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@ARTICLE{Reichel:908533,
      author       = {Reichel, Rüdiger and Kamau, Catherine Wambui and Kumar,
                      Amit and Li, Zhijie and Radl, Viviane and Temperton, Vicky M
                      and Schloter, Michael and Brüggemann, Nicolas},
      title        = {{S}pring barley performance benefits from simultaneous
                      shallow straw incorporation and top dressing as revealed by
                      rhizotrons with resealable sampling ports},
      journal      = {Biology and fertility of soils},
      volume       = {58},
      number       = {4},
      issn         = {0178-2762},
      address      = {Heidelberg},
      publisher    = {Springer},
      reportid     = {FZJ-2022-02669},
      pages        = {375 - 388},
      year         = {2022},
      abstract     = {from leaching. In poorly fertilized soil, excessive
                      immobilization may limit nutrient availability and thus
                      plant growth. Littleis known about the impact of a shallow
                      straw incorporation on soil microbial regulation of
                      top-dressing fertilizer nutrientsand spring crop
                      establishment. We aimed to evaluate if wheat straw in
                      combination with mineral fertilizer has more positiveeffects
                      on plant performance than mineral fertilization alone and if
                      this relates to changes of the extractable C:N:P ratio
                      andmicrobial activity close to the roots. In order to
                      conduct small-scale sampling with minimal disturbance during
                      growth ofspring barley (Hordeum vulgare L.), we developed
                      rhizotrons with resealable ports. Rhizotrons were filled
                      with loamy-sandysoil and fertilized with an equivalent of
                      150 kg N and 80 kg P ha−1. Half of the rhizotrons received
                      the top dressing togetherwith 4500 kg wheat straw-C ha−1.
                      Throughout a 90-day greenhouse experiment, we analyzed soil
                      C:N:P dynamics, and carbondioxide (CO2) and nitrous oxide
                      (N2O) emission, together with microbial biomass, selected
                      bacterial genes (abundance), andtranscripts (activity) in
                      bulk and root-affected soil at multiple times. We focused on
                      nitrifiers and denitrifiers and linked ourdata to barley
                      growth. Interactions between straw and roots caused shifts
                      towards larger C:P and C:N ratios in root-affectedsoil.
                      These shifts were associated with increased 16S rRNA
                      transcripts and denitrifier activities. Straw increased
                      microbialbiomass by $124\%$ in the topsoil and at the same
                      time increased root biomass by $125\%$ and number of tillers
                      by $80\%.$ Weconcluded that microbial activation at the
                      root-straw interface may positively feed back on soil
                      nutrient regulation and plantperformance. Further research
                      has to evaluate if plant roots actively prime mining of
                      previously immobilized nutrients inthe straw detritusphere
                      or if effects of pathogen suppression and growth promotion
                      are dominating.},
      cin          = {IBG-3},
      ddc          = {640},
      cid          = {I:(DE-Juel1)IBG-3-20101118},
      pnm          = {2173 - Agro-biogeosystems: controls, feedbacks and impact
                      (POF4-217) / BonaRes (Modul A, Phase 3): INPLAMINT -
                      Erhöhung der landwirtschaftlichen
                      Nährstoffnutzungseffizienz durch Optimierung von
                      Pflanze-Boden-Mikroorganismen-Wechselwirkungen, Teilprojekt
                      A (031B1062A)},
      pid          = {G:(DE-HGF)POF4-2173 / G:(BMBF)031B1062A},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000756192200001},
      doi          = {10.1007/s00374-022-01624-1},
      url          = {https://juser.fz-juelich.de/record/908533},
}