When calibrating a spreader, why is it important to consider product particle size and weight?

When calibrating a spreader, considering product particle size and weight is crucial because it directly influences the delivery rate of the product being applied. The size of the particles can affect how they fall through the spreader and how evenly they are distributed across the target area. Heavier particles may require a different setting on the spreader compared to lighter ones, impacting the amount dispensed in a given time frame.

For effective weed control, achieving the correct application rate is essential, as both under-application and over-application can lead to ineffective control or environmental harm. By understanding the characteristics of the product, proper calibration ensures that the desired quantity is applied uniformly, maximizing the effectiveness of the weed control measure while minimizing waste or potential harm to non-target plants and aquatic environments.