> For the complete documentation index, see [llms.txt](https://swatplus.gitbook.io/io-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://swatplus.gitbook.io/io-docs/introduction-1/management-practices/irr.ops/irr_eff.md).

# irr\_eff

The irrigation efficiency is the fraction of water used for irrigation that is available for crop uptake from the soil.