The optimum pH range for a corn/soybean rotation is 5.8 to 6.2. Any soil pH below this level is considered low. Corn health may be visibly affected by low pH, but it is usually manifested as a nutrient deficiency.

What is the best fertilizer for sweet corn?

Nitrogen fertilizer suitable for fall sweet corn should have a mineral content specifically created to enhance the corn plant’s growth. For corn, use a fertilizer labeled “16-16-8,” which describes the mineral composition in the fertilizer: 16% nitrogen, 16% phosphate and 8% potassium (following an N-P-K formula).

What acidity does corn like?

The optimum pH range is 5.8 to 6.2 for a corn/soybean rotation. Any soil pH above this level is considered high, especially if it is greater than 7. Corn health may be visibly affected by high pH, but it is usually manifested as a nutrient deficiency.