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https://www.measuredirrigation.com/

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. But for measured irrigation the volume of water delivered by a dripper during the irrigation event is independent of the flow rate.

  • Measured irrigation allows you to decide how much water will be delivered to each plant in your garden. Hence you know in advance the total volume of water that will be used during the irrigation event.

  • Measured irrigation can be completely automatic with the irrigation frequency directly proportional to the net evaporation rate (evaporation minus rainfall).

  • 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.

  • 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 and a steel pipe. 

  • Measured irrigation scheduling uses up to 50% less water than programmed irrigation scheduling.

  • ​You can upgrade any drip irrigation system (pressurised or gravity feed) to a fully automated measured irrigation system using the Unpowered Measured Irrigation Controller (no electricity is needed) 

  • You can upgrade a gravity feed drip irrigation system with a farm pond to a fully automated measured irrigation using the DIY Solar Drip Irrigation Kit. Water is pumped automatically from the farm pond to a header tank.