Why use 10 zones for SWAT MAPS zone maps?

Why use 10 zones for SWAT MAPS zone maps?

We take pride in high resolution maps so 10 zones are required. This allows enough flexibility to vary rates of product across fields with significant variability. We know some fields with minimal variability may require less than 10 different rates of a product. In those cases, the same rate may be applied to multiple zones. On rare occasions, for small fields with minimal variability, the zone map may contain less than 10 zones.

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