What’s the difference between agricultural drones and aircraft spraying?

What’s the difference between agricultural drones and aircraft spraying?Advantages of agricultural UAV relative to aircraft spraying 1. Precision spraying operation Small fixed-wing and small helicopters used in agriculture fly fast and high altitude during spraying, resulting in serious drug drift. The UAV can hover for more targeted high-precision spraying, low operating height (generally 1.5m to 3.5m from the crop surface), slow flight speed (about 3m/ S-7m /s), and dynamic control of the nozzle and flow rate. At the same time, the multi-spectral lens mounted on the drone can realize the collection and supervision of farmland operation information, generate agricultural prescription charts according to the growth trend of crops, and guide the operation of agricultural drones. When spraying pesticides with drones, it can be “targeted” and only spray the land where pesticides need to be sprayed, thus further reducing the impact on the environment. In terms of precision spraying, the application case of Silk Road thistle is very famous in recent years.