Sources & References

Every calculator and guide on IrrigationForge is built on published professional references: the Irrigation Association, ASCE standardized evapotranspiration, university extension services, manufacturer design manuals and government agencies. This page lists them all and where each one is used.

Reference list

How we use sources

Each calculator's formula traces to a published design manual or standard; each page shows its assumptions and links the sources behind its numbers. When industry guidance changes, we update the affected pages and the "Updated" date in the footer. Results remain planning estimates - field verification is always the final step.