I have 3 ft between rows of 120 day corn, and in between every other row I have a row of gaspe planted at 6 inch spacing. So it's like a 6ish foot bed with 2 rows of long season, 1 row in center of gaspe. I'm planning on applying nitrogen, how much should I apply, I will apply it by hand (glove) so I will try to spread most of it in the center where the gaspe is to let the long season corn tough it out more. I was thinking 50-60 lbs per acre. I have a little bit of a cold spell coming in a week, I hope they make it, i over sowed, so some thinning would be fine. I planted 3 weeks before last frost date, the last 2 years I planted 2 weeks before and made it. We will see. I have lots of extra corn seed this year, as my garden reduced it size quite substantial, I lost it, someone almost ran me over with his car while I was running, my other neighbor said that neighbor was in a bad mood. So I fled trailer park garden. Returned home where I hopefully won't be run over, or threatened by it.
Red clay loam, 188 frost free days, loamy soil at another site I grow at.
So you can roughly figure 1 lb actual N per bushel of corn to be harvested per acre, if your soil has some inherent fertility. Basically 50-60 is plenty for Gaspe. As for the longer season corn I would go over 100 split in two applications, but get 50 on it before v6 because that is when ear size is determined. Yellow corn at v6 will not come close to reaching it’s yield potential.