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Bodenüberwachung nach der Umstellung des Guts Rheinau auf biologische Bewirtschaftung - Berichtsperiode 1999-2010 Organic Eprints
Mäder, Paul; Pfiffner, Lukas; Fließbach, Andreas.
Mit der Umstellung des Gutes Rheinau von konventionell integrierter Bewirtschaftung auf bio-dynamische Wirtschaftsweise im Jahre 1998 wurde ein Monitoring der Bodenfruchtbarkeit begonnen, dass die biologische Veränderung im Boden während der Umstellungsphase dokumentieren sollte. Die ersten Bodenproben wurden 1999 auf drei Ackerschlägen und einer permanenten Naturwiese gezogen und dann wurden im Jahr 2002, 2005 und 2010 auf den in 1999 definierten Teilflächen je Schlag weitere Bodenproben entnommen. Neben mikrobiologischen Bodenparametern (mikrobielle Biomasse, Basalatmung, Dehydrogenaseaktivität) wurden die Regenwurmpopulationen und auch chemische Bodenparameter und lösliche und nachlieferbare Fraktionen wichtiger Nährstoffe ermittelt. Ausserdem erfolgte...
Tipo: Report Palavras-chave: "Organics" in general; Soil.
Ano: 2011 URL: http://orgprints.org/21620/1/Schlussbericht_Rheinau-BAFU_Final.pdf
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Einfluss von biologischer und konventioneller Bewirtschaftung auf biologische Bodenqualitätsparameter im DOK Langzeitversuch Organic Eprints
Oberholzer, Hans-Rudolf; Fließbach, Andreas; Mäder, Paul; Mayer, Jochen.
Im DOK-Feldversuch in Therwil, Schweiz werden seit 1978 folgende landwirtschaftlichen Anbausysteme verglichen: Konventionell (CONFYM, mineralische und organische Düngung, synthetische Pflanzenschutzmittel), biologisch organisch (BIOORG, organische Düngung, mechanische Unkrautbekämpfung und biologische Krankheits- und Schädlingsbekämpfung) sowie biologisch-dynamisch (BIODYN, organische Düngung mit kompostiertem Mist, Pflanzenschutz wie BIOORG,aber ohne Cu, biologisch-dynamische Präparate).
Tipo: Conference paper, poster, etc. Palavras-chave: Soil quality; Composting and manuring; Weed management.
Ano: 2009 URL: http://orgprints.org/26502/1/Oberholzer_Fliessbach_etal_2009_VDLUFA.pdf
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Variability of soil fertility and crop yield on a sandy field site in western Poland under bio-dynamic management" Organic Eprints
Fließbach, Andreas; Baars, Ton; Huisman, Sebastiaan; Jorgas, Thorsten; Lewandowska-Robak, Maja; Strässer, Cornelius; Mäder, Paul.
Variability of crop yield and soil quality was analysed before the start of a field experiment on a bio-dynmaic farm in Western Poland. The field site showed two zones of contrasting soil quality that partly correlated with crop yields. The procedure allowed to define high and low yielding zones and was suitable to design a balanced comparison trial.
Tipo: Conference paper, poster, etc. Palavras-chave: Soil biology; Soil tillage.
Ano: 2014 URL: http://orgprints.org/24361/1/24361_Fliessbach_revised_MM.pdf
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Klimaneutraler Acker- und Gemüsebau - Auswirkungen von reduzierter Bodenbearbeitung und Gründüngungen auf Bodenfruchtbarkeit, Klima und Ökonomie – bisherige Erkenntnisse und aktuelle Versuche Organic Eprints
Mäder, Paul; Berner, Alfred; Fließbach, Andreas; Messmer, Monika; Koller, Martin; Weibel, Franco; Stolze, Matthias; Schader, Christian; Sanders, Jürn; Dierauer, Hansueli; Clerc, Maurice.
