What is Matric Potential?

Matric potential is a measure of the energy with which water adheres to soil particles. It is fundamental to understanding water availability for plants and optimizing irrigation systems. Through resistance sensors, you can indirectly but reliably estimate changes in soil moisture.

Main Components

• Resistance sensors at 30 cm: Measurement of matric potential in deep rooting zone
• Resistance sensors at 15 cm: Monitoring of surface root growth zone
• UV sensor: Measurement of UV index and accumulated ultraviolet radiation
• Data integration: Correlation between UV radiation, soil moisture, and crop behavior

Use Cases

• Determination of optimal irrigation timing based on quantitative data
• Reduction of water consumption in sensitive crops
• Analysis of water stress in plants
• Agroclimatic research in tropical transition zones
• Prediction of diseases associated with excess or water deficit
• Assessment of UV radiation effects on crops

Measurement Ranges

• Soil resistance: Wide range 0 to 200 kΩ (convertible to matric potential)
• Depths: 15 cm and 30 cm (primary and secondary root layers)
• UV Index: 0-16+ (international standard scale)
• Accuracy: ±2-5% under field conditions
• Sampling frequency: 20 minutes between records