‘The amount of work that must be done per unit quantity of pure water in order to transport reversibly and isothermally an infinitesimal quantity of water from a pool of pure water at a specified elevation at atmospheric pressure to the soil water’. (Difference between the energy state of soil water and that of pure [...]
Field-installed tensiometers are generally equipped with pressure gauges or mercury manometers. These read-out devices require much maintenance, while the cost of gauges is high when used in large quantities. Tensiometers are useful instruments for measuring soil water status in the field. Tensiometers measure soil water potential or tension, which is a measure of the amount [...]
English