RE: Food plot-Central Illinois
Being from Central Ill. you should have pretty good soil, but it wouldn't hurt to do a soil sample.
If this is your first year I would suggest that you plant strips of different plants; White Clover, Red Cover, Iron Clay Peas, whatever comes to mind. You probably won't have to plant corn as it probably grows all around you. Make your plantings different from what is around the area. By planting strips, you can find just what the deer might be attracted to best. Brassicas, winter peas are late fall, early winter forage, Clovers for summer, early fall. There are more forages, but I haven't any experience in them. Watch this page, others will give you more ideas.
russ