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Utilisation of Miscanthus x giganteus L. Based C-Rich Fertilisers for N Immobilisation and Microbial Biomass Build-Up in a Crop Rotation

  • Cultivation of perennials such as Miscanthus x giganteus Greef et Deuter (Mis) combines the provision of ecosystem services and the generation of additional carbon sources for farming. The potential of Mis based fertilisers, regarding immobilisation of inorganic nitrogen (N) and build-up of soil organic matter (SOM), was tested in a field trial. Therefore, a crop rotation of winter barley (Hordeum vulgare L.), mustard (Sinapis alba L.) as catch crop, sugar beet (Beta vulgaris L.) and winter wheat (Triticum aestivum L.) was set up. The tested treatments were a mixture of Cattle Slurry (CS) and Mis, a mixture of CS and Wheat Straw (CS–WS), Cattle Manure (CM) from Mis shredded bedding, CM from WS shredded bedding, a pure CS, Urea Ammonium Nitrate (UAN) and a treatment without any N applied (NoN). When the carbon-rich fertilisers (both mixtures and manures) were applied to cereals, they led to a slight N immobilisation compared to pure CS, whereas differences were mostly not significant. Furthermore, Mis fertilisers were at least as efficient as WS-based organic fertilisers in inducing a contribution of SOM build-up and in reducing inorganic N before winter and thus preventing N losses, whereas differences were mostly not significant.

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Document Type:Article
Author:Michael Stotter, Florian Wichern, Ralf Pude, Martin Hamer
Parent Title (English):Agronomy
Article Number:2390
Number of pages:19
Place of publication:Basel
Publishing Institution:Hochschule Bonn-Rhein-Sieg
Date of first publication:2021/11/24
Copyright:© 2021 by the authors. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license.
Funding:The research was carried out within the framework of the INTERREG V A program Germany-Netherland—Co-financed by the European Regional Development Fund (ERDF) and the Dutch Ministry of Economic Affairs, MWIDE NRWand the provinces of Gelderland, Limburg and Noord-Brabant.
Keyword:C sequestration; C source; Miscanthus bedding; Miscanthus x giganteus; Miscanthus-carbon; N immobilisation; fertiliser from Miscanthus; microbial biomass C; microbial biomass N; soil organic matter
Departments, institutes and facilities:Internationales Zentrum für Nachhaltige Entwicklung (IZNE)
Dewey Decimal Classification (DDC):6 Technik, Medizin, angewandte Wissenschaften / 63 Landwirtschaft / 630 Landwirtschaft und verwandte Bereiche
3 Sozialwissenschaften / 33 Wirtschaft / 333.7 Natürliche Ressourcen, Energie und Umwelt
Entry in this database:2021/12/01
Licence (German):License LogoCreative Commons - CC BY - Namensnennung 4.0 International