Cited by 364Soil Carbon and Nitrogen DynamicsAgricultural Science and FertilizationSoil and Water Nutrient Dynamics

Maize biochars accelerate short-term soil nitrogen dynamics in a loamy sand soil

Nelissen, Victoria, Rütting, Tobias, Huygens, Dries, Staelens, Jeroen, Ruysschaert, Greet, Boeckx, Pascal·2012·Soil Biology and Biochemistry

Abstract

Biochar addition to soils has been proposed as a means to increase soil fertility and carbon sequestration. However, its effect on soil nitrogen (N) cycling and N availability is poorly understood. To gain better insight into the short-term effects of biochar on gross N transformation processes, a ¹⁵N tracing experiment in combination with numerical data analysis was conducted. An arable loamy sand soil was used and mixed with two silage maize biochars, produced at 350 °C and 550 °C. The results showed accelerated soil N cycling following biochar addition, with increased gross N mineralization (185–221%), nitrification (10–69%) and ammonium (NH₄ ⁺) consumption rates (333–508%). Moreover, transfer of N from a recalcitrant soil organic N (Nᵣₑc) pool to a more labile soil organic N (Nₗₐb) pool was observed. In the control treatment, 8% of the NH₄ ⁺ mineralized from Nₗₐb was immobilized to the Nᵣₑc pool. In contrast, 79% and 55% of the NH₄ ⁺ mineralized from Nᵣₑc were immobilized to the Nₗₐb pool in the treatment with biochar-350 °C and biochar-550 °C, respectively. NH₄ ⁺–N was adsorbed quickly to biochar at the start of the experiment, thereby buffering plant-available N. In conclusion, these types of biochar accelerated soil N transformations in the short term, thereby increasing soil N bio-availability, through a combined effect of mineralization of the recalcitrant soil organic N pool and subsequent NH₄ ⁺ immobilization in a labile soil organic N pool.

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Crossref · 10.1016/j.soilbio.2012.05.019

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  • Mineralization in the control was mainly from a labile N pool.

    “whereas mineralization in the control was mainly from a labile N pool.”

    From A Review of Biochar and Soil Nitrogen Dynamics (2013) · cites this paper as [67]

  • Most of the N mineralized came from a more recalcitrant fraction.

    “with most of the N coming from a more recalcitrant fraction”

    From A Review of Biochar and Soil Nitrogen Dynamics (2013) · cites this paper as [67]

  • Gross N mineralization was stimulated by biochar addition.

    “The authors found that gross N mineralization was stimulated by biochar addition”

    From A Review of Biochar and Soil Nitrogen Dynamics (2013) · cites this paper as [67]

  • Biochar stimulation of gross nitrification in an agricultural soil was due to increased mineralization of NH4+ from the recalcitrant soil N pool.

    “showed that it was due to increased mineralization of NH 4 + from the recalcitrant soil N pool”

    From A Review of Biochar and Soil Nitrogen Dynamics (2013) · cites this paper as [67]

  • The flux of NH4+ mineralization was larger than the simultaneous incorporation of NH4+ into the labile soil N pool.

    “where the flux was larger than the simultaneous incorporation of NH4 + into the labile soil N pool.”

    From A Review of Biochar and Soil Nitrogen Dynamics (2013) · cites this paper as [67]

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Authors
Nelissen, V., Rütting, T., Huygens, D., Staelens, J., Ruysschaert, G., & Boeckx, P.
Affiliations
  • Ghent University (BE)
  • University of Gothenburg (SE)
  • Austral University of Chile (CL)
  • Instituut voor Landbouw en Visserijonderzoek (BE)
Corresponding author
Nelissen, Victoria
Venue
Soil Biology and Biochemistry
Publisher
Elsevier BV
Published
2012-12
Volume
55
Pages
20-27
ISSN
0038-0717 (ISSN-L)
OpenAlex
W2061656902
Cited by
364
References
40
Citations by year
2026: 10 · 2025: 14 · 2024: 44 · 2023: 30 · 2022: 40 · 2021: 37 · 2020: 30 · 2019: 35 · 2018: 21 · 2017: 28 · 2016: 22 · 2015: 20 · 2014: 22 · 2013: 11
FWCI
25.86
Type
journal article
Language
en
Open access
closed
Locations
  • Soil Biology and Biochemistry (publishedVersion)
  • Ghent University Academic Bibliography (Ghent University) (submittedVersion)
  • Lund University Publications (Lund University) (submittedVersion)
Funders
  • Interreg IVB
  • Multidisciplinary Research Partnership Ghent Bio-economy
  • Flanders (FWO)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil Carbon and Nitrogen Dynamics
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Agricultural Science and Fertilization
  • Physical Sciences › Environmental Science › Environmental Chemistry › Soil and Water Nutrient Dynamics
Keywords
biochar, soil nitrogen cycling, nitrogen mineralization, nitrification, ammonium immobilization, ammonium adsorption, 15N tracing, loamy sand soil, biochar pyrolysis temperature, nitrogen availability

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