The maximum spread width of each spreader is only obtainable in Ideal Conditions. Consideration of the wind speed and field terrain must be taken into account.
In more common, Moderate, Conditions Single Disc spreaders will only spread reliably to between 18m and 20m.
Information provided in the calibration tool is intended as a guide, settings may vary depending on individual machine used. Always ensure your machine is calibrated before use. If in doubt contact the manufacturer. Where possible, slug pellets should only be used as part of an integrated approach to slug control.