Can application of enhanced efficiency fertilizers at planting reduce N losses from grain corn production in Ontario?

IPNI-2014-CAN-4RC01

Objective To determine if applying a nitrogen fertilizer treated for a timed release at planting results in similar reduction in N2O emissions and nitrate leaching compared to application at the 6th leaf-stage in corn; To evaluate if nitrogen rate adjustments in these two practices can lead to further reductions in N2O emissions and nitrate leaching; To compare life-cycle economic and environmental impacts of these two 4R practices, considering management changes associated with each practice. Read more


Year of initiation:2014
Year of completion:?
Map:

Interpretive Summary

Nitrogen (N) is a key input for sustaining high crop yields, but fertilizer N uptake efficiency in crops is relatively low. Part of the applied N that is not taken up by crops is vulnerable to losses such as nitrate leaching and nitrous oxide emissions. The overall goal of this project is to determine how Right Time and Right Source practices for N fertilizer management affect N losses.

Nitrogen is a key input for sustaining high crop yields, but fertilizer N uptake efficiency in crops is relatively low. Part of the applied N not taken up by crops is vulnerable to losses such as nitrate leaching and nitrous oxide emissions. The overall goal of this project is to determine how Right Time and Right Source practices for N fertilizer management affect nitrogen losses.

Nitrogen is a key input for sustaining high crop yields, but the fertilizer N uptake efficiency in crops is relatively low with conventional production practices ( 50%). Part of the applied N not taken up by crops is vulnerable to losses such as nitrate leaching and nitrous oxide emissions. To overcome this situation, several mitigation practices have been proposed as part of the 4R nutrient strategy.

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Updates & Reports

2016

2016 Annual Report

2015

2015 Annual Report

2014

2014 Annual Report

2014

Project Description


Project Leader

Claudia Wagner-Riddle, University of Guelph


Project Cooperators

None


IPNI Staff

T. Bruulsema


Location

Americas \ Northern America \ CAN \ Ontario


Topics

4r place, 4r rate, 4r research fund, 4r source, 4r time

maize

Nitrogen (N)