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Medientyp:
Elektronischer Konferenzbericht
Titel:
Evaluating the Effects of Various Fertilizers on Safflower (Carthamus Tinctorius) Growth and Performance in Sand Under Outdoor Lysimeter Conditions
Erschienen in:30th European Biomass Conference and Exhibition, EUBCE 2022, online, online, 2022-05-09 - 2022-05-12
Sprache:
Englisch
Entstehung:
Anmerkungen:
Diese Datenquelle enthält auch Bestandsnachweise, die nicht zu einem Volltext führen.
Beschreibung:
Aim and approach used: In terms of a sustainable bio-economy, biogenic materials need to be uncovered to replace fossil resources without competing for food or feed production on finite land resources. In addition, the lignite excavation region in the Lower Rhine area in Western Germany experiences structural changes due to the political decision to phase out the lignite mining to support climate change mitigation. Therefore, the investigation of alternative cropping systems is important for the economic utilization of the marginal sandy areas inside the lignite mining sites, also aiming for the development of local economies. The annual plant safflower (Carthamus tinctorius) has long been used for its oil and coloring potential. It develops deep rooting systems improving the soil quality and can be grown in arid areas. To test its potential as a multi-purpose crop in the reclamation of sandy lignite mining areas, we planted safflower in 1 m3 lysimeters filled with sand under outdoor conditions, applying the following fertilizer treatments: (i) NPK mineral fertilizer, (ii) digestate obtained from a commercial biogas facility operating with maize silage, (iii) DüngMe®, a commercial solid fertilizer produced of dried and pelletized maize-silage-based digestate, (iv) intercropping with the legume Trifolium repens, sown in three seeding densities, equaling 43.75, 87.5 and 175 kg seeds/ha, and (v) no fertilizer application. All fertilizers were applied approx. 20 cm below each planting row equaling 50, 100, or 200 kg N/ha, aiming for depot fertilization, comparable to the CULTAN approach.Scientific innovation and relevance: The smart reclamation of non-utilized sandy mining terraces in the lignite extraction areas offers the benefits of soil improvement and erosion control, supporting biodiversity. Additionally, safflower is used as a multi-purpose crop producing oil and coloring agents, applicable for energy, and as a resource for the chemical or food industry, respectively. The evaluation of the applied cropping ...