Can my field have unequal zones?

Yes. Each zone has its own area, inputs and water calculation. The configured zones must cover the field’s agricultural area.

A little more detail

Use zones for meaningful differences in soil or delivery. Do not assume four equal quarters because the demonstration uses them. Review each zone’s amount and runtime before irrigation. Switching fields changes to a separate configuration and water history.

Scientific and source detail

An area-weighted summary describes the field, but it does not replace the independent zone calculations.