烟田中使用不同喷雾器的农药沉积分布研究

Distribution of Pesticide by Different Vaporizers in Tobacco Field

[目的]比较不同喷雾器以及喷头对农药有效利用率和施药效率的影响。[方法]采用诱惑红作为农药喷雾的示踪剂,分析了4种喷雾器及喷头在田间喷雾下的雾滴大小、施药效率、叶片农药的沉积回收率和雾滴田间分布均匀性。[结果]农药的有效利用率方面表现为电动喷雾器>机动喷雾器>手动喷雾器>手动弥雾器;施药效率方面表现为机动喷雾器>电动喷雾器>手动弥雾器>手动喷雾器;农药雾滴田间分布均匀性方面表现为电动喷雾器最好,其余都较差。[结论]为新型植保器械的推广应用提供了理论依据。

[Objective] The pesticide effective utilization rate and the spraying efficiency of four sprayers with different spray nozzles were compared.[Method] Using the fancy red as the pesticide spray tracer,the field spray droplet size,spraying efficiency,leaf deposition of pesticides recoveries and droplet field uniformity of the distribution of four sprayers with different spray nozzles were analyzed.[Result] The utilization rate of pesticide showed as electric sprayer 〉 motor sprayer 〉 hand sprayer 〉 manual mist sprayer;the spraying efficiency showed as motor sprayer 〉 electric sprayer 〉 manual mist sprayer 〉 hand sprayer;the electric sprayer had the best droplet field uniformity of pesticide,while the others were poorer.[Conclusion] The research provides theoretical basis for the popularization and application of new plant protection machines.