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Publications (10 of 12) Show all publications
Hagberg, C., Malyugina, S., Oscarsson, H., Ringmar, A., Wall, H., Wigfeldt, K. & Myrbeck, Å. (2023). Biokol i ströbädd för frigående värphöns för förbättrad arbets- och djurmiljö.
Open this publication in new window or tab >>Biokol i ströbädd för frigående värphöns för förbättrad arbets- och djurmiljö
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2023 (Swedish)Report (Other academic)
Abstract [en]

Biochar in bedding for loose housed laying hens - for the improvement of work and animal environment The aim of this project was to study how the ambient air environment in barns for loose housed laying hens is affected by mixing biochar into the bedding. The objectives were to investigate the bedding’s effect on the ammonia and the dust/particulate matter (PM) concentrations. Studies were performed by laboratory studies and by field trials in aviaries with loose housed laying hens. In the lab study, dust formation was tested by tumbling (stirring) three different types of biochar and one product of wood shavings. Wood shavings were used as a control/comparative bedding material, as it is the most common source of litter in Swedish laying hen flocks. The dust formation was higher for biochar compared to the wood shavings. Additionally, a higher dry matter content in the biochar resulted in higher dust concentrations. Presumably, this is because biochar is a porous material, which easily falls apart during mechanical processing. In practice, the mechanical processing will supposedly not be so forcefully because of e.g., the hens pecking in the bedding. However, it might be an aspect to consider during some work tasks, e.g., removal of the bedding. During the field trials, data of ammonia concentrations and PM were collected in four aviaries with 100 loose housed laying hens per aviary. Each aviary was provided with different mixtures of bedding material. The mixtures were 1) wood shavings and a bacteria/fungi additive, 2) only wood shavings, 3) wood shavings and biochar, and 4) peat or peat mixture (80% peat and 20% wood shavings). The measurements of ammonia were collected with a hand-held aspirator pump, one sample above the slatted flooring and two samples above the bedded flooring. No differences of the ammonia concentrations were obtained in the different aviaries, bedding materials and flooring. Differences in ammonia concentrations were not assumed above the slatted flooring, but above the bedded flooring. In future studies, continuous measurements and more data sampling would be relevant to analyze, to compare differences in the ammonia concentrations, depending on the bedding material, and correlate it to the time of day, the behavior/activity level of the laying hens, etc. The fractions of PM measured during the field trials were PM1, PM2.5, PM4, PM10 and total-PM. In each of the four aviaries, approximately 500 samples were taken with a laser photometer. The results were slightly different compared to the laboratory study. For all the PM fractions, the PM concentrations were highest in the bedding with only wood shavings. An influencing factor may be the dry matter content of the bedding materials, 90% for wood shavings and 70% for biochar. Another aspect is the laying hens’ activation and encouragement to process the bed by pecking, dust bathing etc. Both the laying hens and the eggs, in the aviary with biochar, appeared to have a greyish color at times. This study shows that the dry matter content of bedding materials is important for the dust/PM concentrations in the ambient air in animal production facilities. How different biochar with different properties, e.g. dry matter content and size fractions, affect the behavior of the laying hens (encouragement to process the bedding) is a topic for future research. One conclusion is that different biochar may have very different properties and that these varying properties can have quite different effects on the behavior of the laying hens, animal environment and work environment.

Publisher
p. 40
Series
RISE Rapport ; 2023:134
Keywords
laying hen, bedding, biochar, ammonia, dust, particulate matter, PM, animal welfare, work environment
National Category
Agricultural Science, Forestry and Fisheries
Identifiers
urn:nbn:se:ri:diva-70096 (URN)978-91-89896-21-5 (ISBN)
Note

The project was funded by Stiftelsen Svenska Lantbrukares Olycksfallsförsäkringsfond,SLO-fund, The Royal Swedish Academy of Agriculture and Forestry, (SLO2019-0013).

