I have been planting food plots in SE Michigan. I have tried:
Corn - Deer and Racoons eat it all up in July if the the surrounding fields aren't corn. If the surrounding fields are corn, then they won't touch the stuff.
Brassica - The deer barely touch it in SE Michigan. Farther north, they love it. I have been told there is a learning curve for the deer. I am sticking with planting it.
White Dutch Clover - Deer love it.
Cool Season Grasses - The Deer won't touch it by here.
Warm Season Grasses - The deer bed in it and travel through it.
Oats & Wheat - In SE Michigan they didn't touch it. Even with our mild winter this year, the oats still died.
Soybeans - They ate the plants clean.
Sugar Beats - The first year they didn't touch them. The second year my plot area was a mine field. The deer dug them up. I want to plant some more of these next year, but it is difficult and expensive to find RR sugar beats.
Sunflowers - Deer eat the heads of the sunflowers
Sorgum - Deer bed in it.
Try planting that Brassica in late July. It will be 2 feet high. Plant at a rate of 7-9 lbs/acre.
We also do some food plots up north 45th parallel area. We have good success with clovers, winter rye, brassica, and corn. The soil is very sandy and acidic. We grew a good 2 acre stand of corn, one month it was there, the next month we just found bear Sh*t.