Cited by 463Soil Carbon and Nitrogen DynamicsSoil Management and Crop YieldSoil erosion and sediment transport

Climate, duration, and N placement determine N 2 O emissions in reduced tillage systems: a meta‐analysis

van Kessel, Chris, Venterea, Rodney, Six, Johan, Adviento‐Borbe, Maria Arlene, Linquist, Bruce, van Groenigen, Kees Jan·2013·Global Change Biology

Abstract

No‐tillage and reduced tillage ( NT / RT ) management practices are being promoted in agroecosystems to reduce erosion, sequester additional soil C and reduce production costs. The impact of NT / RT on N 2 O emissions, however, has been variable with both increases and decreases in emissions reported. Herein, we quantitatively synthesize studies on the short‐ and long‐term impact of NT / RT on N 2 O emissions in humid and dry climatic zones with emissions expressed on both an area‐ and crop yield‐scaled basis. A meta‐analysis was conducted on 239 direct comparisons between conventional tillage ( CT ) and NT / RT . In contrast to earlier studies, averaged across all comparisons, NT / RT did not alter N 2 O emissions compared with CT . However, NT / RT significantly reduced N 2 O emissions in experiments >10 years, especially in dry climates. No significant correlation was found between soil texture and the effect of NT / RT on N 2 O emissions. When fertilizer‐N was placed at ≥5 cm depth, NT / RT significantly reduced area‐scaled N 2 O emissions, in particular under humid climatic conditions. Compared to CT under dry climatic conditions, yield‐scaled N 2 O increased significantly (57%) when NT / RT was implemented <10 years, but decreased significantly (27%) after ≥10 years of NT / RT . There was a significant decrease in yield‐scaled N 2 O emissions in humid climates when fertilizer‐N was placed at ≥5 cm depth. Therefore, in humid climates, deep placement of fertilizer‐N is recommended when implementing NT / RT . In addition, NT / RT practices need to be sustained for a prolonged time, particularly in dry climates, to become an effective mitigation strategy for reducing N 2 O emissions.

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Crossref · 10.1111/j.1365-2486.2012.02779.x

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  • By one recent study, corn farmers in the U.S. Midwest could reduce N2O loss by 50% with more conservative fertilizer practices.

    “By one recent study 53 , corn farmers in the U.S. Midwest could reduce N 2 O loss by 50% with more conservative fertilizer practices.”

    From Climate-smart soils (2016) · cites this paper as [53]

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Authors
van Kessel, C., Venterea, R., Six, J., Adviento‐Borbe, M. A., Linquist, B., & van Groenigen, K. J.
Affiliations
  • Department of Plant Sciences University of California Davis CA 95616 USA
  • Agricultural Research Service (US)
  • University of California, Davis (US)
  • Department of Biological Sciences and Merriam‐Powell Center for Environmental Research Northern Arizona University Flagstaff AZ 86011 USA
Venue
Global Change Biology
Publisher
Wiley
Published
2012-08-03
Volume
19
Issue
1
Pages
33-44
ISSN
  • 1354-1013 (ISSN-L)
  • 1365-2486
OpenAlex
W2166656778
Cited by
463
References
105
Citations by year
2026: 25 · 2025: 45 · 2024: 34 · 2023: 30 · 2022: 55 · 2021: 39 · 2020: 36 · 2019: 39 · 2018: 24 · 2017: 41 · 2016: 34 · 2015: 22 · 2014: 24 · 2013: 13 · 2012: 2
FWCI
3.17
Type
journal article
Language
en
Open access
closed
Locations
  • Global Change Biology (publishedVersion)
  • PubMed (publishedVersion)
Funders
Irish Research Council
Topics
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil Carbon and Nitrogen Dynamics
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil Management and Crop Yield
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil erosion and sediment transport
Keywords
nitrous oxide emissions, no-tillage, reduced tillage, conventional tillage, deep placement, climate effects on emissions, arid climate, humid climate, long-term tillage effects, yield-scaled emissions, greenhouse gas emissions reduction, soil texture
MeSH terms
Agriculture, Climate, Nitrogen, Nitrous Oxide

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