Available from: 2024-01-17 Created: 2024-01-17 Last updated: 2024-01-31Bibliographically approved
Fjäll, S., Olsson, J., Edström, M., Gunnarsson, C., Westlin, H. & Myrbeck, Å. (2023). CASE STUDY ON SUSTAINABLE AND SELF-SUFFINCENT AGRICULTURE: INTEGRATING GRASS BIOREFINERY, ANEROBIC DIGESTION AND HYDROTHERMAL LIQUEFACTION. In: Proc of EUBCE 2023: . Paper presented at European Biomass Conference and Exhibition, EUBCE 2023. Bologna,Italy. 5 June 2023 through 8 June 2023 (pp. 533-539). ETA-Florence Renewable Energies
Open this publication in new window or tab >>CASE STUDY ON SUSTAINABLE AND SELF-SUFFINCENT AGRICULTURE: INTEGRATING GRASS BIOREFINERY, ANEROBIC DIGESTION AND HYDROTHERMAL LIQUEFACTION
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2023 (English)In: Proc of EUBCE 2023, ETA-Florence Renewable Energies , 2023, p. 533-539Conference paper, Published paper (Refereed)
Abstract [en]

The agricultural industry plays a crucial role in transitioning towards a sustainable and fossil-free future. This article explores the potential of biorefineries using biomass from agriculture to reduce emissions and promote self sufficiency. Regarding a concept that integrated anaerobic digestion, grass and legume protein production, and hydrothermal liquefaction. A case study was conducted in the southwestern part of Sweden, involving interviews with a biogas plant and local farmers. The study analyzed the utilization of input goods in agriculture and evaluated the potential of biomass in the area. To assess the potential for farms to become self-sufficient in fuel, protein feed, and plant nutrients. The results show an overall positive outlook of the biorefinery concept. By utilizing 20% of the available biomass in the area can the biorefinery concept annually produce 100 GWh of biogas, 3800 tonnes of grass and legume protein concentrate and 1200 GWh bio-oil. This could theoretically cover 100 % of the need of soy meal, 44% for nitrogen, 50% for phosphorus and 100% for potassium.

Place, publisher, year, edition, pages
ETA-Florence Renewable Energies, 2023
Keywords
Anaerobic digestion; Bioconversion; Biogas; Farms; Fuel economy; Liquefaction; Proteins; Refining; Agricultural industries; Bio-based products; Biogas plants; Biorefineries; Biorefinery concept; Case-studies; Circular economy; Hydrothermal liquefactions; Plant nutrients; Protein production; Biomass
National Category
Bioenergy
Identifiers
urn:nbn:se:ri:diva-67694 (URN)2-s2.0-85174563317 (Scopus ID)
Conference
European Biomass Conference and Exhibition, EUBCE 2023. Bologna,Italy. 5 June 2023 through 8 June 2023
Note

This publication is part of a project that has received funding from Swedish farmers’ foundation for agricultural research - Stiftelsen Lantbruksforskning.

Available from: 2023-11-03 Created: 2023-11-03 Last updated: 2023-11-21Bibliographically approved
Fogelberg, F., Östlund, J. & Myrbeck, Å. (2023). Effect of cultivar and inoculant on yields of faba beans (Vicia faba minor) and subsequent spring wheat (Triticum aestivum) under Scandinavian cropping conditions. Frontiers in Agronomy, 5, Article ID 1179996.
Open this publication in new window or tab >>Effect of cultivar and inoculant on yields of faba beans (Vicia faba minor) and subsequent spring wheat (Triticum aestivum) under Scandinavian cropping conditions
2023 (English)In: Frontiers in Agronomy, ISSN 2673-3218, Vol. 5, article id 1179996Article in journal (Refereed) Published
Abstract [en]

Inoculation of legumes is generally considered to increase yield and to lower the need of nitrogen (N) fertilization, especially in semiarid regions and on sandy soils. It has not been clear whether inoculation with Rhizobium sp. in cropping of faba beans (Vicia faba minor) under Swedish conditions would improve yield and protein content. In 2015–2016, three faba bean cultivars and two strains of Rhizobium were studied in field trials in Central Sweden, including analyses of N fixation capacities using 15N abundance. The study did not show any effects of inoculation of Rhizobium on yield or protein content of faba beans or subsequent spring wheat yields. Yields of faba beans varied between cultivars but were not connected to inoculation. 15N abundance was influenced by rhizobium. The study cannot support the opinion that, generally, inoculation is beneficial for improved outcome of faba bean cropping under Scandinavian field conditions. No residual effect of inoculation on subsequent spring wheat yield was found. Copyright © 2023 Fogelberg, Östlund and Myrbeck.

