Formulas for Spray Nozzle GPM (Gallons Per Minute) & GPA (Gallons Per Acre)

- GPM: Gallons Per Minute
- GPA: Gallons Per Acre
- mph: Miles Per Hour
- W: Nozzle spacing (in inches) for broadcast sprayin
- Spray width (in inches) for single nozzle, band spraying or boomless spraying.
- Row spacing (in inches) divided by the number of nozzles per row for directed spraying.
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