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WP4C
FURTHER READING
Brye, K. R. (2003) "Long-Term Effects of Cultivation on Particle Size and Water-Retention
Characteristics Determined Using Wetting Curves." Soil Science 168 (7): 459–468.
Campbell, Eric C., Gaylon S. Campbell, and Wayne K. Barlow (1973). "A Dewpoint Hygrometer
for Water Potential Measurement." Agricultural Meteorology, 12: 113–121.
Gee, G. W., M. D. Campbell, Gaylon S. Campbell, and J. H. Campbell (1992). "Rapid
Measurement of Low Soil Water Potentials Using a Water Activity Meter." Soil Science
Society of America Journal 56(4): 1068–1070.
METER Group, Inc. "How To Create a Full Moisture Release Curve Using the
WP4C and HYPROP." https://www.metergroup.com/environment/articles/
create-full-moisture-release-curve-using-wp4c-hyprop/
Papendick, R. I. and Gaylon S. Campbell (1981). "Theory and Measurement of Water
Potential." In Water Potential Relations in Soil Microbiology, SSSA Special Publication 9,
edited by J. F. Parr, W. R. Gardiner, and L. F. Elliott, 1–22. Madison: Soil Science Society
ofAmerica.