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@ARTICLE{Reichel:849681,
      author       = {Reichel, Rüdiger and Wei, Jing and Islam, Muhammad S. and
                      Schmid, Christoph and Wissel, Holger and Schröder, Peter
                      and Schloter, Michael and Brüggemann, Nicolas},
      title        = {{P}otential of {W}heat {S}traw, {S}pruce {S}awdust, and
                      {L}ignin as {H}igh {O}rganic {C}arbon {S}oil {A}mendments to
                      {I}mprove {A}gricultural {N}itrogen {R}etention {C}apacity:
                      {A}n {I}ncubation {S}tudy},
      journal      = {Frontiers in plant science},
      volume       = {9},
      issn         = {1664-462X},
      address      = {Lausanne},
      publisher    = {Frontiers Media},
      reportid     = {FZJ-2018-03817},
      pages        = {900},
      year         = {2018},
      abstract     = {Plants like winter wheat are known for their insufficient N
                      uptake between sowing and the following growing season.
                      Especially after N-rich crops like oilseed rape or field
                      bean, nitrogen retention of the available soil N can be
                      poor, and the risk of contamination of the hydrosphere with
                      nitrate (NO3-) and the atmosphere with nitrous oxide (N2O)
                      is high. Therefore, novel strategies are needed to preserve
                      these unused N resources for subsequent agricultural
                      production. High organic carbon soil amendments (HCA) like
                      wheat straw promote microbial N immobilization by
                      stimulating microbes to take up N from soil. In order to
                      test the suitability of different HCA for immobilization of
                      excess N, we conducted a laboratory incubation experiment
                      with soil columns, each containing 8 kg of sandy loam of an
                      agricultural Ap horizon. We created a scenario with high
                      soil mineral N content by adding 150 kg NH4+-N ha-1 to soil
                      that received either wheat straw, spruce sawdust or lignin
                      at a rate of 4.5 t C ha-1, or no HCA as control. Wheat straw
                      turned out to be suitable for fast immobilization of excess
                      N in the form of microbial biomass N (up to 42 kg N ha-1),
                      followed by sawdust. However, under the experimental
                      conditions this effect weakened over a few weeks, finally
                      ranging between 8 and 15 kg N ha-1 immobilized in microbial
                      biomass in the spruce sawdust and wheat straw treatment,
                      respectively. Pure lignin did not stimulate microbial N
                      immobilization. We also revealed that N immobilization by
                      the remaining straw and sawdust HCA material in the soil had
                      a greater importance for storage of excess N (on average 24
                      kg N ha-1) than microbial N immobilization over the 4
                      months. N fertilization and HCA influenced the abundance of
                      ammonia oxidizing bacteria and archaea as the key players
                      for nitrification, as well as the abundance of denitrifiers.
                      Soil with spruce sawdust emitted more N2O compared to soil
                      with wheat straw, which in relation released more CO2,
                      resulting in a comparable overall global warming potential.
                      However, this was counterbalanced by advantages like N
                      immobilization and mitigation of potential NO3- losses.},
      cin          = {IBG-3},
      ddc          = {570},
      cid          = {I:(DE-Juel1)IBG-3-20101118},
      pnm          = {255 - Terrestrial Systems: From Observation to Prediction
                      (POF3-255)},
      pid          = {G:(DE-HGF)POF3-255},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:30002668},
      UT           = {WOS:000436569300001},
      doi          = {10.3389/fpls.2018.00900},
      url          = {https://juser.fz-juelich.de/record/849681},
}