Cited by 746Soil Carbon and Nitrogen DynamicsSoil and Water Nutrient DynamicsAgricultural Science and Fertilization

Evaluation of effectiveness of enhanced‐efficiency fertilizers as mitigation options for N2O and NO emissions from agricultural soils: meta‐analysis

AKIYAMA, HIROKO, YAN, XIAOYUAN, YAGI, KAZUYUKI·2010·Global Change Biology

Abstract

Agricultural fields are an important anthropogenic source of atmospheric nitrous oxide (N 2 O) and nitric oxide (NO). Although many field studies have tested the effectiveness of possible mitigation options on N 2 O and NO emissions, the effectiveness of each option varies across sites due to environmental factors and field management. To combine these results and evaluate the overall effectiveness of enhanced‐efficiency fertilizers [i.e., nitrification inhibitors (NIs), polymer‐coated fertilizers (PCFs), and urease inhibitors (UIs)] on N 2 O and NO emissions, we performed a meta‐analysis using field experiment data (113 datasets from 35 studies) published in peer‐reviewed journals through 2008. The results indicated that NIs significantly reduced N 2 O emissions (mean: −38%, 95% confidential interval: −44% to −31%) compared with those of conventional fertilizers. PCFs also significantly reduced N 2 O emissions (−35%, −58% to −14%), whereas UIs were not effective in reducing N 2 O. NIs and PCFs also significantly reduced NO (−46%, −65% to −35%; −40%, −76% to −10%, respectively). The effectiveness of NIs was relatively consistent across the various types of inhibitors and land uses. However, the effect of PCFs showed contrasting results across soil and land‐use type: they were significantly effective for imperfectly drained Gleysol grassland (−77%, −88% to −58%), but were ineffective for well‐drained Andosol upland fields. Because available data for PCFs were dominated by certain regions and soil types, additional data are needed to evaluate their effectiveness more reliably. NIs were effective in reducing N 2 O emission from both chemical and organic fertilizers. Moreover, the consistent effect of NIs indicates that they are potent mitigation options for N 2 O and NO emissions.

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Crossref · 10.1111/j.1365-2486.2009.02031.x

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  • Tillage and water management can affect N2O fluxes by altering the soil microenvironment.

    “Likewise, tillage and water management can affect N 2 O fluxes by altering the soil microenvironment 51,52”

    From Climate-smart soils (2016) · cites this paper as [51]

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Authors
AKIYAMA, H., YAN, X., & YAGI, K.
Affiliations
  • National Institute for Agro-Environmental Sciences (JP)
  • Chinese Academy of Sciences (CN)
Corresponding author
AKIYAMA, HIROKO
Venue
Global Change Biology
Publisher
Wiley
Published
2010-05-04
Volume
16
Issue
6
Pages
1837-1846
ISSN
  • 1354-1013 (ISSN-L)
  • 1365-2486
OpenAlex
W2099011564
Cited by
746
References
33
Citations by year
2026: 40 · 2025: 48 · 2024: 64 · 2023: 57 · 2022: 59 · 2021: 83 · 2020: 53 · 2019: 51 · 2018: 46 · 2017: 60 · 2016: 45 · 2015: 36 · 2014: 33 · 2013: 23 · 2012: 27
FWCI
26.84
Type
journal article
Language
en
Open access
closed
Locations
Global Change Biology (publishedVersion)
Funders
National Natural Science Foundation of China
Topics
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil Carbon and Nitrogen Dynamics
  • Physical Sciences › Environmental Science › Environmental Chemistry › Soil and Water Nutrient Dynamics
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Agricultural Science and Fertilization
Keywords
nitrous oxide emissions, nitric oxide emissions, enhanced efficiency fertilizers, nitrification inhibitors, polymer-coated fertilizer, urease inhibitors, greenhouse gas emissions reduction, soil type effects, land use effects, organic fertilizer, nitrogen fertilization

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