Calibration is the process of which of the following?

• A. Measuring the horsepower of your sprayer
• B. Measuring and adjusting the amount of pesticide applied by the equipment
• C. Measuring the size of the field
• D. Measuring the boom length

Answer: (B)

Calibration is the process of determining and setting the actual pesticide application rate produced by the spray equipment. You measure how much liquid comes out over a given time at a specific pressure and nozzle setup, relate that to your ground speed, and then adjust flow, pressure, nozzle choice, or speed to hit the label-required rate. This ensures the right amount is applied per area, preventing under- or over-application and helping with safety, effectiveness, and regulatory compliance. It’s not about the sprayer’s horsepower, the size of the field, or the boom length, which relate to other aspects of the system rather than the actual application rate.