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Above- and belowground nitrogen distribution of a red clover-perennial ryegrass sward along a soil nutrient availability gradient established by organic and conventional cropping systems Organic Eprints
Hammelehle, Andreas; Oberson, Astrid; Lüscher, Andreas; Mäder, Paul; Mayer, Jochen.
Aims Belowground legume nitrogen (N) composed of roots and rhizodeposition is an important N input to soils, but published data of belowground N vary broadly, probably due to extrapolation from short-term experiments and dissimilar growing conditions. We quantified belowground N inputs of red clover (Trifolium pratense L.) during two consecutive years in a clover-grass sward along a soil nutrient availability gradient. Methods We established a red clover-perennial ryegrass (Lolium perenne L.) model sward in microplots located in field plots of the DOK experiment, which has a 33-year history of organic and conventional cropping, resulting in a soil nutrient availability gradient. Four treatments were examined: the zero fertilisation control, bio-organic...
Tipo: Journal paper Palavras-chave: Soil quality; Composting and manuring.
Ano: 2018 URL: http://orgprints.org/34924/1/hammelehle-etal-2018-PlantSoil-Vol425-Issue1-2-p507-525.pdf
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Abschätzung der N-Freisetzung aus unterschiedlich bewirtschafteten Klee-, Kleegras- und Luzernebeständen im Verlauf nachfolgender Weißkohlkulturen und im zweiten Jahr nach Umbruch Organic Eprints
Laber, Hermann.
Mehrjährige Leguminosen(gras)bestände sind ein wesentliches Fruchtfolgeglied im ökologischen Landbau. Zur N-Fixierungsleistung und den N-Mengen in Aufwuchs und Wurzeln solcher Bestände liegen umfangreiche Literaturdaten vor, dagegen wurde die N-Freisetzung nach Umbruch dieser Bestände in situ bisher kaum untersucht. Ziel der über 3 Vegetationsperioden laufenden Untersuchung war es, die N-Freisetzung aus unterschiedlich bewirtschafteten Klee-, Kleegras- und Luzernebeständen (ein- bzw. 2-jährig, Futternutzung bzw. Grünbrache) bei Herbst- bzw. Frühjahrsumbruch zu untersuchen und diese Ergebnisse in ein einfaches Düngungs-Kalkulationsprogramm einfließen zu lassen. Dazu wurde nach dem Umbruch Lagerweißkohl angebaut. Als Kontrolle dienten Parzellen, die...
Tipo: Report Palavras-chave: Crop combinations and interactions; Vegetables; Composting and manuring.
Ano: 2007 URL: http://orgprints.org/13105/1/N%2DFreisetzung_Kleegras.pdf
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Abschätzung des Risikos einer Schwermetall-Akkumulation in Böden durch längerfristige Anwendung von Recycling- Phosphor-Düngemitteln Organic Eprints
Weissengruber, Lina; Friedel, Jürgen K.; Möller, Kurt.
In order to assess the risk of the use of recycled phosphorus (P) fertilisers for organic farming, the potential accumulation of heavy metals in soil after a 200-year fertilizer application equivalent to 11 kg P ha-1 yr-1 was calculated in a mass balance approach. Both fertilizers currently allowed in organic farming and recycled P fertilizers were regarded. For heavy metals, four scenarios with two soil pH levels (pH 5 and pH 7) and two precipitation excess levels (F 0.1 and F 0.3 m yr-1) were calculated. Recycled P fertilizers like struvite, meat- and bone meal, ashes, sewage sludge and digestate, as well as phosphate rock and triple superphosphate had a higher P content and a lower heavy metal-to-P ratio than composts. Consequently, compost application...
Tipo: Conference paper, poster, etc. Palavras-chave: Soil quality; Composting and manuring; Nutrient turnover.
Ano: 2017 URL: http://orgprints.org/31898/1/Absch%C3%A4tzung%20des%20Risikos%20einer%20Schwermetall-Akkumulation.pdf
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Ackerbausysteme im ökologischen Landbau Organic Eprints
Beckmann, Uta; Kolbe, Hartmut; Model, Annett; Russow, Rolf.
