Co-ensiling and field wilting investigated as preparation methods for the ensiling of a wet harvested catch crop for biomethane production

C. VAN Vlierberghe, H. Carrere, N. Bernet, G. Santa-Catalina, S. Frederic and R. Escudie

Renewable Energy, 2022, vol. 195, issue C, 1230-1237

Abstract: Early harvested cover crops usually present a high moisture content that makes them difficult to store by ensiling because of effluent production and undesirable butyric fermentation. In order to increase the solid content of ryegrass, field wilting (29.0 %TS) and co-ensiling with wheat straw (27.4% TS) were performed and compared with a direct storage of the crop (18.4% TS). The storage experiments were conducted at lab scale and monitored during 180 days to evaluate the fermentation pathways and changes in microbial community structure and methane potential. The addition of straw did not change the fermentation pathway during the ryegrass silage, while field wilting slowed down and decreased the occurrence of secondary fermentations. Despite the presence of secondary fermentations and VS losses up to 11%, the methane potential was efficiently preserved in all conditions. Wheat straw addition should be considered as an alternative to field wilting when unfavorable weather conditions are met.

Keywords: Anaerobic digestion; Catch crops; Intermediate crops; Silage fermentation; Field wilting, biogas (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0960148122009107
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:195:y:2022:i:c:p:1230-1237

DOI: 10.1016/j.renene.2022.06.078

Access Statistics for this article

Renewable Energy is currently edited by Soteris A. Kalogirou and Paul Christodoulides

More articles in Renewable Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().