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InBeNeFa

InBeNeFa


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About the Book

Die große Brennnessel (Urtica dioica) kann auf landwirtschaftlichen Standorten unter unterschiedlichsten Umweltbedingungen angebaut werden und ermöglicht die Bereitstellung hochwertiger Faserrohstoffe. Dabei betragen die Fasergehalte der bis ins letzte Jahrzehnt auf größeren Flächen angebauten Pflanzen ca. 10 - 12 %. Neuere, vor allem im Projektverlauf angepflanzte, Klone zeigen beim Fasergehalte Potentiale von bis zu 22 %. Da bisher keine Ergebnisse von großflächigen Feldversuchen > 0,5 ha vorlagen, waren deren Etablierung und Untersuchung hinsichtlich Ertrag und Qualität der Pflanzen bzw. daraus gewonnener Fasern ein wesentlicher Forschungsschwerpunkt. Zurück greifend auf Ergebnisse von vorherigen Forschungsvorhaben konnte durch den Projektpartner IFP ausreichend Pflanzenmaterial der Klone L2, L6 und L18 zur Verfügung gestellt werden und auf den zwei Projektstandorten der beteiligten Landwirtschaftsbetriebe erfolgreich etabliert werden. Umfangeiche Bonituren des Projektpartners 3N in enger Zusammenarbeit mit den Landwirten haben gezeigt, dass sowohl die Bestandsetablierung 2015 als auch die Jugendentwicklung 2016 bis zur den beiden Ernten 2017 und 2018 eine deutliche Verbesserung des Ertragspotentials erwarten lassen. Ein Einfluss der Pflanzendichte (2 bzw. 3 Pfl. m-2) scheint erkennbar, kann aber nicht abschließend validiert werden wie auch der direkte Klonvergleich. Die Ergebnisse der 3 bzw. 4 Versuchsjahre fallen aufgrund der teils extrem unterschiedlichen Wachstumsbedingungen sehr heterogen aus. Im Mittel ergibt sich jedoch die Schlussfolgerung, dass eine gesteigerte Stickstoffdüngung (180 auf 250 kg N ha-1) nicht notwendig scheint, eine Erhöhung der Kaliumdüngung von 200 auf 300 kg K2O ha-1 dagegen auf dem untersuchten Standort zu positiven Effekten führt. Neben der etablierten vegetativen Vermehrung ist die Entwicklung von wissenschaftlichen Grund-lagen für die Erzeugung und konventionelle Aussaat von in vitro erzeugten somatischen Embryoiden durch das IFP e
About the Author: Dr. Holger Fischer, Jahrgang 1961, ist Chemiker und seit 1997 am Faserinstitut Bremen e.V. im Bereich Nachwachsende Rohstoffe, Naturfasern und Nachhaltigkeit tätig. Seine Arbeitsschwerpunkte sind enzymatische Fasermodifikation, Fasercharakterisierung, Naturfasern, Faseroberflächenmodifizierung, Naturfaser verstärkte Verbundwerkstoffe und Biocomposite.


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Product Details
  • ISBN-13: 9783750421530
  • Publisher: Books on Demand
  • Publisher Imprint: Books on Demand
  • Height: 210 mm
  • No of Pages: 116
  • Spine Width: 6 mm
  • Weight: 199 gr
  • ISBN-10: 3750421536
  • Publisher Date: 22 Nov 2019
  • Binding: Paperback
  • Language: German
  • Returnable: N
  • Sub Title: Verbundvorhaben: Entwicklung einer industriellen Bereitstellungskette von Brennnesseljungpflanzen bis zur Nesselfaser
  • Width: 148 mm


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