Due to cutting off a few toes I'm way behind on my plotting. I usually spray and go back and plant t&m a couple of weeks later. I'm thinking I'd not spraying and sowing my cereal rye before the next rain and bush hog the living vegetation over it. I figure most of these weeds will die off first frost anyway. Is this a bad idea?by not killing the vegetation does it not add to the biomass under the surface?