Effective......? Factor in the cost of the seed and I'd say no. Not an effective way to get a stand.
Will you get a spotty stand that takes a few years to get established? Maybe.
I have a 6 and 8 acre patch I used to fight Bermuda creeping in. 5 years ago I decided to stop fighting it and let it take over. One is about 30% covered, the other maybe 15%.