RE: Reseeding a clover plot?
Go ahead and broadcast the clover seed on top of the bare areas without working the soil. Frost seeding is the best way to go and you may still have some time in your part of the US. Spread the seed a little thicker (about 25% more) then what you would in a tilled field. This will work with clover, but not alfalfa. Some years, you will have more success then others due to weather conditions. If it doesn't work this spring, you can try again in the Fall if moisture is adequate a month to 6 weeks before the first average frost. For me, it general works better in the Spring.