Check out this page produced by the Alabama wildlife folks..
http://www.outdooralabama.com/huntin...rfoodplots.pdf
As you will see, a soil test is mandatory. I have a place in South Alabama and after liming a few times, my p.h. is perfect and my plots thrive. I am still experimenting with different seed mixes, but, rye grass is almost fool-proof. It doesn't provide the best nutrition for the deer though, and if your neighbors have something more palatable, the deer will be in their plots more than yours. Your soil test is the first step, to decide what will grow well in your soil. There are products that grow well in acidic soil, but, most need a neutral p.h. to thrive. The Whitetail Institute (
http://www.whitetailinstitute.com/) sells a product that is called EXTREME, and it worked well in my plots until I got my p.h. right. Now I can experiment with perennials like clover and such. If I care for the perennials properly, I only have to plant once every 3 - 5 years.
Good Luck!