Is a mulch layer assumed in ET calculations?

Just curious… When Rachio calculates evapotranspiration rates for a zone, does it assume that there is a layer of mulch over the soil?


@lourssale, great question. I’ll need to review the Crop Coefficient equation’s inputs, but I do not recall any variable for mulch/thatch.

Our base Crop Coefficients for grass are listed below; note, the valves vary by month as the growing season changes throughout the year.

Hope this helps. Will get back to you on the mulch question. :smile: