I am limited on time right now, so this reply will be short. But we have in the past fenced the entire perimeter of a plot that was about 1-1/2 acres...with pretty good success. Long story short...we are in the middle of an aggressive project now to install two "permanent, 6'+ tall sides parallel to one another, with the ends being left open. The open ends will be electric fenced once everything has been planted. (Which the corn has now been planted.) We are setting up three such fields, two that are about 1 acre and one that is about 2 acres.
At some point we will take down the "ends", the electric fence to allow access. This approach should keep the deer out, we will have to up our game and take out more coons too for this gambit to work. But...I am tired of having earless, knee high stalks by October. So we are going "big" at this time to be able to have corn and/or beans left for season and/or post season.