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Effects of plant residues on crop performance, N mineralisation and microbial activity including field CO2 and N2O fluxes in unfertilised crop rotations Organic Eprints
Vinther, F.P.; Hansen, E.M.; Olesen, J.E..
The impacts of crop rotation and input of organic matter in the form of green manure crops, straw residues and incorporation of catch crops on crop yield, nitrogen uptake, microbial biomass and activity was studied in unfertilised crop rotations differing in input of plant residues, i.e. high-input rotations with a grass-clover crop and catch crops included and low-input cereal rotations without catch crops. The parameters studied included substrate induced respiration (SIR), hydrolysis of fluorescein diacetate (FDA), arylsulfatase activity (ASA), N mineralisation, N2O emission, and soil respiration. These parameters were measured in bare soil plots, to estimate the effects of previous years crops and input of plant residues. In neighbouring plots crop...
Tipo: Journal paper Palavras-chave: Nutrient turnover; Soil biology; Soil quality; Air and water emissions.
Ano: 2004 URL: http://orgprints.org/4012/1/Vinther%2C_Hansen_Olesen_2004.pdf
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Effects of ploughing depth on decomposition of barley straw in organically managed soil Organic Eprints
Pommeresche, Reidun; Løes, Anne-Kristin; Meisingset, Erling L.; Hansen, Sissel.
Litterbag were used to study the effects of different ploughing depths on decomposition rate of barley straw with different ploughing depths. The burying depth of the litter (13 vs 25 cm) affected the decomposition rate of barely straw more than the different ploughing depths (13 vs 25 cm). From our results we suggest that slowly decomposable organic matter, such as leached barley straw, may be incorporated deeply by ploughing in organic cereal production systems, in order to regulate perennial weeds. In soils with good structure and porosity, the decomposition rate of straw can even be larger with deep ploughing. In dense, clayey soils it is important to be very accurate in ploughing time in order to secure that the ploughing is in fact loosening the...
Tipo: Web product Palavras-chave: Soil biology; Soil tillage.
Ano: 2006 URL: http://orgprints.org/8765/1/barley_t_1_24_pommeresche_2006.pdf
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Effects of reduced tillage on soil organic carbon and microbial activity in a clayey soil Organic Eprints
Berner, Alfred; Fliessbach, Andreas; Nietlisbach, Bruno; Mäder, Paul.
In a long-term field trial recently launched (2002-2011), located in Frick (878 mm mean annual precipitation) near Basle, Switzerland, the effect of reduced tillage on soil fertility indicators and crop yield was studied in a heavy soil (45% clay) in a crop rotation under organic farming conditions. We present the results of soil analyses after three cropping years (2002-2005). Soil organic carbon (Corg) increased over that period by 7.4% (+1.5 g Corg kg-1 soil) in the 0-10 cm soil layer in the reduced tillage plots, while it remained constant in the ploughed plots. Soil microbial carbon (Cmic) and dehydrogenase activity (DHA, TTC-reduction) were 28% higher in reduced-tillage plots in this soil layer. Biological soil quality as calculated by Cmic to Corg...
Tipo: Conference paper, poster, etc. Palavras-chave: Soil biology; Soil quality; Soil tillage.
Ano: 2008 URL: http://orgprints.org/12303/1/Berner_12303_ed.doc
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Effects of sewage sludge and copper enrichment on both soil mesofauna community and decomposition of oak leaves (Quercus suber) in a mesocosm Organic Eprints
Pernin, C.; Ambrosi, J.P.; Cortet, J.; Joffre, R.; Tabone, E.; Torre, F.; Krogh, P.H..
A laboratory mesocosm experiment was performed to study the effects of copper-enriched sewage sludge application on a mesofauna community. For 12 weeks, characteristics and changes in this defined and artificial mesofauna community structure were monitored as well as the dynamics of leaf litter decomposition. The mesofauna community comprised six species of Collembola (Folsomia fimetaria, Isotomurus prasinus, Lepidocyrtus cyaneus, Mesaphorura macrochaeta, Parisotoma notabilis, Protaphorura armata), two species of acari Oribatida (Achipteria coleoptrata, Adoristes sp.), one species of acari Gamasida Hypoaspis aculeifer) and one species of enchytraeid (Enchytraeus crypticus). Three treatments included the addition of 22 g dry weight (DW) sludge spiked with...
Tipo: Journal paper Palavras-chave: Landscape and recreation; Soil biology; Biodiversity and ecosystem services; Soil quality.
Ano: 2006 URL: http://orgprints.org/21199/2/21199.pdf
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Effects of two contrasted arbuscular mycorrhizal fungal isolates on nutrient uptake by Sorghum bicolor under drought Organic Eprints
Symanczik, S.; Lehmann, M. F.; Wiemken, A.; Boller, T.; Courty, P. E..
Drought is a limiting factor for crop production, especially in arid and semi-arid climates. In this study, Sorghum bicolor plants were inoculated, or not, with Rhizophagus irregularis, an arbuscular mycorrhizal (AM) strain typical for temperate climates, or Rhizophagus arabicus, a strain endemic to hyper-arid ecosystems. Plants were grown under well-watered or drought conditions in compartmented microcosms. Transpiration rates, plant growth, and nutrient uptake (using 15N as a tracer) were determined to assess the impact of drought stress on sorghum plants in AM symbiosis. Although AM colonization did not affect the bulk biomass of host plants, R. arabicus improved their transpiration efficiency and drought tolerance more than R. irregularis. Moreover, R....
