There are machines that can apply nitrogen to tall corn. So you can apply smaller amounts spread out over the growth cycle of the corn plant. You can also go in an correct places that are nitrogen deficient.
This video is from a young fellow over in South-Western WI. HE does some very good farming videos. So if your not familiar with grain farming you may find his stuff interesting.
Putting Nitrogen on:
https://www.youtube.com/watch?v=h4ZEPDy9wMI
Miller Nitro putting on nitrogen
This video is from a young fellow over in South-Western WI. HE does some very good farming videos. So if your not familiar with grain farming you may find his stuff interesting.
Putting Nitrogen on:
https://www.youtube.com/watch?v=h4ZEPDy9wMI
Miller Nitro putting on nitrogen