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@INPROCEEDINGS{RoblesAguilar:256122,
      author       = {Robles Aguilar, Ana Alejandra and Temperton, Vicky and
                      Blossfeld, Stephan and Jablonowski, Nicolai David},
      title        = {{E}ffect of nitrogen form, p{H} and plant species in the
                      mobilization and acquisition of {P} from a recycled
                      phosphorus fertilizer},
      reportid     = {FZJ-2015-06131},
      year         = {2015},
      abstract     = {World phosphorus resources are limited. Therefore recycling
                      of phosphorus from waste materials is important, and
                      struvite (MgNH4PO46H2O) is a common precipitate recovered
                      from waste water treatments or during anaerobic digestion of
                      manure. Our approach is to evaluate how mobilization of
                      phosphorus may differ when two different species
                      (narrow–leaved Lupin and Maize) are grown in an acidic or
                      alkaline sand with phosphorus added as either struvite or as
                      superphosphate. Nitrogen was applied as ammonium or nitrate
                      as an important factor that could affect phosphorus
                      availability by changing soil pH. The parameters to evaluate
                      the mobilization of phosphorus from struvite were phosphorus
                      uptake, phosphorus present in the soil and comparison of
                      plant performance within the different treatments. Lupines
                      are capable of symbiotically fixing atmospheric nitrogen, as
                      well as to release phosphate-mobilizing carboxylates. These
                      two traits make lupines good candidates forstudying nutrient
                      mobilization in the rhizosphere. In order to observe if
                      citrate (mimicking root exudates) was able to make the P
                      from the struvite more available compared with water, our
                      study also included a flushing experiment with citrate in
                      columns filled with two different sands of acidic and
                      alkaline pH mixed with struvite. We predict that lupine
                      growing on alkaline sand will have better access to
                      phosphorus in struvite (than on acidic sand) due to its
                      ability to acidify the rhizosphere via exudation of
                      carboxylates. Thus we expect lupine to have higher biomass
                      when growing on alkaline sand with an ammonium supply.},
      month         = {Jun},
      date          = {2015-06-21},
      organization  = {Rhizosphere 4, Maastricht
                       (Netherlands), 21 Jun 2015 - 25 Jun
                       2015},
      subtyp        = {After Call},
      cin          = {IBG-2},
      cid          = {I:(DE-Juel1)IBG-2-20101118},
      pnm          = {582 - Plant Science (POF3-582)},
      pid          = {G:(DE-HGF)POF3-582},
      typ          = {PUB:(DE-HGF)24},
      url          = {https://juser.fz-juelich.de/record/256122},
}