Die Landwirtschaft trägt weltweit mit 12–32 Prozent zum Klimawandel bei. Hauptquellen sind der Methanausstoss der Wiederkäuer, der CO2-Verbrauch für die Herstellung von Düngern und Pestiziden, die Abholzung von Wäldern für den Ackerbau und Weideflächen sowie die Bodenerosion. Auch der Einsatz des Pflugs verbraucht viel Energie, verstärkt den Abbau von Humus und belastet somit das Klima. Gemäss bisherigen Untersuchungen benötigt die biologische Landwirtschaft schon heute mit den gängigen Methoden weniger Energie als die konventionelle Bewirtschaftung. Im DOK-Versuch zum Beispiel verbrauchen die Bioverfahren 20 Prozent weniger Energie pro Ertragseinheit. Dies macht den Biolandbau zwar klimafreundlicher, aber noch nicht klimaneutral. Durch die Anwendung...
Tipo: Report Palavras-chave: Soil quality; Soil tillage; Biodiversity and ecosystem services.
Ano: 2009 URL: http://orgprints.org/19279/1/6a_Flyer_Projektbeschrieb_Kilmaneutraler_Ackerbau_2009.pdf
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Yield and quality of wheat cultivars in organic and conventional farming systems - Is there an influence of the breeding history? Organic Eprints
Hildermann, Isabell; Fließbach, Andreas; Mäder, Paul.
Organic farmers often use the same wheat cultivars as conventional farmers. Most of these cultivars have been bred under high-input conditions. Organically managed soils frequently do not deliver enough nutrients and fertilizers are limited. Therefore cultivars bred under high-input conditions often cannot perform to the full extent of their high genetic potential. Better nutrient uptake efficiency would be of great value for organic farms and conventional farms, producing under low-input conditions. Studies with winter wheat showed that cultivars, selected directly under organic conditions finally yielded higher under organic conditions than cultivars selected under conventional conditions [1], indicating a successful adaptation to low-input conditions...
Tipo: Conference paper, poster, etc. Palavras-chave: Cereals; Pulses and oilseeds Composting and manuring Breeding; Genetics and propagation.
Ano: 2008 URL: http://orgprints.org/26487/1/Hildermann_etal_wheat_1108V04.pdf
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Soil bacterial and fungal communities along a soil chronosequence assessed by fatty acid profiling Organic Eprints
Welc, Monika; Bünemann, Else K.; Fließbach, Andreas; Frossard, Emmanuel; Jansa, Jan.
Microbial communities are important components of terrestrial ecosystems. The importance of their diversity and functions for natural systems is well recognized. However, a better understanding of successional changes of microbial communities over long time scales is still required. In this work, the size and composition of microbial communities in soils of a deglaciation chronosequence at the Damma glacier forefield were studied by fatty acid profiling. Soil fatty acid concentrations clearly increased with soil age. The abundances of arbuscular mycorrhizal fungi (AMF), bacteria and other soil fungi, however, were more affected by abiotic soil parameters like carbon content and pH than by soil age. Analysis of ratios of the different microbial groups (AMF,...
Tipo: Journal paper Palavras-chave: Soil quality.
Ano: 2012 URL: http://orgprints.org/21946/1/welc-etal-2012-SoilBioloBiochemistry-49-p184-192.pdf
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Long-term effects of organic farming on fungal and bacterial residues in relation to microbial energy metabolism Organic Eprints
Joergensen, Rainer Georg; Mäder, Paul; Fließbach, Andreas.
Samples from the bio-dynamic, bio-organic, and conventional trial, Therwil, Switzerland, were analyzed with the aim of determining the effects of organic land use management on the energy metabolism of the soil microbial biomass and on the fraction of microbial residues. The contents of adenylates, adenosine triphosphate (ATP), glucosamine, muramic acid, and galactosamine were significantly largest in the biodynamic organic farming (BYODIN) treatment and significantly lowest in the conventional farming treatment with inorganic fertilization (CONMIN). In contrast, the ergosterol-to-ATP ratio and fungal C-to-bacterial C ratios were significantly lowest in the BYODIN treatment and significantly largest in the CONMIN treatment. No clear treatment effects were...