Place, publisher, year, edition, pages
Frontiers Media S.A., 2023
Keywords
horse bean, legume cropping, nitrogen, soil improvement, wheat
National Category
Agricultural Science
Identifiers
urn:nbn:se:ri:diva-65549 (URN)10.3389/fagro.2023.1179996 (DOI)2-s2.0-85161391817 (Scopus ID)
Note

Correspondence Address: F. Fogelberg; Section Agriculture and Food, RISE – Research Institutes of Sweden, Uppsala, Sweden. The project was financed by European Union’s Seventh Framework Programme for Research, Technological Development and Demonstration under grant agreement no 613781. 

Available from: 2023-06-28 Created: 2023-06-28 Last updated: 2023-06-28Bibliographically approved
Myrbeck, Å., Salomon, E. & Bark, L. (2022). Deliverable 4.3 Assessment of effects of manure/pasture management on nitrogen and phosphorus losses.
Open this publication in new window or tab >>Deliverable 4.3 Assessment of effects of manure/pasture management on nitrogen and phosphorus losses
2022 (English)Report (Other academic)
Abstract [en]

The POWER project aimed to examine the effectiveness of innovations and best practise in achieving improved pig welfare in Europe. Free-range pasture systems for pigs support the organic principles of natural living, but intensive free-range production is characterized by high risks of nutrient losses, such as nitrogen (N) and phosphorus (P) leaching to surrounding water bodies and also ammonia (NH3) emissions. The scope of this grazing study, with housing pigs on pasture, was eight pig farms located in four countries: Austria, Denmark, Germany and Sweden. Collected farm data showed a large range in values, reflecting the diversity of pasture systems. Average animal density in paddocks per farm varied between 10 and 480 pigs per hectare, with a density in falling order as weaners>fatteners>sows. Vegetation in paddocks varied greatly between farms and also in paddocks within the same farm. Climate, animal density and soil type are important parameters influencing the risk of nutrient losses. Nutrient loads from faeces and urine in paddocks varied with animal density. The calculated loads were rather high in relation to fertilizing needs in crop production at some of the studied farms. This highlights the importance of having enough area for the pigs and/or to limit the period they are hold in the same paddock in order to apply nutrient loads balanced to subsequent crop or vegetation needs. With the highest N load registered in the study, pigs could be held in the paddock approximately one and a half month per year before exceeding the EU regulation of maximum application of 170 kg N per ha with animal manure.

Publisher
p. 26
Series
RISE Rapport ; 2022:105
Keywords
outdoor pigs, paddocks, pig production, environmental impact, ley
National Category
Ecology
Identifiers
urn:nbn:se:ri:diva-60124 (URN)978-91-89711-50-1 (ISBN)
Available from: 2022-09-15 Created: 2022-09-15 Last updated: 2023-06-08Bibliographically approved
MacLaren, C., Mead, A., van Balen, D., Claessens, L., Etana, A., de Haan, J., . . . Storkey, J. (2022). Long-term evidence for ecological intensification as a pathway to sustainable agriculture. Nature Sustainability, 5, 770
Open this publication in new window or tab >>Long-term evidence for ecological intensification as a pathway to sustainable agriculture
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2022 (English)In: Nature Sustainability, E-ISSN 2398-9629, Vol. 5, p. 770-Article in journal (Refereed) Published
Abstract [en]

Ecological intensification (EI) could help return agriculture into a ‘safe operating space’ for humanity. Using a novel application of meta-analysis to data from 30 long-term experiments from Europe and Africa (comprising 25,565 yield records), we investigated how field-scale EI practices interact with each other, and with N fertilizer and tillage, in their effects on long-term crop yields. Here we confirmed that EI practices (specifically, increasing crop diversity and adding fertility crops and organic matter) have generally positive effects on the yield of staple crops. However, we show that EI practices have a largely substitutive interaction with N fertilizer, so that EI practices substantially increase yield at low N fertilizer doses but have minimal or no effect on yield at high N fertilizer doses. EI practices had comparable effects across different tillage intensities, and reducing tillage did not strongly affect yields. © 2022, The Author(s)

