Understanding Soil Moisture
Tension Soil moisture tension is the measurement of how strongly water is held in the soil. Water is held in the soil by capillary forces as well as the attraction of the water molecule to itself and to electrically charged clay particles. Soil moisture tension is measured in units of pressure (centibars or kilopascals). The tension at which irrigation is recommended depends on the soil and crop, but typically falls somewhere between 30 and 50 centibars*. * 1 centibar = 1 kPa
Scheduling irrigation based on how hard plant roots are working to draw
water from the soil Read More