Browsing by Person "Jablonowski, Nicolai David"

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Bioenergy potential of Europe's perennial and biennial wildflowers: a combustion performance benchmark
(2025) von Cossel, Moritz; Hieber, Caroline; Iqbal, Yasir; Berwanger, Eva; Lebendig, Florian; Müller, Michael; Jablonowski, Nicolai David; von Cossel, Moritz; Biobased Resources in the Bioeconomy (340b), University of Hohenheim, Stuttgart, Germany; Hieber, Caroline; Biobased Resources in the Bioeconomy (340b), University of Hohenheim, Stuttgart, Germany; Iqbal, Yasir; College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, China; Berwanger, Eva; Biobased Resources in the Bioeconomy (340b), University of Hohenheim, Stuttgart, Germany; Lebendig, Florian; Institute of Energy Materials and Devices, IMD‐1: Structure and Function of Materials, Forschungszentrum Jülich GmbH, Jülich, Germany; Müller, Michael; Institute of Energy Materials and Devices, IMD‐1: Structure and Function of Materials, Forschungszentrum Jülich GmbH, Jülich, Germany; Jablonowski, Nicolai David; Institute of Bio‐ and Geosciences, IBG‐2: Plant Sciences, Forschungszentrum Jülich GmbH, Jülich, Germany
The European Commission prioritizes addressing environmental issues like agrobiodiversity loss within a thriving bioeconomy's defossilization. This study investigates eight native European herbaceous flowering wild plant species (WPS) like common tansy (Tanacetum vulgare L.) and wild teasel (Dipsacus fullonum L.) as co‐substrates for pellet combustion, aiming for more biodiversity‐friendly bioenergy cropping systems. A long‐term field trial in southwest Germany examined dry matter (DM) yield and biochemical composition's influence on combustion properties for these WPS and two common bioenergy crops, Miscanthus (Miscanthus x giganteus Greef et Deuter) and Sida (Sida hermaphrodita L. var. Rusby), over two growing seasons. All eight WPS showed suitable combustion properties, comparable to Sida, with significantly higher ash melting temperatures than Miscanthus. This is largely attributed to elevated calcium (5.6–15.3 mg g−1 DM) and magnesium (0.6–2.4 mg g−1 DM) contents. A consistent WPS biomass composition is suggested by no significant year effect. Additionally, lower SO2 and HCl fugacity indicated more environmentally friendly combustion than Miscanthus. However, only a few WPS matched Miscanthus's high DM yield (6.0–12.3 Mg ha−1). This underscores the need for broader WPS investigation to find effective combined solutions for bioenergy and rural environmental protection.
Grower perspectives on perennial wild plant mixtures for biogas production in Germany
(2024) Becker, David; Ilic, Anna-Maria; Reichardt, Franziska Julia; Hartung, Jens; Beck, Janna; Jablonowski, Nicolai David; Lewin, Eva; von Cossel, Moritz
‘Perennial wild plant mixtures’ (WPM) cultivation is a novel approach to combine biomass provisioning for biogas production with biodiversity enhancement at field scale in Germany. But the methane yield is about 40% lower compared with silage maize. Therefore, the cultivation of WPM is incentivized with about 250–927 Euro per hectare and year. However, agronomic and best management practices of WPM cultivation are unclear, so that large parts of the yield potential of WPM are likely to remain untapped. Hence, this study aims to shed light on farmers’ current perspectives and experiences with WPM cultivation by carrying out a nationwide survey in 2021. The feasibility of inferential statistics was examined in detail, but was not possible due to an insufficient number of responses. Nevertheless, the descriptive analysis revealed valuable information on farmers’ experiences with and their motives for cultivating WPM such as biodiversity enhancement and landscape beauty. Generally, WPM were proven to be much less productive compared with common biogas crops such as maize. Nevertheless, 59% of the farmers cultivated WPM on less favorable soil, and 67% of the farmers used nitrogen fertilization rates of less than or equal to 50 kg ha−1, resulting in generally higher yields compared with results from unfertilized areas. However, while there is common agreement on the positive effects of WPM cultivation on agrobiodiversity, more agronomic research on best management practices is required to make WPM more competitive to common biogas crops without additional subsidies.