Tensiometer has been long time used by growers to measure soil moisture and make irrigation decisions. It measures the tension that the plants roots need to apply to extract water from the soil. Below 20 kpa indicates wet soil while above 40 kpa indicates dry soil. Unlike capacitive soil moisture sensor tensiometer doesn’t depend on the soil type and delivers stable and reliable data which can be directly used for irrigation automation.
How it works
Tensiometer Agriotens is installed so that it’s ceramic probe is located at the root area of plants. Shortly after irrigation cycle is finished, Agriotens registers maximum soil moisture, then soil slowly dries out due to evaporation and transpiration of the water. Agriotens measures the level of moisture every 10 – 30 minutes and sends data to the cloud platform Agriocommander. Agriocommander analyzes and visualizes the data. This analysis is used to precisely calculate the irrigation time for the next cycle to archieve the required amount of soil moisture.
Advantages
Works in all soil types without calibration
Reliable data for irrigation
Can be used autonomously with small e-paper display or remotely by connecting to the valve controller Agriovalve or both
Requires minimum maintenance