Optimizing Nitrogen Fertilizer Application in Corn Using Green Technology

Optimizing Nitrogen Fertilizer Application in Corn Using Green Technology

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

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

Description

The utilization of active canopy sensors in corn (Zea Mays L.) for in-season N fertilizer management has the potential to maintain optimal production and conserve fertilizer N resources. Canopy sensors can be considered a green technology in production agriculture by attempting equitable land stewardship and providing an economically viable N management practice. Robust and accurate algorithms to determine an appropriate N application rate based on canopy sensing is needed in order to effectively utilize sensors in Iowa production fields. The objective of this study was to develop N rate algorithms using active canopy sensors which can prescribe in-season N application to corn.