laboratory methods do exist as well.
In hydrological and technical applications, data referring to
the moisture oontent is usually required, while for plant
physiology and hydraulic problems, moisture potential
measurements are more important. In agriculture, both
quantities are used.
2.8.114 Soil moisture saturation
Soil is considered "saturated" when all or almost all "pore
space" is filled with water.
Soil moisture potential:approx. 0 - 1 0 KPa
2.8.115 Field capacity (FC)
The amount of water retained against gravity after drainage
of a saturated soil is called field capacity.
Soil moisture potential:approx. 1 0 - 3 0 KPa
2.8.116 Permanent wilting point (WP)
The permanent wilting point describes the soil moisture
status where plants cannot remove soil water fast enough
against capillary forces, to prevent the leaves from wilting.
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