Relationships of Nitrous Oxide Emissions to Fertilizer Nitrogen Recovery Efficiencies in Rain-fed Corn Systems: Research Foundation Building

IPNI-2015-USA-4RN28

Justification: Nitrous oxide (N2O) emissions from corn production systems are a large societal concern because so much of the N fertilizer applied to crop production in the United States is applied to corn, and because agriculture alone accounts for the majority of N2O emissions from all sources. The IPCC (2006) has estimated that an average of approximately 1. Read more


Year of initiation:2015
Year of completion:?
Map:

Interpretive Summary

2016

Little is known about relationships between nitrous oxide (N2O) loss and crop nitrogen use efficiency (NUE) metrics, despite years of past research. It is commonly assumed that higher nitrogen recovery efficiency (NRE) by corn, following nitrogen (N) fertilizer application, will lead to lower N2O emissions but there has been little direct evidence.

2015

Relationships between N recovery efficiency (NRE) and nitrous oxide (N2O) emissions in traditional or high-yield corn production systems in the US Corn Belt are poorly understood.


Updates & Reports

2015

2015 Annual Report

2015

Project Description


Project Leader

Tony Vyn, Purdue University


Project Cooperators

None


IPNI Staff

Cliff Snyder


Location

Americas \ Northern America \ USA \ Indiana


Topics

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

maize

Nitrogen (N)