Trial of Membrane block electrical resistance unit for continuous measurement of soil moisture

R. G. SHARMA

doi:https://doi.org/10.29321/MAJ.10.A04022

Madras Agricultural Journal

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Trial of Membrane block electrical resistance unit for continuous measurement of soil moisture

Author: R. G. SHARMA,

p-ISSN: 0024-9602, e-ISSN:2582-5321, Vol: 48, Issue: sep-sep,

DOI:https://doi.org/10.29321/MAJ.10.A04022

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Abstract

The various types of electrical resistance units such as gypsum block, nylon, nylon coated with gypsum and fibre-glass units as well as others have been developed in recent past and used for moisture determination with varying degrees of success. These units are similar in principle. The electrical resistance of the block is inversely proportional to its moisture content and so the electrical resistance. of the block in equilibrium with the soil moisture is a measure of the soil moisture itself which can be read on previously prepared moisture resistance calibration curve.

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