herb cal - Herbicide Sprayer Calibra/on BTNT 304 lab...

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3/25/11 1 Herbicide Sprayer Calibra/on BTNT 304 lab Calibration of sprayers involves the selection of the: Proper nozzle Spraying pressure Sprayer speed Sprayer Calibration
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3/25/11 2 Sprayer Calibration There are two easy methods use to calibrate liquid pesticide applicators: 1. Formula for Nozzle Tip Selection and Calibration 2. The 1/128th Acre Calibration for Row- and Boom- Nozzle Sprayers (Baby bottle method) Sprayer Calibration 1. Formula for Nozzle Tip Selection and Calibration A single formula may be used for both nozzle tip selection and sprayer calibration. The formula is: GPM (per nozzle) = GPA x MPH x W(in inches) 5940 Where: GPM = required output per nozzle in gallons per minute GPA = desired total carrier volume in gallons per acre MPH = desired ground speed in miles per hour W = space between nozzles in inches (or band width if making band applications) Sprayer Calibration A. Nozzle tip size (orifice) selection: Select a nozzle that will give the required flow rate when the nozzle is operated within the recommended pressure range. Recommended carrier volumes (GPA) usually are
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herb cal - Herbicide Sprayer Calibra/on BTNT 304 lab...

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