Place, publisher, year, edition, pages
Nature Research, 2022
Keywords
Crops, Ecology, Fertilizers, Crop diversity, Crop yield, Fertilizer dose, Field scale, Long-term experiments, Meta-analysis, N fertilizers, Novel applications, Staple crops, Sustainable agriculture, Tillage
National Category
Agricultural Science
Identifiers
urn:nbn:se:ri:diva-59875 (URN)10.1038/s41893-022-00911-x (DOI)2-s2.0-85132880243 (Scopus ID)
Note

Funding details: BB/R020663/1; Funding details: BBS/E/C/000J0300; Funding details: Biotechnology and Biological Sciences Research Council, BBSRC, BBS/E/C/000I0320; Funding text 1: The authors thank everyone who has been involved in designing, maintaining, funding, and collecting and managing data from all LTEs included in this study. We are grateful to the GLTEN ( https://glten.org/ ), funded by the Thirty Percy Foundation for providing meta-data on the LTEs. The Rothamsted Long-term Experiments National Capability (LTE-NC) is supported by the UK BBSRC (BBS/E/C/000J0300) and the Lawes Agricultural Trust. LTEs belonging to SRUC are supported through Scottish Government RESAS Strategic Research Programme. C.M., J. Storkey, A.M. and L.C. were supported by the ‘GLTEN-Africa’ project (BB/R020663/1) funded by the Global Challenge Research Fund programme of the Biotechnology and Biological Sciences Research Council (BBSRC), and J. Six and A.M. also by the BBSRC Soils to Nutrition project (BBS/E/C/000I0320). For the purpose of open access, the authors have applied a Creative Commons Attribution (CC BY) licence to any Author Accepted Manuscript version arising.

Available from: 2022-08-01 Created: 2022-08-01 Last updated: 2023-07-03Bibliographically approved
Myrbeck, Å., Rodhe, L., Hellstedth, M., Kulmala, A., Laakso, J., Lehn, F., . . . Luositarinen, S. (2021). Instruktion till provtagning och analys av stallgödsel.
Open this publication in new window or tab >>Instruktion till provtagning och analys av stallgödsel
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2021 (Swedish)Report (Other academic)
Abstract [en]

This report presents instructions for manure sampling and analysis produced within the project MANURE STANDARDS financed by Interreg Baltic Sea Region Programme (2014-2020). The project developed joint guidelines for taking representative manure samples, recommendations for manure analysis in the laboratories and a farm-level calculation tool for farm-specific manure mass balance calculation. All materials areavailable in English at: https://www.luke.fi/manurestandards/en/frontpage/ 

Publisher
p. 33
Series
RISE Rapport ; 2021:18
Keywords
Stallgödsel, Gödselprovtagning, Gödselanalys, Gödselspridning, Växtnäring, Manure sampling, Manure analysis, Manure nutrients
National Category
Natural Sciences
Identifiers
urn:nbn:se:ri:diva-52482 (URN)978-91-89385-02-3 (ISBN)
Available from: 2021-02-24 Created: 2021-02-24 Last updated: 2023-06-08Bibliographically approved
Råberg, T. & Myrbeck, Å. (2021). Nedbrytningsförsök av torrefierad GROT och biokol.
Open this publication in new window or tab >>Nedbrytningsförsök av torrefierad GROT och biokol
2021 (Swedish)Report (Other academic)
Alternative title[en]
Degradation experiment with torrefied forest residue and pyrolysed biochar
Abstract [sv]

