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2. Parshall flume - Wikipedia

   en.wikipedia.org/wiki/Parshall_flume

   Parshall flumes (right) alongside other types of flow meters. The Parshall flume is an open channel flow-metering device that was developed to measure the flow of surface water and irrigation flow.

3. Irrigation controller - Wikipedia

   en.wikipedia.org/wiki/Irrigation_controller

   For example, the typical professional controller will calculate the actual flow rate running in the system when a specific zone is operated, compare this to a pre-configured required amount, and adjust the irrigation process if deviation from the zone's flow rate is detected; This mechanism is called "Flow monitoring", and can prevent ...

4. Leaf sensor - Wikipedia

   en.wikipedia.org/wiki/Leaf_sensor

   Precision irrigation monitoring using the SG-1000 leaf sensor and commercial data loggers for irrigation control has been achieved in recent years. [12] Researchers have found a direct correlation between leaf thickness and Relative Water Content (RWC) of plant leaves using the SG-1000 Leaf Sensor under field conditions.

5. Irrigation - Wikipedia

   en.wikipedia.org/wiki/Irrigation

   Micro-irrigation uses less pressure and water flow than sprinkler irrigation. Drip irrigation delivers water directly to the root zone of plants. Subirrigation has been used in field crops in areas with high water tables for many years. It involves artificially raising the water table to moisten the soil below the root zone of plants.

6. Dethridge wheel - Wikipedia

   en.wikipedia.org/wiki/Dethridge_wheel

   Dethridge wheel in 1936 – Victoria Australia. The Dethridge wheel is an irrigation tool that was invented in 1910 by John Stewart Dethridge (1865–1926). [1] It works in a similar way to a traditional water wheel and rotates as water passes through its vanes.

7. Soil moisture - Wikipedia

   en.wikipedia.org/wiki/Soil_moisture

   Soil water can be measured in situ with soil moisture sensors or can be estimated at various scales and resolution: from local or wifi measures via sensors in the soil to satellite imagery that combines data capture and hydrological models. Each method exhibits pros and cons, and hence, the integration of different techniques may decrease the ...