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Registros recuperados: 7
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Biogas aus Festmist – eine neue Technologie zu Schließung des Nährstoff- und Energiekreislaufes auf dem landwirtschaftlichen Betrieb Organic Eprints
Schäfer, Winfried; Evers, Lars; Lehto, Marja; Sorvala, Sanna; Teye, Frederick; Granstedt, Artur.
The Biodynamic Research Institute in Järna developed at the farm Yttereneby a two phase biogas plant. The plant digests manure of dairy cattle and organic residues originating from the farm and the surrounding food processing units containing 17,7 - 19,6 % dry matter. A new technology for continuously filling and discharging the biogas reactor was developed and implemented. Digestion residues are separated into a solid fraction for composting and into a liquid fraction. The solid fraction is suitable for aerobic composting. Initial results show that anaerobic digestion and following aerobic composting of the solid fraction improves the nitrogen balance of the farm compared to mere aerobic composting. Composted biogas plant residues and effluent together...
Tipo: Conference paper, poster, etc. Palavras-chave: "Organics" in general Dairy cattle Recycling; Balancing and resource management Composting and manuring.
Ano: 2005 URL: http://orgprints.org/3459/1/3459.pdf
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Erstellung und Beschreibung des PC-Programms BEFU, Teil Ökologischer Landbau. Verfahren der Grunddüngung, legumen N-Bindung, Nährstoff- und Humusbilanzierung Organic Eprints
Kolbe, Hartmut; Köhler, Brigitte.
Im Ökologischen Landbau stehen heute Aufgaben an, für die z. T. umfangreiche Kalkulationen erforderlich sind. So werden auf gesetzlicher Basis über die Düngeverordnung und Cross Compliance Berechnungen von Nährstoffvergleichen und eine Humusbilanzierung vorgeschrieben. Ebenso werden im Bereich der Kontrolle zur EU-Öko-VO sowie in der Betriebsberatung genaue Berechnungen zur Betriebs- und Fruchtfolgegestaltung angefordert. Um diese zunehmende Dokumentationspflicht erfüllen zu können, werden von Seiten der Praxis einfache PC-unterstützte Hilfsmittel nachgefragt. Diese Verfahren sollen darüber hinaus auch gehobenen Ansprüchen entsprechen, damit sie geeignet sind, z. B. bei der Aufdeckung von Schwachstellen sowie zur Optimierung des Nährstoffmanagements und...
Tipo: Report Palavras-chave: Environmental aspects Nutrient turnover Crop combinations and interactions Knowledge management Farm nutrient management Technology transfer Recycling; Balancing and resource management Composting and manuring.
Ano: 2008 URL: http://orgprints.org/15101/1/BEFU_Teil_Oekologischer_Landbau08.pdf
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Evaluation of organic matter stability during the composting process of agroindustrial wastes. Organic Eprints
Tittarelli, Fabio; Trinchera, Alessandra; Intrigliolo, Francesco; Benedetti, Anna.
Composting of wastes from citrus industrial processing (pastazzo and sludge) was studied in order to evaluate the evolution of organic matter during the process and to individuate chemical and/or biochemical techniques able to set the stability of the final product. Composts from two open-air piles of different composition were sampled every month during the whole period of composting (5 months) and the organic matter of each sample was characterised by chemical and biochemical techniques. Humification rate (HR%) and humification index (HI) were determined. Extracted organic matter of six samples collected for each compost was investigated by isoelectric-focusing technique (IEF). The biochemical analysis was based on the study of C-mineralisation after the...
Tipo: Book chapter Palavras-chave: Recycling; Balancing and resource management Composting and manuring.
Ano: 2002 URL: http://orgprints.org/8184/1/Tittarelli_final_version.pdf
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Klimaschutz auf Kosten des Bodenschutzes? Organic Eprints
Beste, Andrea.
