Single Nozzle Sprayer Calibration

Step 1: Establish a calibration plot that is exactly:

18.5 feet wide X 18.5 feet long

Step 2: Spray the calibrated plot uniformly with water, noting the number of seconds required:

Time Required = ______ seconds.

Step 3: Spray into a bucket for the same number of seconds.

Step 4: Measure the number of ounces of water in the bucket:

Volume Sprayed = ______ ounces

Step 5: The number of ounces collected from the bucket is equal to the number of gallons per acre the sprayer is delivering:

Gallons Per Acre (GPA) = _______

Adding the Correct Amount of Herbicide to the Tank for Liquid Herbicides

Step 6: Record sprayer output in gallons per acre (calculated in Step 5).

Output (volume) = _______ GPA

Step 7: Determine volume of full spray tank.

Tank volume = _______ gallons

Step 8: From the herbicide label determine amount of herbicide concentrate to apply per acre. ________ Herbicide per Acre (ounces or pints)

Liquid Conversions: Tbl = Tablespoon; oz = ounces; pts = pints; gal = gallon

2 tablespoons = 1 ounce 8 ounces = 1 cup 16 ounces = 1 pint 2 cups = 1 pint