Zusammenfassung der Ergebnisse und Schlussfolgerungen: Auf einem Sandboden und einem Lößboden wurden in Sachsen ab dem Jahr 1992 komplexe Dauerversuche durchgeführt. Es wurden Verfahren von viehlosen (System Marktfruchtbau) sowie von viehhaltenden Betrieben (System Futterbau) in der Anbaufolge mit zweijährigem Leguminosengras, Sommerweizen und Mais simuliert. In den Versuchen wurden außerdem eine stark unterschiedliche Düngungshöhe mit verschiedenen organischen Düngemitteln sowie differenzierte anbautechnische und vegetationsbegleitende Maßnahmen berücksichtigt. Die Anbauverfahren wurden sowohl in ihren kurzzeitigen Auswirkungen auf Nährstoffdynamik (Nmin, gasförmige N-Emissionen), Ertrag und Produktqualität der Kulturarten als auch in ihren...
Tipo: Report Palavras-chave: Nutrient turnover; Systems research and participatory research; Crop combinations and interactions; Production systems; Soil quality; Soil tillage; Composting and manuring.
Ano: 2000 URL: http://orgprints.org/1535/1/Link%2DVolltext.htm
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Ackerbausysteme im ökologischen Landbau unter besonderer Berücksichtigung von N-Bilanz und Effizienzkennzahlen Organic Eprints
Beckmann, Uta; Kolbe, Hartmut; Model, Annett; Russow, Rolf.
Auf einem Sandboden und einem Lößboden wurden in Sachsen ab dem Jahr 1992 komplexe Dauerversuche durchgeführt. Es wurden Verfahren von viehlosen (System Marktfruchtbau) sowie von viehhaltenden Betrieben (System Futterbau) in der Anbaufolge mit zweijährigem Leguminosengras, Sommerweizen und Mais simuliert. In den Versuchen wurden außerdem eine stark unterschiedliche Düngungshöhe mit verschiedenen organischen Düngemitteln sowie differenzierte anbautechnische und vegetationsbegleitende Maßnahmen berücksichtigt. Die Anbauverfahren wurden sowohl in ihren kurzzeitigen Auswirkungen auf Nährstoffdynamik (Nmin, gasförmige N-Emissionen), Ertrag und Produktqualität der Kulturarten als auch in ihren langfristigen Auswirkungen auf die Nährstoffbilanzen der Fruchtfolgen...
Tipo: Journal paper Palavras-chave: Composting and manuring; Systems research and participatory research; Nutrient turnover; Crop combinations and interactions; Soil tillage.
Ano: 2001 URL: http://orgprints.org/3947/1/UFZ_GasfEmiss_Abschlb.pdf
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Ackerbausysteme im ökologischen Landbau unter besonderer Berücksichtigung von N-Bilanz und Effizienzkennzahlen Organic Eprints
Beckmann, Uta; Kolbe, Hartmut; Model, Annett; Russow, Rolf.
Auf einem Sandboden und einem Lößboden wurden in Sachsen ab dem Jahr 1992 komplexe Dauerversuche durchgeführt. Es wurden Verfahren von viehlosen (System Marktfruchtbau) sowie von viehhaltenden Betrieben (System Futterbau) in der Anbaufolge mit zweijährigem Leguminosengras, Sommerweizen und Mais simuliert. In den Versuchen wurden außerdem eine stark unterschiedliche Düngungshöhe mit verschiedenen organischen Düngemitteln sowie differenzierte anbautechnische und vegetationsbegleitende Maßnahmen berücksichtigt. Die Anbauverfahren wurden sowohl in ihren kurzzeitigen Auswirkungen auf Nährstoffdynamik (Nmin, gasförmige N-Emissionen), Ertrag und Produktqualität der Kulturarten als auch in ihren langfristigen Auswirkungen auf die Nährstoffbilanzen der Fruchtfolgen...
Tipo: Report Palavras-chave: Composting and manuring; Systems research and participatory research; Nutrient turnover; Crop combinations and interactions; Soil tillage.
