What impact does increasing nozzle spacing typically have on droplet size?

Increasing nozzle spacing generally leads to an increase in droplet size because the liquid is delivered over a wider area, which allows for larger droplets to form as opposed to smaller, more uniform droplets produced with closer nozzle spacing. When nozzles are spaced further apart, the liquid experiences less disruption and turbulence, resulting in a higher likelihood of larger droplets reaching the target area.

This relationship is important in aerial application because the size of the droplets can affect the efficacy of pesticide or nutrient delivery, influencing factors like evaporation, drift potential, and absorption by the target crops. Larger droplets tend to be less prone to drift due to their weight, making them more suitable for certain conditions or application objectives. By understanding this dynamic, applicators can better tailor their nozzle configurations to optimize application effectiveness while minimizing unintended consequences.