How Deep to Plant Corn

I like two inches.  Prairie Farmer published Research done by Iowa State and Pioneer last year that shows that the depth can range from 1.5 to 3 inches.  The problem with 3 inches is that if the surfaces is crusted, It takes extra energy to get that plant our of the ground.  1.5 is fine if your seedbed is even and you don't leave any kernels on top of the ground.  If spring is coo and wet, the shallow end will be a good idea.