Q21. How long after liming should I sample to know if my liming program is working?

Soil testing three to four years after liming accurately reflects lime effectiveness and indicates if further application is necessary.

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Optimal Timing for Testing Soil After Lime Application

About three to four years after liming is the ideal amount of time. This gives the lime time to work, and you are less likely to pick up lime particles in the soil sample that will affect the test results. The results will also show if enough lime was applied to increase soil pH to the desired level, or if more is needed.

For more information on acidity and management, see the SA state acidity website.

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