Tipo: Journal paper Palavras-chave: Soil biology.
Ano: 2010 URL: http://orgprints.org/17860/1/Joergensen%2Detal%2D2010%2Dbiol%2Dfertil%2Dsoils.pdf
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Reduzierte Bodenbearbeitung reichert Humus und mikrobielle Biomasse oberflächlich an Organic Eprints
Fließbach, Andreas; Krauss, Maike; Maurer, C.; Dierauer, Hansueli; Mäder, Paul.
When residues and organic fertilizers are not incorporated into the soil, they build a top soil layer that is enriched in soil organic matter. This is leading to a soil layer with increased biological activity, while the soil layers below, receive less inputs in form of residues or manures and show a reduction in soil organic matter and biological activity. Soils from a replicated field trial and two on-farm trials were analysed for biological soil quality 6 years after the implementation of reduced tillage (RT) as compared to plough. Whilst crop yields were slightly lower with RT, weed cover was increasing, but not to a level that would compromise yields. Soils under RT accumulated soil organic matter in the tilled top layer of 0-10 cm, while in the...
Tipo: Conference paper, poster, etc. Palavras-chave: Soil quality; Soil biology; Soil.
Ano: 2017 URL: http://orgprints.org/31809/1/Reduzierte%20Bodenbearbeitung%20reichert%20Humus%20und%20Biomasse%20an.pdf
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Greenhouse gas fluxes from agricultural soils under organic and non-organic management - A global meta-analysis Organic Eprints
Skinner, Colin; Gattinger, Andreas; Müller, Adrian; Mäder, Paul; Fließbach, Andreas; Stolze, Matthias; Ruser, Reiner; Niggli, Urs.
It is anticipated that organic farming systems provide benefits concerning soil conservation and climate protection. A literature search on measured soil-derived greenhouse gas (GHG) (nitrous oxide and methane) fluxes under organic and non-organic management from farming system comparisons was conducted and followed by a meta-analysis. Up to date only 19 studies based on field measurements could be retrieved. Based on 12 studies that cover annual measurements, it appeared with a high significance that area-scaled nitrous oxide emissions from organically managed soils are 492 ± 160 kg CO2 eq. ha− 1 a− 1 lower than from non-organically managed soils. For arable soils the difference amounts to 497 ± 162 kg CO2 eq. ha− 1 a− 1. However, yield-scaled nitrous...
Tipo: Journal paper Palavras-chave: Soil quality; Air and water emissions.
Ano: 2014 URL: http://orgprints.org/24506/1/Skinner-etal-2014-SciTotalEnviron-468-469-p553-563.pdf
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Relation between soil organic matter and yield levels of nonlegume crops in organic and conventional farming systems Organic Eprints
Brock, Christopher; Fließbach, Andreas; Oberholzer, Hans-Rudolf; Schulz, Franz; Wiesinger, Klaus; Reinicke, Frank; Koch, Wernfried; Pallutt, Bernhard; Dittman, Bärbel; Zimmer, Jörg; Hülsbergen, Kurt-Jürgen; Leithold, Günter.
The aim of this study was to evaluate the interaction between yield levels of nonleguminous crops and soil organic matter (SOM) under the specific conditions of organic and conventional farming, respectively, and to identify implications for SOM management in arable farming considering the farming system (organic vs. conventional). For that purpose, correlations between yield levels of nonlegume crops and actual SOM level (Corg, Nt, Chwe, Nhwe) as well as SOM-level development were examined including primary data from selected treatments of seven long-term field experiments in Germany and Switzerland. Yield levels of nonlegume crops were positively correlated with SOM levels, but the correlation was significant only under conditions of organic farming, and...
Tipo: Journal paper Palavras-chave: Soil quality; Crop husbandry.