Die Nutzung von Bioenergie hat in den letzten Jahren aufgrund der weltweit wachsenden Energienachfrage und der Probleme des Klimawandels erheblich an Bedeutung zugenommen. Sowohl eine CO2-neutrale Energienutzung, als auch die Möglichkeit zur Einkommensdiversifizierung in der Landwirtschaft ist grundsätzlich zu begrüssen. Einseitige Fruchtfolgen und die Düngung mit C-reduzierten Gärresten führen jedoch zu weiterem Humusabbau. Gerade für den ökologischen Landbau ist die Verwendung von Biogasgülle in Bodenfruchtbarkeitshinsicht fraglich. Humusabbau verstärkt die Folgen des Klimawandels – Extremregenfälle, Hochwassergefahr und Dürre – wesentlich und ist angesichts der Auswirkungen auf die Erntesicherheit geradezu fahrlässig. Statt dessen müssten unsere...
Tipo: Journal paper Palavras-chave: Nutrient turnover "Organics" in general Soil quality Recycling; Balancing and resource management Composting and manuring.
Ano: 2007 URL: http://orgprints.org/10882/1/KlimaschutzBodenschutz_llsn22.pdf
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Miljøeffekter af bioforgasning og separering af gylle - indflydelse på lugt, ammoniakfordampning og kvælstofudnyttelse Organic Eprints
Hansen, Martin N.; Birkmose, Torkild; Mortensen, Børge; Skaaning, Kent.
Risikoen for ammoniaktab under lagring er højere for bioforgasset og separeret gylle, men effektiv overdækning af gyllelagre begrænser effektivt tabet. Med et effektivt flydelag er tabet ens for behandlet og ubehandlet gylle. Bioforgasning og separering af gylle begrænser ammoniaktabet i forbindelse med gyllens udbringning, effekten er højst af separering. Bioforgasning og separering af gylle fører ikke til mærkbar begrænsning af lugtgener fra gyllelagre, lugtgenerne kan dog effektivt begrænses ved effektiv overdækning af lagre. Lugtgenerne i forbindelse med udbringning af gylle er lavere ved udbringning af bioforgasset og separeret gylle end ved udbringning af ubehandlet gylle. Bioforgasset gylle og separeret gylle giver en højere kvælstofudnyttelse end...
Tipo: Report Palavras-chave: Recycling; Balancing and resource management Composting and manuring.
Ano: 2004 URL: http://orgprints.org/3517/1/3517.pdf
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Ökologische Sanitärlösungen in Afrika: Beitrag zu nachhaltiger Abfallentsor-gung und erhöhter Bodenfruchtbarkeit Organic Eprints
Germer, Jörn; Grenz, Jan; Sauerborn, Joachim.
While plant nutrient deficiencies are a major constraint to increasing crop yields in many rural parts of Sub-Saharan Africa, excess nutrients in organic wastes and wastewater cause environmental and hygienic problems in urban areas. We report on an ongoing research aimed at implementing principles of ecological sanitation on a university campus near Accra, Ghana. Alternative sanitation including dry urinals and separating toilets was installed in buildings. Pure urine, urine-water mix, greywater from baths and kitchens and faeces are treated and stored separately. Except for faeces, all materials are used to fertilise annual (urine) and perennial (urine-water, greywater) crops. Urine application significantly boosted maize and sorghum growth. Pathogens...
Tipo: Conference paper, poster, etc. Palavras-chave: Recycling; Balancing and resource management Composting and manuring.
Ano: 2007 URL: http://orgprints.org/9429/1/9429_Germer_Vortrag.pdf
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Recycling of bioenergy waste-stream materials to soil in organic farming systems Organic Eprints
Johansen , Anders; Hauggaard-Nielsen, Henrik; Ambus, Per; Carter, Mette S..
The poster present data on how de-gassted waste-stream material affect soil quality parameters in comparence to raw manure and clover-grass application. The results showed that residues after bio-gasification seems suited for fertilizer usage and not much different from application of raw cattle manure. However, the long-term effects on soil organic matter content needs to be further clarified. Application of clover-grass to the soil caused a significant loss of C and N due to gaseous emissions.
Tipo: Conference paper, poster, etc. Palavras-chave: Crop health; Quality; Protection Farm nutrient management Quality and evaluation of inputs Biodiversity and ecosystem services Recycling; Balancing and resource management Composting and manuring.
Ano: 2009 URL: http://orgprints.org/16281/1/16281.pdf
Registros recuperados: 7
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