Både torrefierad och pyrolyserad GROT kan ge upphov till långsiktiga kolsänkor i trädgårdsjordar baserad på torv. Pyrolys kräver betydligt högre temperatur än torrefiering så det finns anledning att testa om det torrefierade materialet har de egenskaper som efterfrågas. RISE fick i uppdrag av Sveaskog att göra ett försök där GROT med två olika torrefieringsgrad (skillnad i uppehållstid) jämfördes med biokol. Substraten blandades till 50 % med trädgårdsjord som tillhandahölls av Econova. Jordinkuberingen utfördes i 20°C under 6 månader med konstant fukt på 70% vattenhållandförmåga. Substratblandningarna analyserades med avseende på total kol, totalkväve, askhalt och pH. Både kol och kväve emitterades i större utsträckning från biokolsblandningen i förhållande till askhalten. Vattenhållandeförmågan och pH-värdet var högre i biokolssubstratet jämfört med torrefierad GROT. Avdunstningen var högre från torrefierad GROT jämfört med biokol. Resultatet pekade på en ökad mikrobiell aktivitet i blandningen med biokol och det antas ha initierat en mineralisering av det torvrika odlingssubstratet. Resultatet indikerar att torrefierad GROT kan användas som en kolsänka i substratblandningar, men att biokol aktiverar det mikrobiella livet i substratet på ett annorlunda sätt. En anledning till att biokol kan ge upphov till en sådan effekt är att det har ett högre pH än torrefierad GROT då den basiska mineralhalten är högre på grund av högre förbränningstemperatur i pyrolysen.

Abstract [en]

Both torrefied and pyrolysed forest residues can create long-term carbon sinks in garden soils based on peat. Pyrolysis requires a significantly higher temperature than torrefaction, and there would thus be an advantage if the required properties can be achieved with torrefied material. RISE was contracted by Sveaskog to conduct an experiment in which forest residues with two different degrees of torrefaction (difference in residence time) was compared with biochar. The substrates were mixed to 50% with garden soil provided by Econova. The soil incubation was performed at 20 °C for 6 months with constant soil humidity at 70% water holding capacity. The substrate mixtures were analysed for total carbon, total nitrogen, ash content and pH. Both carbon and nitrogen were emitted to a greater extent from the biochar mixture when compared to the ash content. The water holding capacity and the pH was higher in the biochar mix compared to the torrefied forest residual substate mix. The evaporation was elevated from the torrefied material, compared to the biochar. The result points to an increased microbial activity in the mixture with biochar and it is believed to have initiated a mineralisation of the peat-rich culture medium. The results indicate that torrefied forest residue can be used as a carbon sink in substrate mixtures, but that biochar activates the microbial life in the substrate in a different way. One reason why biochar can give rise to such an effect is that it had a higher pH than the torrefied forest residues, as the alkaline mineral content is higher, due to a higher combustion temperature in the pyrolysis.

Publisher
p. 27
Series
RISE Rapport ; 2021:48
Keywords
torrefied forest residue, biochar, carbon, nitrogen, soil incubation, peat, substrate, ash content, oxidation, decomposition, pyrolysis, pH, water holding capacity, evaporation, torrefierad GROT, biokol, kol, kväve, jordinkubation, torv, substrat, askinnehåll, oxidation, nedbrytning, pyrolys, pH, vattenhållandeförmåga, avdunstning
National Category
Other Agricultural Sciences
Identifiers
urn:nbn:se:ri:diva-52998 (URN)978-91-89385-38-2 (ISBN)
Projects
Växtodlingsförsök med torrefierad GROT från Sveaskog
Available from: 2021-05-20 Created: 2021-05-20 Last updated: 2023-06-08Bibliographically approved
Myrbeck, Å., Mjöfors, K. & Tersmeden, M. (2021). Vattenflöden i djurstallar.
Open this publication in new window or tab >>Vattenflöden i djurstallar
2021 (Swedish)Report (Other academic)
Abstract [en]

