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Biogas production by co-ensiling catch crops and straw, effect of substrate blend and microbial communities


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Perschke, YML; Feng, L; Fontaine, D; Nikolausz, M; da Rocha, UN; Borim Carrêa, F; Ward, AJ; Eriksen, J; Sørensen, P and Møller, HB (2019) Biogas production by co-ensiling catch crops and straw, effect of substrate blend and microbial communities. Poster at: 16th IWA World Conference, Delft, the Netherlands, 23-27 June 2019.

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The combination of catch crop (CC) and barley straw(S) for biogas production was investigated in order to evaluate the ensiling process in batch assay and in continuous process. Based on two new agriculture strategies designed to produce energy and improve nutrient cycling in organic farming are being evaluated, one of them consisting on the harvest of straw and catch crop in different periods whereas the other strategy consists on harvesting them at the same time. Catch crops is promoted to reduce nutrient leaching during rainy season and straw that is not used for animal feeding or bedding is generally left in the field. Mixtures of CC and S provides several advantages: 1) Provides adequate TS for silage, 2) Absorbs the silage effluent, 3) Produces high LAB activity, and 4) Provides an optimal C/N for anaerobic digestion (AD). The effect of feeding compositions (straw or manurea ddition) on the microbial community structures were also investigated.

EPrint Type:Conference paper, poster, etc.
Type of presentation:Poster
Subjects: Crop husbandry > Post harvest management and techniques
Research affiliation: Denmark > Organic RDD 3 > NutHY
Deposited By: Eriksen, Professor Jørgen
ID Code:37581
Deposited On:19 Mar 2020 13:01
Last Modified:19 Mar 2020 13:01
Document Language:English
Refereed:Not peer-reviewed

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