HIM electronic sensors for determining leaf wetness

When precipitation comes into contact with vegetation, leaf wetting events are the inevitable consequence. However, the duration of leaf wetting is not only determined by the duration of the precipitation process (rain, dew), but also by various evaporation-regulating atmospheric parameters. In addition, the interception capacity, which depends on the leaf surface structure, is significant, as it determines the maximum amount of water that can accumulate on a leaf before it begins to drip.
Wetting processes play an important role in micrometeorology as well as in phytopathology and ecology; on the one hand, the intercepted water represents a missing input item for the soil water supply, which has an impact on the water balance and thus on the transpiration behaviour of the plants.