Salt Leaching Requirement Calculator

Sensitivity of the Salt Leaching Requirement result

If Irrigation water EC changes during the season, calculate a new scenario instead of adjusting ec ratio mentally.

EC ratio: practical constraint

Crop tolerance and drainage determine the actual leaching requirement.

A zero Maximum root-zone EC leaves ec ratio undefined in Salt Leaching Requirement.

Before entering irrigation water ec

EC ratio is calculated from Irrigation water EC and Maximum root-zone EC. Check the Salt Leaching Requirement units before editing.

Irrigation water EC. Default in Salt Leaching Requirement: 0.8 dS/m.

Maximum root-zone EC. Default in Salt Leaching Requirement: 2.5 dS/m.

A practical check for irrigation water ec

Attach a sampling depth and location to irrigation water ec. Soil measurements from different horizons should not be combined without explanation.

From irrigation water ec to ec ratio

The ec ratio ratio uses Irrigation water EC and Maximum root-zone EC in the order shown. Where slope matters, consult Soil Slope Percentage Calculator.

Using irrigation water ec at 0.8 dS/m and maximum root-zone ec at 2.5 dS/m, the example returns 0.320.

Reading ec ratio

EC ratio is the primary output. Before comparing saved cases, confirm that irrigation water ec uses the same unit basis.

Salt Leaching Requirement record to keep

The calculation log for Salt Leaching Requirement needs Irrigation water EC and Maximum root-zone EC plus EC ratio.

Attach the date and source of irrigation water ec; those details matter when the case is repeated.

Keep the measured outcome next to the ec ratio estimate so future planning can use both.

Comparing the estimate with the outcome

A second person should be able to reproduce ec ratio from the Salt Leaching Requirement notes. Bed Settling Allowance Calculator calculates initial fill height separately.

Keep the first irrigation water ec value when creating a revised scenario.

Before relying on ec ratio