Water potential describes the force that drives water movement. It is the most fundamental and essential measurement in soil physics.

Water potential describes the force that drives water movement. It is the most fundamental and essential measurement in soil physics.
Unfortunately, it’s also a tricky thing to measure. The chart on the right (click on it to view the full image) shows range and accuracy for available instruments and sensors. Find more information about each sensor’s advantages and limitations on the individual product pages. For more information on water potential theory, see the resources list on the right.

Water potential describes the force that drives water movement. It is the most fundamental and essential measurement in soil physics.

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