Addition of N fertilizer during the midvegetative corn (Zea Mays L.) stage is being used in Iowa to protect yield potential. The objective of this experiment was to compare pre-plant and in-season N application strategies, and evaluate N use efficiency and grain yield of sensor-based N rate application.
Iowa State University
Barker, Daniel W. and Sawyer, John E., "Active Sensor Strategies for In-season Application of Urea in Corn" (2014). Agronomy Conference Proceedings and Presentations. 5.