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@INPROCEEDINGS{Leal:256102,
      author       = {Leal, D. P. B. and Blossfeld, Stephan and Sousa, S. M. and
                      Nagel, Kerstin and Jablonowski, Nicolai David},
      title        = {{S}orghum {R}oot {A}rchitecture {S}ubjected to
                      {B}iogas-{D}igestate {A}pplication},
      school       = {IBG-2},
      reportid     = {FZJ-2015-06122},
      year         = {2015},
      abstract     = {Plants obtain water and mineral nutrients from the soil due
                      their capacity to develop extensive root systems. To achieve
                      greater sustainability within agriculture new strategies
                      that will either reduce the nutrient demand of the crop or
                      promote greater root recovery of the added fertilizer are
                      required. Genetic variation for nutrient uptake can be
                      exploited in breeding programs to improve sustainable
                      production. In the present study, two genotypes of Sorghum
                      bicolor subsp. bicolor (line 083 and line 134), currently
                      used by the Embrapa acid soil breeding program, were used.
                      These two sorghum genotypes differ mainly in relation to
                      root system architecture, P uptake and grain yield. Thus, we
                      aimed to assess which sorghum genotype shows higher biomass
                      and nutrient uptake under organic and mineral fertilizer
                      addition and the differences in root system architecture and
                      rhizosphere pH using non-invasive methods. In a rhizotron
                      experiment we evaluated the effects of the biogas-digestate
                      (40 Mg ha-1) applied as a fertilizer on root architecture,
                      rhizosphere pH, nutrient uptake and biomass development of
                      two sorghum genotypes in comparison to NPK fertilizer (five
                      replicates). The biogas-digestate was composed of maize
                      silage as the major feedstock, and minor amounts of chicken
                      manure. Fertilizers were applied into the peat substrate.
                      Plants were grown for 21 days. The measurements include:
                      shoot and root dry mass; shoot nutrients content (C, N, P
                      and K); leaf area; chlorophyll content (SPAD); root
                      architecture; and soil elemental analyses. Rhizosphere pH
                      was measured with planar optodes along the experimental
                      period. Data are currently under analyses. We believe that
                      our findings can enhance the understanding of rhizosphere pH
                      dynamics and root system architecture traits of these two
                      sorghum genotypes aiming to improve soil fertilization
                      practices.},
      month         = {Jul},
      date          = {2015-07-13},
      organization  = {8th Annual International Symposium on
                       Agriculture, Athens (Greece), 13 Jul
                       2015 - 16 Jul 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)6},
      url          = {https://juser.fz-juelich.de/record/256102},
}