A week before for me.
Are you in an area with lots of ag already?
I've got a 5ac square shaped field in south Baldwin county with lots of ag around it and other dove fields too.
So Im not really worried about drawing birds to the area.
Im just going to pull them off of the other fields
My plan is to turn over the whole field, then "plant" wheat @ 200lb/ac in maybe a quarter of it a week before I want to hunt. If I do a quarter of the field at a time as long as I am in the date ranges I should be able to get 4 shoots out of it. My understanding is this is legal as long as you are not discing the "old" wheat under and "planting" over the top of it.