Apply agricultural lime
Use dolomitic lime if magnesium is also needed
Apply wood ash sparingly
Use calcitic limestone for calcium without extra magnesium
Mix in crushed oyster shell or shell flour
Add hydrated lime only with extreme caution
Test soil pH before applying amendments
Re-test soil pH after treatment
Work amendments into the topsoil
Repeat applications gradually if needed
Avoid acid-forming fertilizers
Reduce use of ammonium-based fertilizers
Add compost made from alkaline materials if appropriate
Improve drainage if soil is waterlogged and acidic
Follow local soil test recommendations for application rates