Cited by 110Soil Carbon and Nitrogen DynamicsThermochemical Biomass Conversion ProcessesSoil and Water Nutrient Dynamics

Influence of biochar on nitrogen fractions in a coastal plain soil

Schomberg, Harry H., Gaskin, Julia W., Harris, Keith, Das, K.C., Novak, Jeff M., Busscher, Warren J., Watts, Don W., Woodroof, Robin H. +4 more·2012·Journal of Environmental Quality

Abstract

Interest in the use of biochar from pyrolysis of biomass to sequester C and improve soil productivity has increased; however, variability in physical and chemical characteristics raises concerns about effects on soil processes. Of particular concern is the effect of biochar on soil N dynamics. The effect of biochar on N dynamics was evaluated in a Norfolk loamy sand with and without NHNO. High-temperature (HT) (≥500°C) and low-temperature (LT) (≤400°C) biochars from peanut hull ( L.), pecan shell ( Wangenh. K. Koch), poultry litter (), and switchgrass ( L.) and a fast pyrolysis hardwood biochar (450-600°C) were evaluated. Changes in inorganic, mineralizable, resistant, and recalcitrant N fractions were determined after a 127-d incubation that included four leaching events. After 127 d, little evidence of increased inorganic N retention was found for any biochar treatments. The mineralizable N fraction did not increase, indicating that biochar addition did not stimulate microbial biomass. Decreases in the resistant N fraction were associated with the high pH and high ash biochars. Unidentified losses of N were observed with HT pecan shell, HT peanut hull, and HT and LT poultry litter biochars that had high pH and ash contents. Volatilization of N as NH in the presence of these biochars was confirmed in a separate short-term laboratory experiment. The observed responses to different biochars illustrate the need to characterize biochar quality and match it to soil type and land use.

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Crossref · 10.2134/jeq2011.0133

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  • Biochar addition has no effect on mineralization.

    “have no effect on mineralization [20,70]”

    From A Review of Biochar and Soil Nitrogen Dynamics (2013) · cites this paper as [20]

  • Schomberg et al. found differences in a recalcitrant N fraction when incubating several different biochars over 127 days.

    “Schomberg et al. [20] who also found differences in a recalcitrant N fraction when incubating several different biochars over 127 days.”

    From A Review of Biochar and Soil Nitrogen Dynamics (2013) · cites this paper as [20]

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Authors
Schomberg, H. H., Gaskin, J. W., Harris, K., Das, K. C., Novak, J. M., Busscher, W. J., Watts, D. W., Woodroof, R. H., Lima, I. M., Ahmedna, M., Rehrah, D., & Xing, B.
Affiliations
  • Agricultural Research Service (US)
  • University of Georgia (US)
  • USDA-ARS, Coastal Plains Research Laboratory; Florence SC 29501
  • North Carolina Agricultural and Technical State University (US)
  • University of Massachusetts Amherst (US)
Corresponding author
Schomberg, Harry H.
Venue
Journal of Environmental Quality
Publisher
Wiley
Published
2012-07
Volume
41
Issue
4
Pages
1087-1095
ISSN
0047-2425 (ISSN-L)
OpenAlex
W2071197592
Cited by
110
References
60
Citations by year
2026: 3 · 2025: 4 · 2024: 4 · 2023: 10 · 2022: 7 · 2021: 8 · 2020: 12 · 2019: 9 · 2018: 10 · 2017: 7 · 2016: 7 · 2015: 12 · 2014: 10 · 2013: 4 · 2012: 2
FWCI
13.64
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Environmental Quality (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil Carbon and Nitrogen Dynamics
  • Physical Sciences › Engineering › Biomedical Engineering › Thermochemical Biomass Conversion Processes
  • Physical Sciences › Environmental Science › Environmental Chemistry › Soil and Water Nutrient Dynamics
Keywords
biochar, soil nitrogen fractions, nitrogen mineralization, nitrogen leaching, ammonia volatilization, biochar pyrolysis temperature, biochar pH, poultry litter biochar, soil carbon sequestration, biochar quality
MeSH terms
Charcoal, Hydrogen-Ion Concentration, Nitrogen, Soil, Time Factors, Ecosystem

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