Ano: 2001 URL: http://orgprints.org/1538/1/1538%2Dbeckmann%2Du%2Det%2Dal%2D2001%2Dackerbausysteme%2Dufz.pdf
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Ackerbausysteme im ökologischen Landbau: Untersuchungen zur Nmin-, N2O-N- und NH2-N-Dynamik sowie Rückschlüsse zur Anbau-Optimierung Organic Eprints
Beckmann, Uta; Kolbe, Hartmut; Model, Annett; Russow, Rolf.
Die Entwicklung der Landwirtschaft war in den letzten Jahrzehnten gekennzeichnet durch einen beispiellosen Anstieg des Dünge- und Pflanzenschutzmitteleinsatzes sowie durch entsprechend starke Ertragssteigerungen. Die damit verbundenen nachteiligen Umweltwirkungen auf Wasser, Boden und Atmosphäre führten einerseits zur Suche nach Optimierungsstrategien und andererseits zu erhöhten Anstrengungen bei der Prüfung alternativer Bewirtschaftungsformen. Zur Prüfung von Ackerbausystemen des ökologischen Landbaus wurden ab dem Jahr 1992 komplexe Dauerversuche angelegt. Es wurden Verfahren von viehlosen sowie von viehhaltenden Betrieben simuliert. In den Versuchen wurden außerdem eine stark unterschiedliche Düngungshöhe mit verschiedenen organischen Düngemitteln...
Tipo: Book Palavras-chave: Composting and manuring; Production systems; Nutrient turnover; Soil quality; Air and water emissions.
Ano: 2002 URL: http://orgprints.org/802/1/kein%2DDokument.pdf
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Ackerbohnenschrot im Vergleich zu Rottemist: Effekte auf Ertrag und Qualitätsparameter von Kartoffeln Organic Eprints
Oltmanns, Meike; Raupp, Joachim.
Ökologische Betriebe ohne eigene Viehhaltung müssen eine Düngungsalternative für Stallmist finden. Im Gemüse- oder Feldgemüseanbau sind dies meist geschrotete, großkörnige Leguminosensamen. Während die Wirkungen des Stallmistes in vielen Feldversuchen bereits belegt worden sind, stehen entsprechende Untersuchungen mit Leguminosenschroten noch aus. Daher werden seit 1996 in einem Feldversuch die Langzeit-Effekte von pflanzlichen organischen Düngern und Stallmist sowie Mineraldüngung (bei gleicher Stickstoff-Aufwandmenge, 100 kg ha-1 N) verglichen. Ergebnisse in 2005: Der Ertrag der marktfähigen Kartoffeln lag bei den Düngungsarten Stallmist und Ackerbohnenschrot mit ca. 230 dt ha-1 gleich hoch. Der Kaliumgehalt der mit Ackerbohnenschrot gedüngten...
Tipo: Conference paper, poster, etc. Palavras-chave: Post harvest management and techniques; Root crops; Composting and manuring.
Ano: 2006 URL: http://orgprints.org/9184/1/pfl06kartE.pdf
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Acúmulo de biomassa e nutrientes por adubos verdes e produtividade da canaplanta cultivada em sucessão, em duas localidades de São Paulo, Brasil. Organic Eprints
Ambrosano, Edmilson José; Foltran, Dulcineia Elizabete; Camargo, Mônica Sartori; Rossi, Fabrício; Schammass, Eliana Aparecida; Silva, Edson Cabral da; Ambrosano, Gláucia Maria Bovi; Dias, Fábio LuisFerreira.
Os objetivos deste trabalho foram avaliar a produção de massa de matéria seca, o acúmulo de nutrientes e infecção natural por fungos micorrizicos arbusculares (FMAs) de espécies de adubação verde e quantificar a produtividade agrícola e industrial da cana-planta cultivada em sucessão às espécies de adubos verdes, em duas localidades do estado de São Paulo, Brasil. O experimento foi conduzido no período de outubro de 2006 a agosto de 2008 em um Argissolo Vermelho-Amarelo distrófico, localizado em Tietê, SP, e em um Argissolo Vermelho, distrófico, localizado em Piracicaba, SP. Utilizou-se o delineamento experimental em blocos casualizados com 13 tratamentos (12 espécies de adubação verde e um tratamento testemunha, mantido capinado) e cinco repetições, em...
Tipo: Journal paper Palavras-chave: Farming Systems; Composting and manuring.
