Soil Phosphorus Tester for Plants | Yieryi Large range 0-1999mg/kg No—it is estimated from conductivity

No—it is estimated from conductivity

That is also why we tell you which readings are measured and which are estimated—honesty about a tool's limits is what makes the rest worth trusting

garden enthusiasts

Yes—it is a top pick for potted herbs and houseplants

Soil Phosphorus Tester for Plants | Yieryi Large range 0-1999mg/kg No—it is estimated from conductivityA soil phosphorus tester reads the available phosphorus (P) in your soilthe nutrient behind strong roots, flowering, and fruit set. This single nutrient meter gives you a P reading in seconds, so you can tell whether to add phosphorus or hold off, without mailing a sample to a lab. Read it as a trend tool. The phosphorus figure is a directional reference estimated from conductivity, not a lab measurementuseful for spotting when P is running low and