posted 2 months ago
For me, developing seed that I want to plant next year has always been more important than maximizing my edible yield right now. Because of that, If the way you have them growing is how you want to keep growing them, I wouldn't fertilize. If your plan is to spread them out in the future or to provide nitrogen every year, or if making sure you get a harvest to put by for the winter is most important, then I would.
But this answer is from a theoretical framework. I'm still trying to figure out how I want to space my own corn.