Soil moisture monitoring for irrigation
Most farmers I talk to don’t need to be sold on automation. They’ve seen the controller boxes at the trade show. They’ve watched their neighbor check soil moisture from a phone. They get it. What they actually need is someone…
A soil moisture sensor telling you the field is at 35% when it’s actually at 15%. A flow meter reporting 12 GPM through a zone you know pulls 8. A pressure transducer reading 45 PSI at the head of a…
A soil moisture sensor sitting in the ground is about as useful as a thermometer you never look at. The whole point of buying sensors and hooking them up to a controller is that the system makes decisions for you.…
Soil moisture sensors are everywhere in irrigation these days. I’ve seen farms with a dozen Watermark sensors spread across different zones, greenhouses running capacitance probes in every grow bag, and orchards with tensiometers at three depths per block. The hardware…
Most farmers who try soil moisture monitoring start the same way: buy one or two sensors, stick them in the ground, check the readings for a couple weeks, then forget about them. I’ve seen this pattern enough times to know…
Most farmers keep irrigation records the way they’ve done it for decades: glance at a pressure gauge in the morning, make a mental note about which zone ran yesterday, and maybe scribble something in a notebook that hasn’t been opened…
Most farmers I talk to irrigate on gut feeling. They walk the field, squeeze a handful of soil, look at the sky, and decide. It works until it doesn’t. A hot week you didn’t catch, a rain that came after…
You can drop $2,000 on a set of research-grade soil moisture sensors and still get readings that steer you wrong. A vegetable grower in central California installed six sensors across a 20-acre tomato field, followed the data religiously, and ended…
Soil moisture sensors aren’t new. Farmers have been sticking tensiometers in the ground for decades. What’s changed in the last few years is that you can now network a dozen sensors across a 50-hectare farm, check every reading from your…
A farmer in central California told me last year that he spent $4,200 on soil moisture sensors for his almond orchard and saved $11,000 in water costs within the first season. That’s a return most investments can’t touch. But I’ve…
