Generally speaking, which type of cultivation is best for existing turf?

• A. Core aerification with hollow tines
• B. Solid-tine aeration
• C. Chemical aeration
• D. No cultivation

Answer: (A)

Relieving soil compaction and creating space for air, water, and roots in an established turf stand is essential. Core aerification with hollow tines does this best because it removes small cores of soil, leaving open channels that immediately improve aeration and drainage. As those cores break down, they add organic matter and help loosen the soil structure, which strengthens root growth and overall turf resilience. This physical relief of compaction also helps reduce surface thatch buildup by promoting microbial activity beneath the canopy.

Solid-tine aeration creates holes but doesn’t remove cores, so it improves porosity less and doesn’t address thatch or heavy compaction as effectively. Chemical aeration relies on chemical processes rather than changing the soil’s physical structure, so its benefits are typically less consistent and shorter-lived. No cultivation leaves the soil compacted with poor drainage and restricted root growth, offering no improvement to the turf’s environment.