Several years ago I did that with some open pollinated corn....seemed to work well with weaned calves.I have actually tested some open pollinated corn at around 11 or 12% protein...vs, 5 or 6 % of this stuff grown today. I have thought of doing it again but havent....I think you could do almost as well with some good fescue and clover by letting it stockpile all year and maybe flash grazing it a couple of times during the year, but I digress.
I plowed, then disked, then planted w/corn planter. I may have even run a cultivator thru it once or twice.Had lots of crabgrass down in it along with clover and morning glory. They eat it all.
Its surprising how well OP corn will grow this way.You just cant do it in the same spot year after year. Thats what the old timers did till they exhausted the ground then moved on.....from what I understand.