Should corn be fertilized?
Should corn be fertilized when growing?
Certified GKH Gardening Expert
It is best to prepare the soil first, before planting, but yes you can add fertilizer or compost as a top dress. They can usually do fine with what is in the ground, but fertilizing can give them a boost. This article will give you more information on growing corn: https://www.gardeningknowhow.com/edible/vegetables/corn/how-to-grow-corn.htm