Man....that's a tough one to try and figure out,at least we can put out salt/minerals and misc grain when we're not Hunting here in Missouri!
Maybe put out a mixture of different plants in Your Food Plots to draw the Deer in better,Fruit Trees would be a good choice and in the Fall I've heard that the Orbital Gland Scent really draws in a lot more Bucks but that's going to put You closer to late Sept,Oct and Nov.!
I saw a new Product out by Tinks in a spray bottle,it was some kind of scented flavoring You spray on vegetation to draw Deer in but You'd have to check it out to make sure it wasn't considered "Bait" also?