If your just looking for something to put in a feeder, then feed them a mixture of different grains, oats wheat, corn, minerals, it gives them what they need. If your looking for something to plant like food plots, then a mixture of grains works well there also, corn is one of the worst things to plant. It's only good for them when it reaches a certain dryness content during that year, it's great cover for them to hide in, but not too good for them. Deer are browsers, so your habitat improvement will be more beneficial to them all year.