Ano: 2013 URL: http://orgprints.org/24403/1/AMBROSANO%2C%20Edmilson%20Jos%C3%A9_Ac%C3%BAmulo%20de%20biomassa%20e%20nutrientes%20por%20adubos.pdf
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Adubação do milho em um sistema de produção de base agroecológica: desempenho da cultura e fertilidade do solo. Organic Eprints
Hanisch, Ana Lúcia; Fonseca, José Alfredo da; Vogt, Gilcimar Adriano.
O objetivo deste trabalho foi avaliar o desempenho da cultura do milho e características químicas do solo ao longo de quatro anos, em função do uso de sistema de base agroecológica de produção. Foi utilizado o delineamento em blocos ao acaso, com quatro repetições e cinco tratamentos: 1) aplicação em área total de cama de aviário (5 t ha-1ano-1); 2) aplicação, em cobertura, do biofertilizante “uréia natural”; 3) aplicação, em cobertura, de urina de vaca a 10% de diluição; 4) plantio simultâneo de milho + leguminosa; 5) testemunha com manejo agroecológico. Foram avaliados a massa seca da adubação verde de inverno, o rendimento do milho e as características químicas do solo. Houve interação entre tratamentos e anos para produtividade de milho, sendo que o...
Tipo: Journal paper Palavras-chave: Production systems; Farming Systems; Composting and manuring.
Ano: 2012 URL: http://orgprints.org/22957/1/Hanisch_Aduba%C3%A7%C3%A3o.pdf
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Adubos verdes e seus efeitos no rendimento da cana-de-açúcar em sistema de plantio direto. Organic Eprints
Duarte Júnior, José Barbosa; Coelho, Fábio Cunha.
O objetivo deste trabalho foi avaliar adubos verdes e seus efeitos no rendimento da cana-de-açúcar em sistema de plantio direto (SPD). O trabalho foi realizado em Campos dos Goytacazes (RJ), no período de dezembro de 2003 a julho de 2005. O delineamento experimental foi em blocos casualizados, com quatro repetições. Os tratamentos foram: feijão-de-porco (Canavalia ensiformis), mucuna-preta(Mucuna aterrimum), crotalária (Crotalária juncea) em plantio direto e vegetação espontânea em preparo convencional (testemunha). Com crotalária aos 35 dias após emergência (DAE) houve maior taxa de cobertura do solo – 87% – e, aos 92 DAE produziu 17.852 kg ha-1 de matéria seca, respectivamente, 41%, 78% e 407% superior ao feijão-de-porco, mucuna e vegetação espontânea,...
Tipo: Journal paper Palavras-chave: Composting and manuring.
Ano: 2008 URL: http://orgprints.org/20405/1/Duarte_Junior_adubos.pdf
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Akkumulation von Schadstoffen in europäischen Böden durch alternative Phosphordünger Organic Eprints
Weissengruber, Lina; Friedel, Jürgen K.; Möller, Kurt.
Der Vorsorgewert wurde nur von Cr überschritten. Es zeigt sich, dass das Verhältnis von Schadstoff zu Phosphor eine wichtige Rolle spielt. Von Düngern mit einem geringen P-Gehalt, wie den Komposten, muss eine größere Menge ausgebracht werden, was in dieser Berechnung zu einer höheren Schadstoffanreicherung führte. Grüngutkompost hatte das höchste Akkumulationspotenzial für alle Schwermetalle, nur bei Cadmium wurde er von Triplesuperphosphat übertroffen. Vermutlich ist die atmosphärische Schermetallbelastung von Grünschnitt in Städten und entlang von Straßen besonders hoch und konzentriert sich im Kompost. Die Schadstoffgehalte der Dünger können, je nach Ausgangssubstraten, unterschiedlich sein. Als Phosphordünger eingesetzt, hatten Struvite, Fleisch- und...
Tipo: Conference paper, poster, etc. Palavras-chave: "Organics" in general; Soil quality; Composting and manuring; Environmental aspects.
Ano: 2016 URL: http://orgprints.org/30545/1/ALVA_Tagung_2016_Weissengruber-et-al_Risk-Assessment.pdf
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Alsidig drift godt for jordens poresystem Organic Eprints
Schjønning, P..
