Department of Soil&Crop Sciences

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Calibrating a Rotary Spreader

Bell-shaped curve pattern

Pour the contents of each catch pan into a clear cup of some sort - put the center catch pan contents in the center cup and move outward in each direction to get an idea of the distribution pattern for the fertilizer spreader.

This is the desired pattern (bell-shaped) for a rotary spreader.

Designed by Jason L. Gray.