I have 2, 1/4 - 1/2 acre fall plots. I put a mix of brassicas and oats in them and they get pounded. The brassicas will take 45 - 60 days to mature so I like to plant them early in August to be ready for the first couple of weeks of October. September 1st may be a bit late but probably ok depending on what we get for weather in Oct. I tilled them last weekend and put some Lime down to get them prepared for planting later. I will go back in August and till them again and plant the same day. This is one approach that works well, Im sure some of the other guys on here will have other suggestions as well. Good Luck :way: