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@ARTICLE{Cao:917543,
      author       = {Cao, Xinyue and Reichel, Rüdiger and Wissel, Holger and
                      Brüggemann, Nicolas},
      title        = {{I}mproving nitrogen retention of cattle slurry with
                      oxidized biochar: {A}n incubation study with three different
                      soils},
      journal      = {Journal of environmental quality},
      volume       = {52},
      number       = {1},
      issn         = {0047-2425},
      address      = {Hoboken, NJ},
      publisher    = {Wiley},
      reportid     = {FZJ-2023-00746},
      pages        = {1 - 12},
      year         = {2023},
      abstract     = {The application of livestock slurry in soils can lead to
                      nitrogen (N) losses through ammonia (NH3) emission or
                      nitrate (NO3−) leaching. Oxidized biochar has great
                      potential to mitigate N losses due to its strong adsorption
                      capacity; however, the effects of oxidized biochar in
                      different soils treated with slurry are currently unclear.
                      Here, we investigated the effect of untreated and oxidized
                      biochar (applied at a rate of 50 kg C m−3 slurry) on
                      reducing N losses in a laboratory experiment with three
                      different soils (loamy sand, sandy loam, loam) amended with
                      cattle slurry at an application rate of 73 kg N ha−1.
                      Oxidized biochar reduced NH3 emissions by $64–75\%$ in all
                      soils, whereas untreated biochar reduced NH3 emissions by
                      $61\%$ only in the loamy sand. Oxidized biochar
                      significantly reduced the NO3− content in the soil
                      solution of the loamy sand in the early phase of the
                      incubation and led to a significantly higher NO3−
                      concentration in the same soil compared with the slurry-only
                      treatment at the end of the experiment, indicating a
                      significant increase in NO3− retention in this organic
                      C–poor soil. We conclude that oxidized biochar can reduce
                      N losses, both in the form of NH3 emission and NO3−
                      leaching, from cattle slurry applied to soil, particularly
                      in soil with soil organic carbon $content <1\%$ and pH <5
                      (i.e., oxidized biochar can serve as a means for improving
                      the quality of marginal and acidic soils).},
      cin          = {IBG-3},
      ddc          = {630},
      cid          = {I:(DE-Juel1)IBG-3-20101118},
      pnm          = {2173 - Agro-biogeosystems: controls, feedbacks and impact
                      (POF4-217)},
      pid          = {G:(DE-HGF)POF4-2173},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {36327389},
      UT           = {WOS:000881855100001},
      doi          = {10.1002/jeq2.20424},
      url          = {https://juser.fz-juelich.de/record/917543},
}