Gj. Gaskin et Jd. Miller, MEASUREMENT OF SOIL-WATER CONTENT USING A SIMPLIFIED IMPEDANCE MEASURING TECHNIQUE, Journal of agricultural engineering research, 63(2), 1996, pp. 153-159
A probe has been designed which uses a simplified impedance measuring
system to determine soil water content. Apart from cost and simplicity
, a major advantage is its d.c. voltage output which allows continuous
unattended recording by most field data loggers. The calculated soil
water volumetric fraction (theta(v)) determined by this new method com
pares well with results from the standard neutron probe. (C) 1996 Sils
oe Research Institute