I økologisk jordbrug anvendes alsidige sædskifter, efterafgrøder og/eller tildeling af husdyrgødning/halm/kompost. Alt dette er med til at fremme mængden af organisk stof i jorden, som normalt forventes at spille en stor rolle for strukturen og poresystemet (jordens hulrum). FØJO har gennemført en række undersøgelser for at afdække, hvor meget og hvordan man som landmand kan påvirke forholdene. De langvarige forsøg med forskellig gødskning på Askov Forsøgsstation giver et godt grundlag for at vurdere effekten af organisk stof på jordens poresystem. Ca. 100 års forsøg uden tilførsel af nogen form for gødning har resulteret i et indhold af organisk stof i jorden på kun ca. 1% (svarende til et humusindhold på ca. 1,7%). Brug af mineralsk gødning (NPK) har...
Tipo: Newspaper or magazine article Palavras-chave: Crop combinations and interactions; Soil biology; Soil quality; Composting and manuring.
Ano: 2004 URL: http://orgprints.org/7757/1/7757.doc
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AMARANTHS (Amaranthus viridis) Dry matter and soil qualities: Organic Vs Inorganic Fertilizers Organic Eprints
ADEOLUWA, OLUGBENGA O.; AKINYEMI, OLUWASEYI.
Continuous use of mineral fertilizer in soils is associated with reduced crop and soil quality.In this report, comparative effects of poultry manure and its extract, compost and mineral fertilizers was observed. The study was carried out on the field in two successive plantings (first planting and residual) at the Department of Agronomy, University of Ibadan, Ibadan, Nigeria. The treatments used were poultry manure, poultry manure extract, NPK(15-15-15), and control. Fertilizer treatments applied at 100 kg N / ha were laid in a completely randomized block design with four replicates. Observations taken percentage dry matter and some chemical properties of the post harvest soils. Analysis of variance (ANOVA) at (P<0.05) was used as statistical...
Tipo: Conference paper, poster, etc. Palavras-chave: Composting and manuring; Nutrient turnover.
Ano: 2014 URL: http://orgprints.org/24105/1/24105%20OWC14%20A4_MM.pdf
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Amino acid and soil organic matter content of topsoil in a long term trial with farmyard manure and mineral fertilizers Organic Eprints
Scheller, Edwin; Raupp, Joachim.
Commencing in 1980, a long-term experiment is carried out to compare mineral fertilizers (MIN), composted manure (CM) and composted manure with application of biodynamic preparations (CMBD) at three different fertilizer application rates. With mineral fertilizer the lowest contents of 0.80% C and 0.069% N, with manure 0.90% C and 0.080% N, and with manure and biodynamic preparations 1.08% C and 0.094% N were achieved in the topsoil. 42.9 to 53.7% of Nt was bound in 18 protein amino acids including asparagine and glutamine. Amino acid contents in the hydrolysates of the topsoil were significantly different according to fertilizer type: MIN < CM < CMBD. The higher contents in manure fertilized plots were observed even at the lowest rate of fertilizer...
Tipo: Journal paper Palavras-chave: Soil biology; Composting and manuring.
Ano: 2005 URL: http://orgprints.org/4840/1/kein%2Ddokument.pdf
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Ammonia emissions from pig and cattle slurry in the field and utilization of slurry nitrogen in crop production Organic Eprints
Mattila, Pasi K..
Volatilization of ammonia (NH3) from animal manure is a major pathway for nitrogen (N) losses that cause eutrophication, acidification, and other environmental hazards. In this study, the effect of alternative techniques of manure treatment (aeration, separation, addition of peat) and application (broadcast spreading, band spreading, injection, incorporation by harrowing) on NH3 emissions in the field and N uptake by ley or cereals was studied. The effect of a mixture of slurry and peat on soil properties was also investigated. The aim of this study was to find ways to improve the utilization of manure N and reduce its release to the environment. Injection into the soil or incorporation by harrowing clearly reduced NH3 volatilization from slurry more than...
Tipo: Thesis Palavras-chave: Composting and manuring.
Ano: 2006 URL: http://orgprints.org/9994/1/met87.pdf
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Ammonia volatilization, nitrogen in soil, and growth of barley after application of peat manure and pig slurry Organic Eprints
Mattila, Pasi K..
