What is a characteristic of blower-type spreaders?

Blower-type spreaders are specifically designed to use air pressure as a means to propel granules over a designated area. This characteristic allows for a more controlled and even distribution of materials such as fertilizer or pesticide granules. The mechanism relies on airflow to carry the granules away from the spreader and onto the target area, which is particularly useful in achieving consistent coverage across various terrain types. This operational advantage enhances the efficiency of applying treatments in both terrestrial and aquatic environments, provided that the regulations for aquatic applications are followed.

While other factors such as dust generation or power requirements may be considerations for different types of spreaders, the defining feature of blower-type spreaders is their reliance on air pressure to move materials. Thus, the choice that highlights this specific design feature is the most accurate representation of what characterizes blower-type spreaders.