Organic Eprints
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Presentions of the Session "The World of Organic Agriculture - Latest Statistics"
No full textAt the session "The World of Organic Agriculture" on February 11, the latest data on organic agriculture worldwide were presented as well as updates on policies and markets.
Facilitator: Ravi R. Prasad, Executive Director, IFOAM - Organics International
Marco Kräuchi, Swiss State Secretariat for Economic Affairs
Helga Willer, Research Institute of Organic Agriculture FiBL
Gábor Figeczky, Senior Manager Global Policy, IFOAM - Organics International
Amarjit Sahota, Director, Ecovia Intelligenc
Unerwünschte Trächtigkeiten verhindern
No full textImmer wieder landen tragende Kühe im Schlachthof. Um dies zu verhindern, müssen Halterinnen und Halter eine praktikable und zum Betrieb passende Lösung finden
L’obscurité favorise l’amertume
No full textLes racines d’endive poussent dehors, et la salade bourgeonne quant à elle dans des halles sombres. L’état sanitaire de cette production dépend fortement de celui au champ
Evitare gravidanze indesiderate
No full textAccade sovente che vacche gravide finiscano al macello. Per ovviare a questa situazione è necessario che gli allevatori trovino una soluzione praticabile e adatta all’azienda
Effects of calcium carbonate products on methane emissions from cattle slurry - Cal-Me
Get PDFAgriculture is a significant source of methane (CH4) emissions, with about 20% of cattle-related CH4 coming from manure storage. In slurry tanks, where conditions are anaerobic, methane-producing microorganisms thrive, break down organic matter and release CH4 (methanogenesis), a potent greenhouse gas 28 times stronger than CO2 in terms of global warming potential.
A study on Norwegian farms revealed that one farm, where finely ground liquid lime was added to manure slurry, had notably low CH4 emissions, implying that lime could potentially reduce CH4 emissions from agriculture. However, it has been suggested that lime can also accelerate organic matter degradation, potentially leading to an increase in CH4 production, which would be beneficial for biogas plants.
To investigate that, controlled batch experiments were set up by incubating cattle slurries from different farms that were exposed (Engdal farm) or not (Tingvoll farm) to CaCO3 on site, while some bottles were also amended with fresh CaCO3-based products. Gas emissions, chemical and biological compositions were monitored over time.
Our study did not confirm that CaCO₃-based products directly reduced CH₄ emissions from cattle slurry. Contradictory, the CH4 emissions were earliest and highest in the slurry that had received a CaCO3-based product once a year before this study. The study confirmed enhanced degradation of the organic matter in this cattle slurry compared with two other slurries without previous CaCO3-based product application. This could be the reason for high CH4-emissions from this slurry.
The project provided valuable insights into the complex interactions influencing methane production in manure storage. CaCO₃ likely affected pH dynamics, impacting microbial activity and chemical availability. While sulphate-reducing bacteria were active initially, methanogens remained dominant, indicating that sulphate levels were insufficient to fully suppress methanogenesis. High H₂S emissions and sulphur deposition highlighted active transformation of sulphur.
Differences in slurry stratification and microbial diversity likely influenced methane production, resembling natural manure storage processes. This might explain some of the discrepancies between emissions from cattle slurry in bottles and out in the cattle slurry storage.
While CaCO₃ alone may not directly reduce CH₄ emissions, its interactions with various biological and chemical processes warrant further investigation. Future research should focus on the long-term effects of CaCO₃ application under farm conditions, its impact on methane oxidation pathways, and the potential role of sulphate-dependent anaerobic methane oxidation. Additionally, studies should examine how the enhanced degradation of organic matter following CaCO₃ application influences the release of compounds that may inhibit methanogens in cattle slurry
Catalogue of Ukrainian organic exprters
Get PDFThe Catalogue of Ukrainian Organic Exporters is developed by the State Institution “Entrepreneurship and Export Promotion Office” (EEPO, Ukraine) within the framework of the state project Diia.Business in partnership with the Organic Standard certification body, under the auspices of the Ministry of Agrarian Policy and Food of Ukraine, and supported by Switzerland within the framework of the Swiss-Ukrainian Programe “Higher Value Added Trade from the Organic and Dairy Sectors in Ukraine” (QFTP) implemented by the Research Institute of Organic Agriculture (FiBL, Switzerland) in partnership with SAFOSO AG.
The content of this catalogue is the sole responsibility of the authors and does not necessarily reflect the views of the development partner and the program’s implementing agencies
Animal welfare protocol for free-roaming pigs
Get PDFThis animal welfare protocol is developed to assist farmers and researchers in assessing the animal welfare in free-roaming pigs
Stressfreie Hoftötung
No full textEine gute Vorbereitung und klare Abläufe sorgen bei der Hoftötung von Schweinen für die nötige Ruhe. Das hilft Tier und Mensch
Biowein- und Bioobstbaufibel
Get PDFInformationen aus Praxis, Beratung und Forschung rund um den Biowein- und Bioobstbau
Preliminary Genetic Mapping of Common Bunt Resistance Gene Bt4
Get PDFGenetic mapping of the resistance gene Bt4 controlling common bunt (Tilletia caries) in whea