Answer: Loosening of the soil is helpful in starting a new lawn or overseeding an existing lawn. Roto-tilling, aerating, slicing, or heavy raking are some of the methods that can be used. Depending on the compaction (tightness) of your soil will determine which method you may choose. Equipment can be obtained through local rental companies, including some Home Depots.
Applying gypsum to your soil is also an excellent way to help loosen heavy clay soils. Gypsum improves soil porosity, which is the soil's ability to absorb nutrients. Gypsum will allow easier soil penetration for seedling grass. Gypsum should be applied at a rate of up to 60 lbs. per 1,000 feet of lawn area twice a year.
Good luck with your lawn!
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