RE: second year with plot
Well you have an area known for big deer and rainfall.
My wild guess is that anything you plant that is protein rich and lush will attract deer.
When in doubt talk to a neighboring farmer for advice. Soil testing is a good idea for you. That way you will know what type of fertilizer to put down. I am guessing some type of clover would be a good idea.
Plant a few different things. Experiment.
I have tried Pheasant Forever's "Rooster Booster". I have planted barley. Corn. Last year oats and sunflowers. The main thing is plant something that will grow in your soil and growing zone.
Good luck.