No Till farming is rapidly growing as a popular method of weed suppression. Growing a mixture of legume and grass is often the best No Till cover crop by producing both nitrogen in the soil and heavy foliage to mat down in the spring. Fast growing legumes will grow fast and therefore suppress sunlight and space to weeds.
The Common Buckwheat is a grain that can be planted late spring to early summer and improves top soil and an effective choke weed!
Produces heavy amounts of organic matter and suppresses weeds. Piper Sudan grass is a great catch crop for excess nitrogen.