obviously you will need a soil test. If it comes back that the soil is pretty good (6-7 ph) feel free to plant anything, I have had good luck with Biologic blends but you could probably save a little money buy going to a feed store and just buying generic seed. If the soil test comes back and the soil is pretty poor you might want to focus on plantings that will improve the soil while still providing food for the deer. a mix of red clover and cereal grains would be on place to start. cereal grains (rye, wheat, oats) will grow on cement with a little water and sunlight.