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ryann ryann
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4 years ago
You are applying an airborne pesticide on a field of canola. The air temperature is 25°C and the relative humidity is 55%. Your boom height is 3.4 meters and the wind is blowing at 4.8 km/h.

Your choice of droplet size will have an impact on how far a pesticide will drift. You can minimize wind drift of airborne pesticides toward nearby water, crops, livestock or residential areas by changing the droplet size.


What effect conditions like wind speed, temperature, relative humidity, and height of release has on drift. Describe how spray drift can be controlled by setting droplet sizes.
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#1
Staff Member
4 years ago
Droplet diameter in microns  Time required to fall 3.4m  Distance droplets travel

                5                                                             66 minutes                                          4.8km
               20                                                            4.2 minutes                                          112 m
              100                                                           10 seconds                                           4.5 m
              240                                                           6 seconds                                             2.8 m
             400                                                             2 seconds                                            259 cm
             1000                                                            1 seconds                                            143 cm
ryann Author
wrote...
#2
4 years ago
thanks
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