Please forgive me for mentioning hollow-tine cultivation (or core aeration, or coring) yet again, and how it might be overdone. There’s an article I want to share with you, about what happened after coring of sand-based putting greens.
This is an elaboration on, and an extension of, the calculations showing that hollow-tine cultivation, with removal of the cores, doesn’t reduce soil organic matter (OM) at all.
That’s not an intuitive result, because OM has obviously been removed from the rootzone.
I used to think of hollow-tine cultivation, with cores removed, as one of the best ways to remove organic matter from the rootzone. Maybe even as an essential way to manage organic matter.
Hollow-tine aerification, coring, core aeration, whatever you call it, removes organic matter from the soil.
But if you measure the soil organic matter before pulling any cores, and then measure again after the cores are removed, the soil organic matter % will be exactly the same.