I'm trying something sort of like that this year, and will be again next year. Double planted 72 inch or so rows of corn with soybeans in between and a diversity mix spread throughout. Planted with an old JD 292 planter pulled behind my 4 wheeler. No-tilled or the best attempt I could make at it. 2nd year out of conventional ag. No amendments applied except vermicast through the planter with the seed. 90 day corn. Central MN. Fortunately I don't get too many bears hanging around. Plenty of raccoons, but they haven't proved to be too big of a problem yet.If I ever had the space, and didn't have to deal with bears and coons, I'd love to try 60" corn at a 50,000 in-row pop/acre. I'd also drag the planter over it a third time to put in a vining bean to climb and feed it.
Don't forget the chicory.