Maximizing corn yield depends on a strong “solar collection system” of healthy upper canopy leaves and sufficient nitrogen during reproduction. Research shows upper leaves drive 80–90% of photosynthesis, while lower leaves serve as nutrient reserves. Effective nitrogen management—especially during grain fill—helps prevent stress, maintain kernel weight, and protect yield potential.

Corn’s nitrogen uptake depends on how its roots grow and interact with the soil. This article explores how root architecture—shaped by genetics, soil type, and nitrogen placement—affects nutrient efficiency. Learn how root angle, depth, and density influence the best nitrogen strategy for your fields, and how choosing the right hybrid and fertilizer placement can maximize yield and nitrogen use efficiency.