Ano: 2011 URL: http://orgprints.org/21782/1/brock-etal-2011-JPlantNutrSoilSci-Vol174-p568-575.pdf
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Soil biological quality in short- and long-term field trials with conventional and organic fertility input types Organic Eprints
Fließbach, Andreas; Schmidt, Christoph; Bruns, Christian; Palmer, Mike; Nietlispach, Bruno; Leifert, Carlo; Tamm, Lucius.
Soils of the DOK trial and three other field trials with manure input were analysed for effects on soil biology. While long-term effects indicate a new steady state at the DOK trial site, differences at the other field trials suggest that fresh manure at the Bonn trial and chicken manure at the UK sites are at least temporarily advantageous, probably due to their relatively fast mineralization.
Tipo: Conference paper, poster, etc. Palavras-chave: Soil biology; Soil quality; Composting and manuring.
Ano: 2007 URL: http://orgprints.org/9531/1/fliessbach-etal-2007-soil_biological_quality.pdf
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Gut fürs Klima? Ökologische und konventionelle Landwirtschaft im Vergleich Organic Eprints
Niggli, Urs; Fließbach, Andreas.
Der Öko-Landbau verfolgt mehrere Ziele gleichzeitig: Bäuerliches Einkommen verbessern, Erträge erhöhen, Umweltschäden vermeiden, Biodiversität fördern, attraktive Landschaften pflegen, Tiere artgerecht halten und gute Lebensmittel erzeugen. Im Sport wird ein Zehnkämpfer immer von einem Sprinter im Rennen geschlagen.Es wäre deshalb falsch,den Wert des Öko-Landbaus nur aufgrund einzelner Leistungen zu beurteilen.Multifunktionalität ist eine wichtige Qualität jeder zukünftigen Landwirtschaft,und hier schneidet der biologische Landbau sehr gut ab.Aber auch in Sachen Klimaschutz braucht er den Vergleich nicht zu scheuen, wie der folgende Beitrag auf der Basis zahlreicher Untersuchungen nachweisen kann. Ökologische Landwirtschaft erweist sich gegenüber anderen...
Tipo: Book chapter Palavras-chave: "Organics" in general; Biodiversity and ecosystem services.
Ano: 2009 URL: http://orgprints.org/16492/1/Niggli-Fliessbach-2009-Agrarbericht2009-klima.pdf
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Resilience of Organic versus Conventional Farming Systems in Tropical Africa: The Kenyan Experience Organic Eprints
Muriuki, Anne; Musyoka, Martha; Fließbach, Andreas; Forster, Dionys.
In Kenya, agriculture is largely carried out by smallholder farmers, in a mixed farming noncommercialised setting where application of synthetic fertilisers and pesticides is minimal. Agricultural production is low and constrained by declining soil fertility, pest and diseases and increasingly unpredictable weather due to global warming. This calls for more resilient farming systems.
Tipo: Conference paper, poster, etc. Palavras-chave: "Organics" in general; Crop husbandry; Africa.
Ano: 2012 URL: http://orgprints.org/21835/1/muriuki-etal-2012-tropentag2012-proceedings-p180.pdf
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Základy půdní úrodnosti Organic Eprints
Berner, Alfred; Böhm, Herwart; Brandhuber, Robert; Braun, Josef; Brede, Uwe; Colling-von Roesgen, Jean-Louis; Demmel, Markus; Dierauer, Hansueli; Doppler, Georg; Ewald, Bernd; Fisel, Thomas; Fließbach, Andreas; Fuchs, Jacques G.; Gattinger, Andreas; Häberli, Hansueli; Heß, Jürgen; Hülsbergen, Kurt-Jürgen; Köchli, Martin; Kolbe, Hartmut; Mäder, Paul; Müller, Adrian; Neesen, Peter; Patzel, Nikola; Pfiffner, Lukas; Schmidt, Harald; Weller, Stefan; Wild, Melanie.
