when do you fertilize field corn
You should fertilize corn when planting and late in the growing season. More Info: Assuming the soil pH is unknown, when initially planting corn till into 100 square feet of soil 3-4 pounds of a commercial fertilizer such as 12-12-12. As soon as the plant has reached a height of 16-18â high side dress the plant with additional fertilizer at a rate of one tablespoon per hill. Fertilize the soil not the plant and water deeply. The best way to tell exactly how much fertilizer and/or soil amendments you will need is to have your soil tested.