Anaerobic digestion of co-ensiled cover crop and barley straw: Effect of co-ensiling ratios, manure addition and impact on microbial community structure

Feng, Lu; Perschke, Yolanda Maria Lemes; Fontaine, Doline; Nikolausz, Marcell; Ward, Alastair James; Rocha, Ulisses Nunes da; Corrêa, Felipe Borim; Eriksen, Jørgen; Sørensen, Peter; Møller, Henrik Bjarne

doi:10.1016/j.indcrop.2019.112025

Cited by 17 publications

(6 citation statements)

References 53 publications

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“…The proportion of straw DM varied between 0 and 0.71 of the total DM. The details regarding the anaerobic digestion setup are further described in Feng et al (2019b).…”

Section: Anaerobic Digestionmentioning

confidence: 99%

Nitrogen and Sulfur Availability in Digestates from Anaerobic Co-digestion of Cover Crops, Straw and Cattle Manure

Fontaine

Feng

Labouriau

et al. 2019

J Soil Sci Plant Nutr

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Anaerobic digestion (AD) has the potential to enhance the availability of nitrogen (N) from green manures; however, part of the sulfur (S) is lost with the biogas. In this study, the N and S availabilities from untreated and digested cover crop (CC) and straw mixtures were measured after application to soil in the laboratory. In addition, a microplot experiment was carried out to assess the N availability in a spring barley crop. A CC consisting of red clover (Trifolium pratense L.) and chicory (Cichorium intybus L.) was harvested and ensiled with barley straw (Hordeum vulgare L.) at different ratios (1:0, 10:1 and 3:1). The silages were either digested alone or co-digested with cattle manure (CM) in continuously fed anaerobic reactors. Six months after soil application, the net inorganic N release was − 7%, 15% and 25% of total N for untreated CC:straw ratios of 3:1, 10:1 and 1:0, respectively. AD significantly increased the net inorganic N release of these plant materials to 5%, 26% and 38% (mono-digestion) and 40%, 41% and 43% (co-digestion with CM). Results from the laboratory experiment corroborated the field experiment in which AD significantly increased the nitrogen fertiliser replacement value (NFRV) of the CC:straw from 19 to 41% of total N applied. Gaseous loss of S up to 30% was observed during AD while the total N content remained unchanged. Sulfate from untreated CC:straw and digestates was immobilised soon after application to soil, resulting in low availability of inorganic S. Digestion of CC and straw significantly reduced N immobilisation but clearly did not contribute to inorganic S supply.

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“…The proportion of straw DM varied between 0 and 0.71 of the total DM. The details regarding the anaerobic digestion setup are further described in Feng et al (2019b).…”

Section: Anaerobic Digestionmentioning

confidence: 99%

Nitrogen and Sulfur Availability in Digestates from Anaerobic Co-digestion of Cover Crops, Straw and Cattle Manure

Fontaine

Feng

Labouriau

et al. 2019

J Soil Sci Plant Nutr

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“…Previous studies showed that adding L. plantarum could decrease the DM loss, pH, ammonia-N (NH 3 -N) content and butyric acid (BA) concentration, increase the LA concentration and change the bacterial community composition of silage (Ren et al, 2020;Xu et al, 2020;Zhang et al, 2021). Moreover, ensiling with cellulase could degrade part of the cellulose, thus providing a large amount of WSCs for LAB utilization of S. arundinaceum silage (Feng et al, 2020;Xu et al, 2020). Therefore, it is inferred that S. arundinaceum could potentially be used as a feed source for animals if L. plantarum and cellulase were applied during ensiling.…”

Section: Introductionmentioning

confidence: 99%

Effects of different cutting methods and additives on the fermentation quality and microbial community of Saccharum arundinaceum silage

Zheng

et al. 2022

Front. Microbiol.

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To develop a new high-yielding and polysaccharide-containing forage resource for livestock, the effects of different cutting methods and additives on Saccharum arundinaceum silage were evaluated. The wilted S. arundinaceum were chopped and knead-wired. The silages from each cutting method were treated with Lactobacillus plantarum (LP), cellulase (CE) and the combination of LP and CE (LP + CE) for 3, 7, 15, 30, and 60 days. Compared with the CK treatment, CE treatment exhibited better effects in the degradation of neutral detergent fiber (NDF), LP exhibited a better performance in preserving the content of dry matter (DM), and adding LP + CE significantly enhanced (P < 0.05) the contents of lactic acid (LA), crude protein (CP) and DM and significantly reduced (P < 0.05) the pH and NDF content during ensiling. In addition, both additives exerted a remarkable effect on the silage bacterial community (P < 0.05), with a dramatic increase in the Lactobacillus abundance and a decrease in the abundance of Enterobacter. Lactic acid bacteria (LAB) became the most dominant bacteria that affected the fermentation quality of LP and LP + CE silages. Meanwhile, chopped silages showed better fermentation quality and nutrient preservation and a higher abundance of LAB. Our research indicated that the chopped S. arundinaceum ensiling with LP + CE could exert a positive effect on LA fermentation and preservation of nutrient substances by shifting the bacterial community. In conclusion, S. arundinaceum can serve as a new silage resource for feed utilization by the ensiling method of LP + CE-chopped.

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“…Their results showed that co-ensiling improved stability and increased methane yield by approximately 5-10% [89]. Furthermore, they noted that manure addition to the digestion process led to a higher methane yield and buffer capacity [91].…”

Section: Cover Crop For Biogas Productionmentioning

confidence: 99%

A Review on Potential Biofuel Yields from Cover Crops

Yang,

Lamont,

Liu

et al. 2023

Fermentation

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Millions of hectares of cover crops are planted in the U.S. and European Union to manage soil erosion, soil fertility, water quality, weeds, and climate change. Although only a small percentage of cover crops are harvested, the growing cover crop planting area provides a new biomass source to the biofuel industry to produce bioenergy. Oilseed crops such as rapeseed, sunflower, and soybean are commodities and have been used to produce biodiesel and sustainable aviation fuel (SAF). Other cover crops such as cereal rye, clover, and alfalfa, have been tested on small or pilot scales to produce cellulosic ethanol, biogas, syngas, bio-oil, and SAF. Given the various biofuel products and pathways, this review aimed to provide a comprehensive comparison of biofuel yield from different cover crops and an overview of the technologies that have been employed to improve biofuel yield. It was envisioned that gene-editing tools might be revolutionary to the biofuel industry, the work on cover crop supply chain will be critical for system scaleup, and high-tolerant technologies likely will be needed to handle the high compositional heterogeneity and variability of cover crop biomass for biofuel.

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Anaerobic digestion of co-ensiled cover crop and barley straw: Effect of co-ensiling ratios, manure addition and impact on microbial community structure

Cited by 17 publications

References 53 publications

Nitrogen and Sulfur Availability in Digestates from Anaerobic Co-digestion of Cover Crops, Straw and Cattle Manure

Nitrogen and Sulfur Availability in Digestates from Anaerobic Co-digestion of Cover Crops, Straw and Cattle Manure

Effects of different cutting methods and additives on the fermentation quality and microbial community of Saccharum arundinaceum silage

A Review on Potential Biofuel Yields from Cover Crops

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