Will, I live in NW OK, hunt and also farm here. There are many different types of soil here. On the farm where I live, you can raise practically anything if you get the rain. On my hunting property, though, it is extremely sandy. It is about 1 1/2 miles from the Cimarron river and the soil is basically river sand, but it will grow trees. The only crop I've found that does good in the summer is cowpeas. The deer love them, they will grow in poor soil, and are relatively drough resistant. I would suggest planting about May 1. That is really a little early, but my experience with planting later is that what the deer don't get, the grasshoppers do. Also, you have a better chance of having moisture than later on. The variety I would recommend is Chinese Reds. They seem to be the most drouth resistant. I double the planting rate on most everything I plant out there. Normally you would plant about 20# of seed in a farming situation, but on the deer plot I double that because the deer will start eating them just as soon as they come up, and if they eat them off at the two leaf stage, they are done.If they are thicker, they have a better chance to shade the ground. Also, the bigger the plot the better. My experience of very small plots is that the deer will wipe them out and grasshoppers will be worse on them.