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@INPROCEEDINGS{Collier:256133,
      author       = {Collier, Leonardo S. and Eichler-Loebermann, Bettina and
                      Jablonowski, Nicolai David},
      title        = {{D}igested {S}ugar {C}ane {W}astes {C}an {I}mprove the
                      {E}arly {G}rowth of {B}razilian {L}eguminous {T}rees and
                      {S}oil {C}hemical {P}arameters},
      reportid     = {FZJ-2015-06142},
      year         = {2015},
      abstract     = {Agroforestry systems in the Brazilian Cerrado region can
                      mitigate negative environmental effects of agriculture in
                      this area. Digestates as remaining by-product of the biogas
                      process were proofed to have a good fertiliser value.
                      However, application of digestates to tropical trees is not
                      evaluated yet. A greenhouse experiment was conducted at
                      Forschungszentrum Jülich, Germany, from August to December
                      2014. The leguminous tree species Enterolobium
                      contortisiliquum (Tamboril) was cultivated in 5 l pots with
                      two different Oxisols brought from the Cerrado region,
                      whereas one soil was taken from an agroforestry field the
                      other soil was taken from field used for maize and
                      livestock. Soils were amended with digestates based on a
                      blend with filter cake $(70\%$ w/w) and bagasse in five
                      replications in three doses (192 ml per pot; corresponding
                      to 33 m−3 ha) in the 7th, 9th and 11th week of tree
                      cultivation. A control was established without any supply of
                      the digestates. We used the protocol of chemical soil
                      analysis from EMBRAPA (Brazil) to analyse pH, organic C and
                      the available P and K contents in the soil at the end of the
                      experiment. The trees (stem+leave and roots) were weighted
                      and the plant tissue was analysed for the concentration of
                      nutrients. When the digestate was applied the length of
                      Tamboril plants increased $(28\%),$ more shoot biomass (17
                      $\%)$ and less root biomass $(12\%)$ were produced in
                      comparison to the control (average of all soils). The N and
                      P concentration in plant biomass did not show significant
                      differences but tended to increase for the digestate
                      treatments. Furthermore, with the digestate application the
                      soil organic C (1.97 $\%)$ and thebioavailable P content
                      (87.6 mg kg−1) were higher than in the control. The soil
                      pH was not affected by the treatments. Higher tree biomasses
                      were always found for the agroforestry soil. The results
                      showed that the application of digestates can have
                      advantages for the early development of tropical trees.
                      However, further studies under natural conditions in the
                      Cerrado region are necessary.},
      month         = {Sep},
      date          = {2015-09-16},
      organization  = {Tropentag, Berlin (Germany), 16 Sep
                       2015 - 18 Sep 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/256133},
}