Active Sensor Strategies for In-season Application of Urea in Corn

Active Sensor Strategies for In-season Application of Urea in Corn

Daniel W. Barker, Iowa State University
John E. Sawyer, Iowa State University

This poster is from Iowa State University Extension and Outreach (2014). Posted with permission.

Description

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.