In:
Frontiers in Ecology and the Environment, Wiley, Vol. 10, No. 10 ( 2012-12), p. 562-570
Abstract:
Nitrous oxide (N 2 O) is often the largest single component of the greenhouse‐gas budget of individual cropping systems, as well as for the US agricultural sector as a whole. Here, we highlight the factors that make mitigating N 2 O emissions from fertilized agroecosystems such a difficult challenge, and discuss how these factors limit the effectiveness of existing practices and therefore require new technologies and fresh ideas. Modification of the rate, source, placement, and/or timing of nitrogen fertilizer application has in some cases been an effective way to reduce N 2 O emissions. However, the efficacy of existing approaches to reducing N 2 O emissions while maintaining crop yields across locations and growing seasons is uncertain because of the interaction of multiple factors that regulate several different N 2 O‐producing processes in soil. Although these processes have been well studied, our understanding of key aspects and our ability to manage them to mitigate N 2 O emissions remain limited.
Type of Medium:
Online Resource
ISSN:
1540-9295
,
1540-9309
Language:
English
Publisher:
Wiley
Publication Date:
2012
detail.hit.zdb_id:
2161292-4
SSG:
12
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