Psychrometric Measurement of Soil Water Potential without Precise Temperature Control1
- S. L. Rawlins and
- F. N. Dalton2
A theoretical analysis shows that by imposing certain boundary conditions it should be possible to eliminate the major effects of temperature fluctuation on psychrometric measurements of soil water potential. Tests on a psychrometer constructed to meet these boundary conditions were carried out on a soil column in a greenhouse. Although diurnal fluctuation of soil temperature was as great as 5C, water potential was measured with an apparent accuracy of ±0.5 bars throughout two irrigation cycles.Please view the pdf by using the Full Text (PDF) link under 'View' to the left.
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