Manure quality and quantity have been shown to change a lot through dilution from identified and diffuse water sources. Knowledge of the dry matter contents (DM) of the manure is needed for effective use of the manure as fertilizer and to avoid too high doses causing losses of nutrients to the surrounding water bodies. Based on this, water flow measurements were carried out at the five Swedish pilot farms. All water ending up in the manure storage was included. The measurement took note of drinking (indoor and outdoor), milk room (dishing etc), washing (stable, milk room, field equipment), feeding, staff areas and total consumption. The results were used for discussion on improving the handling of water in VERA, the Swedish calculation tool for manure quantity and quality on farms. The water amount from the different water categories differed between the animal categories, where dairy cows used in total 30-35 m3 per animal and year and the fatteners and sows around 8-10 m3 per animal and year. Out of the total water to the dairy cows, around 75-80% of the water was drinking water and the rest other technological water (e.g. cleaning of milk room, milking pit and dishes). For pigs the ratio was higher for drinking water, 95-almost 100 %. Here the largest amount of water was from wet foddering making up 80 % of the drinking water. Water through water cups per dairy cow amounted to around 25 m3 per year depending on if drinking water on pasture was included or not. This gives a daily consumption of 65-75 litres per animal and day which is a bit low compared to the literature. A concluding remark is that neither technical water (except for washing water at dairy farms) nor a variability in precipitation did have any major effect on the DM contents in slurry ex-storage. Instead, the water supply from faeces and urine was what determined the DM content. Additional water flow measurements on farms would provide data that should be used for generating improved default values for the calculation tools.

Publisher
p. 30
Series
RISE Rapport ; 2021:21
Keywords
vattenförbrukning i djurstallar, ts-halt i gödsel, flödesmätningar, stallgödsel
National Category
Animal and Dairy Science
Identifiers
urn:nbn:se:ri:diva-56966 (URN)978-91-89385-05-4 (ISBN)
Available from: 2021-11-19 Created: 2021-11-19 Last updated: 2023-06-08Bibliographically approved
Råberg, T. & Myrbeck, Å. (2021). Växtodlingsförsök med torrefierad GROT från Sveaskog.
Open this publication in new window or tab >>Växtodlingsförsök med torrefierad GROT från Sveaskog
2021 (Swedish)Report (Other academic)
Alternative title[en]
Plant cultivation study with torrefied forest residues from Sveaskog
Abstract [sv]

Torrefierad GROT kan bidra till en kolsänka i trädgårdsjordar genom att andelen torv kan minskas i substratblandningen som säljs till kunden. Eftersom det finns energivinster med kortare torrefiering så fanns intresse av att undersöka om grönsaker har olika tillväxt i material som torrefierats under längre eller kortare tid. RISE fick i uppdrag av Sveaskog att göra ett försök där odling i GROT med två olika torrefieringsgrad (skillnad i uppehållstid) jämfördes med vanlig grönsaksjord som säljs av Econova. De tre odlingssubstraten som ingick i försöket iordningsställdes genom att 10 vikts-% av GROT1, GROT2 respektive ljus torv blandades in i Econovas grönsaksjord. Modellväxten var Romansallad (Lactuca Sativa ’var. Romana’) och försöket utfördes under tre månader i odlingskammare med kontrollerad temperatur (D: 20°C/ N: 15°C), luftfuktighet (Rh 70%), ljusexponering (15 h) och markfukt (70% WHC) under perioden 14/7 - 15/9 2020.  Fullgödsling tillsattes i form av näringslösning vid fyra tillfällen. Innan skörd gjordes ett smaktest där två testpersoner bedömde salladen i varje kruka. Salladens biomassa mättes som färskvikt och torrvikt efter skörd. Torkning gjordes i 105°C i tre dygn. Inga signifikanta skillnader uppmättes med avseende på smaktest, färskvikt och torrvikt. Slutsatsen från försöket är att det uppmättes ingen signifikant försämring av tillväxten när 10 vikts% byttes ut från torv till GROT. Det syntes ingen signifikant skillnad mellan de olika torrefieringsgraderna, vilket indikerar att det finns möjliga energibesparingar genom att använda en kortare uppehållstid i pyrolysreaktorn.

Abstract [en]