Peat is added to manure, because its low pH and capacity to adsorb ammonia (NH3) give it potential to reduce nitrogen (N) loss. Peat manure was prepared by mixing pig slurry with moderately humified Sphagnum peat. Less than 1% of applied ammoniacal N was volatilized as NH3 from peat manure and pig slurry within 8 h of surface application on clay loam soil according to JTI method. Incorporated manures showed even smaller N loss. The low volatilization was due to the adsorption of manure ammoniacal N by peat, and the infiltration of slurry into harrowed, moist clay soil. In another experiment, peat manure was applied on polypropylene fabric without soil contact. Within the first 3 days there was only 9% reduction in the ammoniacal N of peat manure, but the...
Tipo: Journal paper Palavras-chave: Composting and manuring.
Ano: 2006 URL: http://orgprints.org/16805/1/mattila2.pdf
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Anaerobic digestion as a tool to eliminate animal parasites and weed seeds Organic Eprints
Johansen, Anders; Hansen, Christian M.; Andreasen, Christian; Carlsgart, Josefine; Nielsen, Henrik Bangsø; Roepstorff, Allan.
Anaerobic digestion of residual materials from animals and crops offers an opportunity to simultaneously produce bioenergy and plant fertilizers at single farms and in farm communities where input substrate materials and resulting digested residues are shared among member farms. A surplus benefit from this praxis may be the suppressing of propagules from harmful biological pest like animal parasites, pathogens, and weed seeds. In the BIOCONCENS project (http://www.icrofs.dk/Sider/Forskning/foejoIII_bioconcens.html) batch experiments were performed, where survival of six species of weeds and the pigs large roundworm Ascaris suum (non-embryonated eggs) was assessed under conditions similar to biogas plants managed at meso- (37°C) and thermophilic (50°C)...
Tipo: Conference paper, poster, etc. Palavras-chave: Composting and manuring; Health and welfare.
Ano: 2011 URL: http://orgprints.org/18901/4/18901.pdf
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Anaerobic digestion for closing the loop of a biorefinery for organic farming: Production of biogas and organic fertilizer from process residues Organic Eprints
Fernandez, Maria Santamaria; Ytting, Nanna Karkov; Lübeck, Mette; Uellendahl, Hinrich.
The availability of organic animal feed for monogastric animals and organic fertilizer is in many regions a limiting factor for the further spread of animal breeding and crop cultivation in organic farming. The production of these two commodities is the main target of a green biorefinery concept based on regionally organically grown grass biomass, called Organofinery. Anaerobic digestion of the residual streams after protein separation for the organic feed product is a key process to extract both the energetic and the nutritional value of the residual biomass in the biorefinery. Biogas potentials of the residual streams from the processing of red clover and clover grass (press cake obtained from screw pressing to produce green juice and brown juice after...
Tipo: Conference paper, poster, etc. Palavras-chave: "Organics" in general; Pasture and forage crops; Production systems; Farming Systems; Composting and manuring.
Ano: 2016 URL: http://orgprints.org/31502/1/Santamaria%20-%20Fernandez%20-%20AD%20of%20Biorefinery%20residues.pdf
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Anaerobic digestion of manure - consequences for plant production Organic Eprints
Løes, Anne-Kristin; Johansen, A.; Pommeresche, R.; Riley, H..
Organic farming systems are today dependent upon fossil energy. Another challenge are soil nutrient concentrations, which may be depleted with time even in animal husbandry systems (Løes & Øgaard 2001). Anaerobic digestion (AD) of animal manure may produce biogas to replace fossil fuels, and reduce methane (CH4) emissions during manure storage. Co-digestion of substrates rich in energy increases the economic viability of the biogas plant, and off-farm substrates such as fish silage or household waste may add nutrients to the farming system. AD may also ease manure handling, while reducing the amount of weed seeds and animal pathogens. A reduced proportion of easily degraded C in the AD-manure may however impact the soil fauna/microflora and humus...
Tipo: Conference paper, poster, etc. Palavras-chave: Composting and manuring; Farm nutrient management.
Ano: 2013 URL: http://orgprints.org/24552/1/24552.pdf
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