Accurate, inexpensive soil moisture sensors make soil volumetric water content (VWC) a justifiably popular measurement, but it may not be the right measurement for every application. Water potential (or soil suction), which measures the energy state of water in soil, explains more about water availability, whether water will move, and where it’s going to go.
Learn what you need to consider before you decide to measure soil moisture. Discover how:
- Intensive variables don’t change with size or situation
- Water content doesn’t predict how water moves
- Water potential defines the comfort level of a plant
- When you should choose water potential or water content
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