Originally Posted by larryinalabama
I alaways firured it the rye was kept cut real low, it wouldn't affect the summer grass, and when it died off the roots would break down and improve as well as areate the soil.
Not really and not in my personal experience. If your overseeing it's usually because the permanent grass is dormant. When it's coming out of dormancy it doesn't want to compete for sun, water, fertilizer and the transition isn't smooth. Like I said over seeding is done a lot on dormant turf, I just recommend selectively killing the temporary grass with chemicals for a smoother transition. Then yes I suppose it would break down and help the soil. Of course this is just my opinion.