I would cut the amount of feeders down to 15 or 1 per 40 acres. We feed a corn and roasted soybean mix, I believe it's called rack attack or attrax
I think we pay around $17-$18 a bag. I would believe with the acreage you plant and the feed.you should have the nutrition the deer require.
We hunt a timber lease and they don't burn and we are limited on foodplots. You sir are not burn and manage your habitat. Also to me from spring to fall minerals are important.