Details

Autor(en) / Beteiligte

• Venterea, Rodney T
• Halvorson, Ardell D
• Kitchen, Newell
• Liebig, Mark A
• Cavigelli, Michel A
• Grosso, Stephen J Del
• Motavalli, Peter P
• Nelson, Kelly A
• Spokas, Kurt A
• Singh, Bhupinder Pal
• Stewart, Catherine E
• Ranaivoson, Andry
• Strock, Jeffrey
• Collins, Hal

Titel

Challenges and opportunities for mitigating nitrous oxide emissions from fertilized cropping systems

Ist Teil von

• Frontiers in ecology and the environment, 2012-12, Vol.10 (10), p.562-570

Ort / Verlag

Ecological Society of America

Erscheinungsjahr

2012

Quelle

Wiley Online Library All Journals

Beschreibungen/Notizen

• 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.