You can throw a lot of money at plots. We always take the simple approach: wheat and 13-13-13. Cheap and deer/turkey love it. The soil in most of our plots is pretty terrible, it's mostly sand, iron ore, and red clay. Wheat and oats grow just fine with 13-13-13 and enough rain.

Almost got screwed this year due to lack of rain. I planted 2 days before a 90% rain prediction, but never got a drop. The seed sat for 3 weeks before we finally got a shower. The birds had a field day during that time, but it seems enough was covered.

I hunted this plot last week one eve and saw 11 doe and 2 bucks munching down on the wheat:
[Linked Image]