2021/01/01 by Volodymyr Bulgakov, Bulgakov, Volodymyr, Jü̈ri Olt +13
Agricultural and Biological Sciences · Engineering · #Aerosol Filtration and Electrostatic Precipitation #Fluid Dynamics and Heat Transfer #Plant Surface Properties and Treatments #air #article #drift #droplet #fluid #pesticides #pressure #spray dispersion
paper · doi:10.15159/jas.21.36
openalex publication_date 2021/01/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Improved application efficacy of a plant protection products by using a pneumatic device to change the dispersion of spray droplets is depended on the intensity of crosswind. The laboratory investigations of the spraying process of plants by means of the nozzles of a pneumatic system determined the quality indicators of pressure in the injection process of 0.4 MPa – the droplet coating density of 19–46 pcs cm2 –1 for the weighted mean droplet diameters (WMD) in the other experimental variants was within 304–543 μm. These indicators were compared with those for the standard, anti-drift and air injection nozzle types in which the droplet coating density was 23–59 pcs cm2 –1 and the weighted mean droplet diameters (WMD) were in the range of 350 to 485 μm. An analytical dependence was obtained of the influence of the lateral airflow and air pressure in the pneumatic system upon the amount of the deposited spray liquid.