Water & Nutrient Management:
Soil Moisture-Based Irrigation Systems
On-Demand Irrigation
Potentially the most water efficient is the on-demand soil moisture-based irrigation system. It is a sensor based system that requires no timer. The irrigation both starts and stops depending on the soil moisture probe reading.
This system is not used in vegetable production, since it can potentially open all irrigation valves in a field at the same time and exceed the available water supply provided by the pump.
This page was last updated on June 15, 2010.
Videos
- Welcome and Outline of Contents
- Timed Irrigation
- Bypass Timer Irrigation
- On-Demand Irrigation
- Irrigation Components
- Soil Moisture Sensors
- Irrigation Sensor Placement
- Application of the System
- Irrigation Sensor Families
- Neutron Probe
- Time Domain Reflectometry
- Capacitance Probe
- Combined Probe
- Frequency Domain Reflectometry (FDR)
- Amplitude Domain Reflectometry
- Phase Transmission
- Time Domain Transmission
- Tensiometer
- Gypsum Block
- Granular Matrix Sensors (GMS)
- Heat Dissipation
- Soil Psychrometer
