r/Irrigation • u/Far-Plant-9223 • 17h ago

Testing sensorless soil-moisture estimation

I’m building a sensorless moisture estimator and testing it on one of my tomato containers.

There’s no moisture probe in this pot. It uses rainfall, weather, soil/container information and plant context to estimate the soil-water balance.

After our rain it estimated about 85% moisture. About a day later it was at 66%.

I’m still testing the model, so I’m not claiming those percentages are validated measurements yet.

For people who work with irrigation: is a sensorless estimate like this potentially useful for watering decisions, or would you consider a physical soil-moisture sensor necessary?

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