How to Fix Compacted Soil: Broadforks, Aeration, and Cover Crops

How to fix compacted soil — diagnosing compaction severity, when to use a broadfork vs. core aeration vs. cover crops, and the long-term biology that keeps soil structure open.

When to do this

Address compaction in spring or fall, when soil is moist but not waterlogged — the best time for aeration equipment to penetrate and for cover crops to establish. Per Penn State Extension, "aerating when soil is too wet causes smearing of pores rather than opening them." A fall core aeration followed by overseeding and organic matter application is the standard first-season approach for mild to moderate compaction.