Zvyšování půdní úrodnosti bylo pro průkopníky ekologického zemědělství základem veškerého jejich úsilí. Přesto zachování úrodné půdy mnohdy nebyla věnována dostatečná pozornost. Ekologické zemědělství je však na přirozené půdní úrodnosti závislé. Oslabená a poškozená půda nám nemůže poskytnout to, co od ní očekáváme. Udržet úrodnost půdy vyžaduje velkou péči. Předkládaná brožura ukazuje půdní úrodnost z různých úhlů pohledu. Naším záměrem však nebylo vytvořit obecně platný „návod k použití“. Informace mají být mnohem spíše podnětem k tomu, aby se o vztahu člověka k půdě smýšlelo jinak a aby se tento vztah utvářel ve prospěch budoucnosti.
Tipo: Book Palavras-chave: Soil.
Ano: 2013 URL: http://orgprints.org/24684/1/zaklady%20pudni%20urodnosti%20-%20nahled%2010.pdf
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Culturable fungi of stored "Golden Delicious" apple fruits: A one-season comparison study of organic and integrated production systems in Switzerland Organic Eprints
Granado, José; Thürig, Barbara; Kieffer, Edith; Petrini, Liliane; Fließbach, Andreas; Tamm, Lucius; Weibel, Franco; Wyss, Gabriela S..
The effects of organic and integrated production systems on the culturable fungal microflora of stored apple fruits from five matched pairs of certified organic and integrated ‘Golden Delicious’ farms were studied at five representative production sites in Switzerland. Isolated fungi were identified morphologically. Colonization frequency (percentage of apples colonized), abundance (colony numbers), and diversity (taxon richness) were assessed for each orchard. The standard quality of the stored fruits was comparable for both organic and integrated apples and complied with national food hygiene standards. Yeasts (six taxa) and the yeast-like fungus Aureobasidium pullulans were the dominant epiphytes, filamentous fungi (21 taxa) the dominant endophytes. The...
Tipo: Journal paper Palavras-chave: Fruit and berries Crop health; Quality; Protection.
Ano: 2008 URL: http://orgprints.org/26423/1/Granado_etal_2008_ME56.pdf
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How effective are ‘Effective microorganisms® (EM)’? Results from a field study in temperate climate Organic Eprints
Mayer, Jochen; Scheid, Susanne; Widmer, Franco; Fließbach, Andreas; Oberholzer, Hans-Rudolf.
Effective microorganisms® (EM) is a microbial inoculant promoted to stimulate plant growth and soil fertility in agriculture. In our study we investigated the effects of EM on crop yields and soil microbial parameters in a 4-year field experiment under organic management (2003–2006) in Zurich, Switzerland. Treatments of the EM preparations (i) the spraying agent EMA, (ii) EMA with the EM enriched organic substrate Bokashi and (iii) EMA with Bokashi and farmyard manure were applied in each year. As controls to treatments (i)–(iii) the same treatments were included with sterilised EM preparations and a control without EM application. Crop yields in each year and the soil microbiological parameters soil respiration, microbial biomass (SIR, CFE), dehydrogenase...
Tipo: Journal paper Palavras-chave: Soil biology.
Ano: 2010 URL: http://orgprints.org/17863/1/Mayer%2Detal%2D2010see%2Dfront%2Dmatter.pdf
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Einfluss von Pseudomonas fluorescens auf Ertrag von Weizen und mikrobielle Biomasse des Bodens Organic Eprints
Fließbach, Andreas; Mäder, Paul.
P. fluorescens is used in agriculture and horticulture as a plant growth promoting rhizobacterium. It colonizes root surfaces effectively and excretes compounds that are influencing plant nutrient uptake and plant health. Soils with different initial biological fertility were analysed 18 and 60 days after inoculating the freshly sown wheat plants with a suspension of a rifampicine tolerant strain of P. fluorescens CHA0, in order to evaluate its survival and lasting effect on soil microbial biomass. P. fluorescens had a lasting effect in soils with low initial biomass, but no lasting effects were found in biologically active soils.