Torrefied forest residues can contribute to a carbon sink in garden soils by reducing the proportion of peat in the substrate mixture sold to the customer. Since there are energy gains with shorter torrefaction, there was interest in investigating whether vegetables have different growth pattern in substrate mixtures with residues that have been torrefied for a longer or shorter time. RISE was commissioned by Sveaskog to make an experiment where cultivation in forest residues with two different degrees of torrefaction (difference in residence time) was compared with ordinary vegetable soil sold by Econova. The three growing media included in the experiment were prepared by mixing 10% by weight of GROT1, GROT2 and light peat, respectively, into Econova's vegetable soil. The model plant was Roman lettuce (Lactuca Sativa 'var. Romana') and the experiment was carried out for three months in cultivation chambers with controlled temperature (D: 20 °C / N: 15 °C), humidity (Rh 70%), light exposure (15 h) and soil moisture (70% WHC) during the period 14/7 - 15/9 2020. Fertilisation was added in the form of nutrient solution on four occasions. Before harvest, a taste test was performed where two test persons assessed the salad in each pot. The biomass of the salad was measured as fresh weight and dry weight after harvest. Drying was done at 105 ° C for three days. No significant differences were measured with respect to taste test, fresh weight and dry weight. The conclusion from the experiment is that no significant deterioration of the growth was measured when 10% by weight was changed from peat to torrefied forest residue. There was no significant difference between the degrees of torrefaction, which indicates that there are possible energy savings by using a shorter residence time in the pyrolysis reactor. 

Publisher
p. 17
Series
RISE Rapport ; 2021:49
Keywords
torrefied forest residue, carbon, peat, substrate, plant growth experiment, fresh weight, dry weight, taste, pyrolysis, water holding capacity, torrefierad GROT, kol, torv, substrat, odlingsförsök, färskvikt, torrvikt, smak, pyrolys, vattenhållandeförmåga
National Category
Other Agricultural Sciences
Identifiers
urn:nbn:se:ri:diva-52999 (URN)978-91-89385-39-9 (ISBN)
Projects
Nedbrytningsförsök av torrefierad GROT och biokol
Available from: 2021-05-12 Created: 2021-05-12 Last updated: 2023-06-08Bibliographically approved
Gunnarsson, C., Lund, J., Casimir, J. & Myrbeck, Å. (2020). Sustainable straw potential in Sweden – a case study to supply straw for ethanol production. In: European Biomass Conference and Exhibition Proceedings2020, Pages 86-8828th European Biomass Conference and Exhibition, e-EUBCE 2020; Virtual, Online; ; 6 July 2020 through 9 July 2020: . Paper presented at 28th European Biomass Conference and Exhibition, e-EUBCE 2020, 6 July 2020 through 9 July 2020 (pp. 86-88). ETA-Florence Renewable Energies
Open this publication in new window or tab >>Sustainable straw potential in Sweden – a case study to supply straw for ethanol production
2020 (English)In: European Biomass Conference and Exhibition Proceedings2020, Pages 86-8828th European Biomass Conference and Exhibition, e-EUBCE 2020; Virtual, Online; ; 6 July 2020 through 9 July 2020, ETA-Florence Renewable Energies , 2020, p. 86-88Conference paper, Published paper (Refereed)
Abstract [en]

When agriculture is to supply a growing bioeconomy with biomass, straw has been identified as one of residues with the largest potential. As removal of straw from fields will have a negative impact on soil humus development compared with straw incorporation it is important to make sure that a system including straw removal does not negatively effect the long-term soil fertility. As part of the EU-financed project AGROinLOG a Swedish demonstration case was made to supply 80,000 tonnes of winter wheat straw annually to 2nd generation bioethanol production. The straw removal from the case study area of Norrköping and surrounding counties, in the south-eastern part of Sweden, was evaluated from a soil fertility aspect using a model that estimates the sustainability of a cropping system regarding soil fertility and yield levels based on humus content, climate and soil type. The assessment revealed the possibility to remove 230,000 tonnes of winter wheat straw from the surrounding counties of Norrköping without reaching the humus limit. The margin to 80,000 tonnes is large and collecting this amount of winter wheat straw annually may well be possible. 

Place, publisher, year, edition, pages
ETA-Florence Renewable Energies, 2020
Keywords
Agricultural residues, Biobased economy, Lignocellulose, Second generation ethanol, Soil fertility, Wheat straw
National Category
Natural Sciences
Identifiers
urn:nbn:se:ri:diva-51207 (URN)2-s2.0-85097404669 (Scopus ID)
Conference
28th European Biomass Conference and Exhibition, e-EUBCE 2020, 6 July 2020 through 9 July 2020
Available from: 2021-01-11 Created: 2021-01-11 Last updated: 2023-11-22Bibliographically approved
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0001-9240-865x

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