Soil Moisture Monitoring in Sand
Monitoring soil moisture on sandy soils
Soil moisture should be monitored in selected crops to check your irrigation scheduling and to ensure that the soil is not too wet or too dry. Good irrigation practice on sandy soils is to use evaporation based scheduling in combination with soil moisture monitoring to confirm your crop is getting the correct amount of water.
Today there are many types and brands of soil moisture sensors, and while most work adequately in heavier textured soils only a few are sensitive enough to provide useful information in the sandy soils found on the Swan Coastal Plain.
Soil moisture sensors suitable for use in sand must detect small changes in soil moisture and give continuous readings because moisture changes in sand can be rapid. Types of soil moisture sensors that are currently being used in sands include: