Unpowered Measured Irrigation Controller
Universal Measured Irrigation Controller
Measured Irrigation
A major advance in drip irrigation
Unpowered Irrigation Controller
Adjusting the irrigation frequency by adusting the float
Bernie Omodei demonstrates measured irrigation at Sophie's Patch Open Day 2016
Unpowered Irrigation Controller
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Unpowered Terracotta Irrigation Controller
Measured irrigation saves more water than a conventional irrigation controller
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What is measured irrigation?
Measured irrigation is an irrigation scheduling technique.
For conventional drip irrigation systems, the volume of water delivered by a dripper during the irrigation event depends upon the flow rate and the duration of the irrigation event. But for measured irrigation the volume of water delivered by a dripper during the irrigation event is controlled directly and is independent of flow rate and time.
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Measured irrigation can be completely automatic with the water usage rate directly proportional to the net evaporation rate (evaporation minus rainfall).
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Measured irrigation is usually gravity feed and can be automated without access to mains water or mains power, and so there are no ongoing costs for mains water or electricity.
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Measured irrigation is well suited to smallholders in poorer countries. At almost no cost, a smallholder can upgrade gravity feed drip irrigation to measured irrigation using a bucket.
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You can upgrade any irrigation system (drip or sprinkler, pressurised or gravity feed) to a fully automated measured irrigation system
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You can upgrade a gravity feed drip irrigation system with a farm pond to a fully automated measured irrigation using the Automation Kit for Farm Pond Irrigation. Water is pumped automatically from the farm pond to a header tank.
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Measured irrigation is simple and low tech and hence there are fewer things to go wrong – ideal for smallholders with limited access to technical and maintenance support.
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