Setting a Realistic Corn Yield Goal

Corn growers need to set a realistic corn yield goal in order to make sound decisions on corn hybrid, seeding rate, fertilizer application, and irrigation need. The goal should be the most profitable yield that can be expected for the particular set of soil, climate, and management practices. Yield goals should gradually increase over time, but cannot exceed the theoretical yield potential. Previous recommendations were to use past yields to set yield goals, gradually boosting them over time because actual yields reflect field-specific conditions such as weather, soil, hybrid choice, crop management, and moisture supply. However, a more quantitative understanding of yield potential and yield gaps can lead to setting more realistic production targets and evaluating the risks associated with them.

Using realistic yield goals can help in the management of hybrid selection, plant density, seeding rate, and fertilizer amounts. This can result in increased profit and decreased pollution to the environment. Critical reviews of yield goals on a regular basis can help keep management strategies current.