关键词: 番茄, 生长期, 常温烟雾机, 作业方式, 雾滴覆盖率, 农药利用率

Abstract: In order to optimize the operation ways and parameters of cold aerosol sprayer in the greenhouse, this paper sprayed the tomato canopy at different growth stages by two operation ways of inter-row and corridor, and the indexes such as droplet deposition distribution, pesticide deposition, pesticide ground loss and pesticide utilization rate were measured. The results showed that: in terms of droplet deposition distribution, pesticide deposition, pesticide ground loss and pesticide utilization rate and other indexes, the inter-row operation was better than the corridor operation at different growth stages of tomato, and the leaf front was better than the leaf back. When the pest control in the greenhouse required a large amount of spray and a high droplet coverage rate, inter-row operations should be carried out; when the preventive operation of crops in the greenhouse or pesticide spraying had good internal absorption and did not require a high droplet coverage rate, the corridor operation can be carried out, and the nozzle angle could be adjusted within ±15° to ensure the uniform distribution of droplet deposition in front, middle and back of the canopy. This study could provide reference for the plant protection operation of the facility scaffolding type vegetable.

Key words: tomato, growth stage, cold aerosol sprayer, operation way, droplet coverage rate, pesticide utilization rate