What is the first step in Boom sprayer calibration refill method 1?

• A. Measure effective spray width of boom
• B. Divide width in 43,560 to determine the distance the sprayer must travel to cover an acre. Then measure 1/10th or 1/16th of this on the ground
• C. Fill tank with water to known reference line
• D. Adjust pressure and speed to speed in the field

Answer: (A)

Knowing the exact spray width is essential because it defines how much ground a single pass covers. This width determines the area-per-pass you’ll be applying and is the foundation for converting the amount of liquid you use into a rate per acre. Once you’ve established the effective width, you can calculate how far the sprayer must travel to cover an acre (using 43,560 square feet) and then mark off a representative ground segment to test. The other steps— filling the tank to a known reference line and adjusting pressure and speed to the desired field speed—rely on that width to translate the observed flow into an accurate application rate.