu 610023, Sichuan Province, China
Gong Changwei	Biorational Pesticide Research Laboratory, College of Agriculture, Sichuan Agricultural University, Chengdu 611130, Sichuan Province, China
Zhang Yunzheng	Biorational Pesticide Research Laboratory, College of Agriculture, Sichuan Agricultural University, Chengdu 611130, Sichuan Province, China
Li Bin	Chengdu Green Gold High-Tech Co., Ltd., Chengdu 610023, Sichuan Province, China
Wang Xuegui	Biorational Pesticide Research Laboratory, College of Agriculture, Sichuan Agricultural University, Chengdu 611130, Sichuan Province, China	wangxuegui@sicau.edu.cn

Abstract:In order to reduce the droplet drift and increase the effective deposition rate of pesticides during the pesticide application process of plant protection unmanned aerial vehicle (UAV), the multi-rotor UAV was selected for exploring the effect of spray nozzle type and spray adjuvant on the deposition and distribution of spray droplets and the control efficacy of 10% cyantraniliprole oil dispersion (OD) against Asiatic rice borer Chilo suppressalis. The results showed that the droplet D_V50 values of IDK120-01 nozzle plus 1.0% Maifei adjuvant for the canopy layer, middle layer, bottom layer were significantly higher than other treatments, and the deposition amount per unit area (1.57 μg/cm²) and the effective deposition rate of pesticides (63.89%) in the canopy layer were also significantly higher than those of other treatments. Meanwhile, the deposition amount per unit area in the canopy layer was larger than those in the middle and bottom layers. The interaction between the spray nozzle and the adjuvant showed a significant effect on the anti-drift rate, which reached 76.08% for the IDK120-01 nozzle plus 1.0% Maifei additive and was significantly higher than those of other treatments. The control efficacy of 10% cyantraniliprole OD against C. suppressalis reached 74.58%, with a theoretical output of rice up to 8 905.80 kg/hm², which was significantly higher than those of other treatments. Therefore, using UAV to spray the mixture of 10% cyantraniliprole OD plus 1.0% Maifei adjuvant with IDK120-01 nozzles to control C. suppressalis could effectively decrease droplet drift and increase deposition per unit area, and thus promote the control efficacy of 10% cyantraniliprole OD against C. suppressalis.

keywords:plant protection unmanned aerial vehicle (UAV) spray nozzle spray adjuvant anti-drift rate pesticide effective deposition rate Chilo suppressalis

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