Tipo: Conference paper, poster, etc. Palavras-chave: Soil biology; Soil quality.
Ano: 2009 URL: http://orgprints.org/14449/1/Fliessbach_14449.pdf
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Re-establishment of suppressiveness to soil- and air-borne diseases by re-inoculation of soil microbial communities Organic Eprints
Thürig, Barbara; Fließbach, Andreas; Berger, Nicole; Fuchs, Jacques G.; Kraus, Noemy; Mahlberg, Nicole; Nietlispach, Bruno; Tamm, Lucius.
The aim of this study was to investigate the potentials and limitations in restoring soil suppressiveness in disturbed soils. Soils from three sites in UK and Switzerland (STC, REC, THE) differing in their level of suppressiveness to soil-borne and air-borne diseases were γ-irradiated and this soil matrix was re-inoculated with 1% (w/w) of either parent native soil or native soil from the other sites (‘soil inoculum’). Suppressiveness to air-borne and soil-borne diseases was quantified by means of the host–pathogen systems Lepidium sativum (cress)–Pythium ultimum, an oomycete causing root rot and seedling damping-off, and Arabidopsis thaliana–Hyaloperonospora parasitica, an oomycete causing downy mildew. Soil microbial biomass, activity and community...
Tipo: Journal paper Palavras-chave: Soil biology Crop health; Quality; Protection.
Ano: 2009 URL: http://orgprints.org/17866/1/thuerig-etal-2009-see-front-matter.pdf
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Einfluss von biologischer und konventioneller Bewirtschaftung auf biologische Bodenqualitätsparameter: Entwicklungen im DOK Langzeitversuch nach pH-Regulierung Organic Eprints
Oberholzer, Hans-Rudolf; Fließbach, Andreas; Mäder, Paul; Mayer, Jochen.
In the long-term DOK field trial at Therwil, Switzerland, agricultural farming systems are compared since 1978: CONFYM (mineral and organic fertilisers, synthetic pesticides), BIOORG (organic fertilisers, mechanical weeding and biological disease and pest control) and BIODYN (with composted manure and bio-dynamic preparations), all of them at two fertiliser intensities of 0.7 and 1.4 livestock units per ha, respectively. They are compared with CONMIN (conventionally managed, exclusively minerally fertilised) and NOFERT (unfertilised control). CONFYM and CONMIN were limed with 2.7 t CaCO3 ha-1 in 1999, CONMIN with additional 2 t CaCO3 ha-1 in 2005, since pH values had dropped below officially recommended values. In spring of 1998 and 2006 soil...
Tipo: Conference paper, poster, etc. Palavras-chave: Soil biology; Soil quality.
Ano: 2009 URL: http://orgprints.org/14512/1/Oberholzer_14512.pdf
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Microbial response of soils with organic and conventional management history to the cultivation of Bacillus thuringiensis (Bt)-maize under climate chamber conditions Organic Eprints
Fließbach, Andreas; Nietlispach, Bruno; Messmer, Monika; Rodríguez- Romero, Ana-Sue; Mäder, Paul.
An experiment was carried out in a climate chamber to analyse if Bt-maize may cause particular changes in soils with different levels of microbial biomass and activity due to long-term management history. Among the soils selected, the ones managed organically for 30 years exhibited twice the microbial biomass and 2.6 times the dehydrogenase activity (DHA) of the soil from a field with long-term conventional maize monoculture. Soils were cultivated twice in a row with Bt-maize, its near-isogenic line and a conventional breeding line. We tested the hypotheses that (a) soil microbial biomass and activity are affected by the cultivation of Bt-maize and that (b) the influence of Bt-maize depends on the level of soil microbial biomass and activity. Shoot and...
Tipo: Journal paper Palavras-chave: Soil biology.
Ano: 2013 URL: http://orgprints.org/23134/1/Fliessbachetal-2013-BiolFertilSoils-published-online.pdf
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