✦ LIBER ✦
New circuitry for measuring soil water matric potential with moisture blocks
✍ Scribed by S.M. Goltz; G. Benoit; H. Schimmelpfennig
- Publisher
- Elsevier Science
- Year
- 1981
- Weight
- 350 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0002-1571
No coin nor oath required. For personal study only.
✦ Synopsis
A low power electrical resistance moisture block measurement circuit was built that linearizes the block resistance--matric potential log--log relationship for better resolution in the higher water potential range and also eliminates the problem of block and lead wire capacitance. Using this circuit, block calibrations in four soils corresponded closely. A comparison is presented of matric potentials measured throughout a growing season by moisture blocks and this circuit and by two independent methods.