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From: tim silvers
Chaska, MN
sounds good, but what is "good" soil? and what is regularly(Spring and Fall? Or what?)

Extension Message
From: Richard Hentschel
Extension Educator, Horticulture
DuPage/Kane/Kendall Unit
Spring and fall are both good times to core aerate. Fall if you are only going to do it once a year. Do this and top-dress while the sod is actively growing. The soil needs to be moist so the equipment penetrates the soil easily. A pulverized black dirt works, but even better is black dirt that is mixed with composts. Composts provide nutrition, water holding capacity and improve soil structure.

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