The purpose of this manual is “to provide guidance for field scientists who are not instrumentation experts but who wish to determine soil water content as part of their work.” It is targeted at those conducting projects in developing countries.

The first chapter covers basic information on soil water content and on measurement accuracy, precision, and calibration. The remaining chapters discuss various types of soil water–tension sensors ranging from gravimetric and volumetric soil sampling, tensiometers, electrical resistance sensors, and neutron moisture meters to the more complex dielectric sensors such as TDR systems, TRIME system, capacitance sensors (Diviner 2000, Environscan,...

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