Add agricultural lime (calcitic lime)
Add dolomitic lime if magnesium is also needed
Mix in wood ash sparingly
Use crushed limestone
Apply hydrated lime only with caution and according to soil test recommendations
Incorporate oyster shell flour or crushed shells
Use alkaline compost materials in moderation
Avoid acidifying fertilizers such as ammonium sulfate or urea
Reduce applications of acidic organic matter like peat moss and pine needles
Test soil pH regularly before and after amendments
Work amendments into the topsoil evenly
Water with alkaline water if appropriate and tested
Reapply amendments gradually based on soil test results