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@INPROCEEDINGS{Jablonowski:915939,
      author       = {Jablonowski, Nicolai David and Ohrem, Benedict and Cohnen,
                      Jens and von Gillhaussen, Philipp and Cossel, Moritz von},
      title        = {{C}omparing various weed treatments and their influence on
                      the establishment and biomass yield of {S}ida hermaphrodita
                      {L}. {R}usby under field conditions},
      reportid     = {FZJ-2022-05802},
      year         = {2022},
      abstract     = {Aim and approach used: The perennial herbaceous plant Sida
                      hermaphrodita L. Rusby (hereafter referred to as Sida) has
                      been investigated in the recent years with regard to its
                      potential as a promising energy crop for both solid fuel and
                      biogas production. However, its successful establishment in
                      the field remains a crucial bottleneck, and needs particular
                      care to guarantee sufficient biomass yield in subsequent
                      years. To investigate in how far Sida can be established in
                      competition with weeds, a field experiment has been
                      implemented in Western Germany: Sida root cuttings were
                      planted in a density of 2 plants/m2, on a total area of 420
                      m2 in March 2021. This field trial was aimed at identifying
                      the most non-invasive and sustainable establishing practice
                      for Sida under both ecological and economical aspects. Five
                      treatments were tested regarding their effect on the local
                      weed establishment and hence their competitive effects on
                      the target Sida plants, consisting of four replicates, each
                      3x6 m, in a completely randomized design: (i) a layer of
                      Miscanthus mulch, (ii) manual weeding, (iii) herbicide
                      application, (iv) cover-cropping with Trifolium repens L.
                      (living mulch), and (v) negative control. In November 2021,
                      weed species’ relative abundance and species specific
                      ground cover were determined in each sub-plot. Tiller number
                      and biomass yield of the target crop Sida will be evaluated
                      in spring 2022 for each treatment, aiming for the
                      identification of the most suitable and sustainable weed
                      treatment during Sida establishment and in the long-term.
                      The Sida biomass development will be regularly monitored in
                      reference to the co-occurring weeds during the following
                      years.Scientific innovation and relevance: The
                      identification of a successful, low-cost, environmental
                      friendly and sustainable Sida-establishment practice is
                      needed to guarantee a successful plant establishment and
                      high biomass yields in return. Identifying alternative
                      cropping systems is important since the application of
                      broad-spectrum herbicides such as glyphosate to suppress
                      weeds should be reduced on EU level. Additionally,
                      evaluating the ability of Sida to compete against different
                      degrees of weed pressure during its establishment phase is
                      important to estimate the initial investment needs (e.g.
                      weed control, etc.) and the resulting biomass yields.Results
                      or preliminary results and conclusions: During the
                      vegetation period in 2021, it was shown that Sida growth was
                      highly affected by weeds in all treatments, except for
                      “manual weed control”. However, the treatments had
                      different effects on the weed’s relative abundance and
                      species composition, while Miscanthus mulch suppressed most
                      weed species except for Cirsium arvense. In spring 2022, the
                      biomass yields of Sida will be determined and statistically
                      analyzed with regard to both the applied treatments and the
                      determined weed abundance. Based on these results,
                      preliminary conclusions will be drawn and presented at the
                      EUBCE 2022.},
      month         = {May},
      date          = {2022-05-09},
      organization  = {30th European Biomass Conference $\&$
                       Exhibit, online (Germany), 9 May 2022 -
                       12 May 2022},
      subtyp        = {Invited},
      cin          = {IBG-2},
      cid          = {I:(DE-Juel1)IBG-2-20101118},
      pnm          = {2171 - Biological and environmental resources for
                      sustainable use (POF4-217)},
      pid          = {G:(DE-HGF)POF4-2171},
      typ          = {PUB:(DE-HGF)6},
      url          = {https://juser.fz-juelich.de/record/915939},
}