Tipo: Journal paper Palavras-chave: Soil biology.
Ano: 2018 URL: http://orgprints.org/34760/1/symanczik-etal-2018_mycorrhiza-Vol28_Issue8-p779-785.pdf
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EFFETTI DELLA RIDOTTA FUNZIONALITÀ DEL SUOLO IN VIGNETI EUROPEI Organic Eprints
Costantini, E.A.C..
Risultati progetto ReSolVe- Restoring optimal Soil functionality in degraded areas within organic Vineyards (Ripristino della funzionalità ottimale del suolo in aree degradate di vigneti biologici), finanziato per gli anni 2015-2018 dal fondo europeo FP7 ERA-net project, CORE Organic Plus presentati al convegno dal titolo” IL SUOLO NELLA GESTIONE DEL VIGNETO BIO: CONTRIBUTI DALLA RICERCA”.
Tipo: Newspaper or magazine article Palavras-chave: Soil quality; Soil biology; Soil; Food systems; Environmental aspects.
Ano: 2017 URL: http://orgprints.org/32492/1/Georgofili2017.pdf
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Effetti della ridotta funzionalità del suolo in vigneti europei Organic Eprints
Costantini, E.A.C.; Priori, S..
Resolve SISS 2017 Effetti della ridotta funzionalità del suolo in vigneti europei Edoardo A.C. Costantini (1), Simone Priori (1), Alessandro Elio Agnelli (1), Ehran Akca (8), Maurizio Castaldini (1), Lorenzo D’Avino (1), Emma Fulchin (5), Elena Gagnarli (2), Brice Giffard (4), Mehmet Erdem Kiraz (9), Matej Knapič (10), Alessandra Lagomarsino (1), Silvia Landi (2), Radojko Pelengić (10), Sergio Pellegrini (1), Rita Perria (3), Sergio Puccioni (3), Hans-Josef Schroers (10), Sauro Simoni (2), Paolo Storchi (3), Semih Tangolar (7), Javier Tardaguila (6), Giuseppe Valboa (1), Nadia Vignozzi (1), Alessandra Zombardo (3). (1) CREA-AA, Consiglio per la ricerca in agricoltura e l’analisi dell’economia agraria, Research Center Agriculture and Environment,...
Tipo: Conference paper, poster, etc. Palavras-chave: Soil quality; Soil biology; Soil.
Ano: 2017 URL: http://orgprints.org/32417/1/Effetti%20della%20ridotta%20funzionalit%C3%A0%20del%20suolo%20in%20vigneti%20europei.pdf
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Efterafgrøder gavner smådyr - og dermed landmanden Organic Eprints
Axelsen, J.
Vi vidste dermed, at efterafgrøder kan medføre store mængder af springhaler og mider, når de anvendes som grøngødning, men hvad med den tid de vokser på markerne? Det fik vi mulighed for at undersøge i 2000 på økologisk drevne parceller på Forsknings-center Årslev (lerjord) og i 2003 på Forskningcenter Jyndevad (sandjord), og her faldt rekorden fra 1998, idet vi fandt tætheder på op til 140.000 springhaler og 130.000 mider pr. m2 sidst på efteråret i Årslev (Figur 1). De højeste tal var fra hvidkløver, rajgræs og cikorie. Der var her tale om undersåede efterafgrøder, der havde fået lov at stå urørte i marken efter høst af hovedafgrøden. I novemberprøven var der mellem 5 og 10 gange flere dyr i disse afgrøder end i kontrollerne, der blev holdt uden...
Tipo: Newspaper or magazine article Palavras-chave: Soil biology; Biodiversity and ecosystem services.
Ano: 2005 URL: http://orgprints.org/7990/1/7990.doc
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Efterafgrøder med mange formål Organic Eprints
Thorup-Kristensen, Kristian.
Short article about the use of catch crops for many purposes in organic farming.
Tipo: Newspaper or magazine article Palavras-chave: Nutrient turnover; Production systems; Soil biology.
Ano: 2003 URL: http://orgprints.org/551/1/efterafgr_klumme.pdf
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Efterafgrøder og grøngødning giver masser af liv i jorden Organic Eprints
Axelsen, Jørgen Aagaard.
Artiklen omhandler observationer af meget høje tætheder af springhaler og mider i jorden efter ompløjning af forskellige slags grøngødning, samt meget høje tætheder af disse dyr i efterafgrøder i løbet af efteråret, vinteren og foråret.
Tipo: Newspaper or magazine article Palavras-chave: Soil quality; Production systems; Biodiversity and ecosystem services; Farming Systems; Soil biology.
Ano: 2003 URL: http://orgprints.org/1593/1/Dokument.doc
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Ein Solitär wird 40 Jahre alt Organic Eprints
Mäder, Paul; Krause, Hans-Martin; Fliessbach, Andreas.
Der weltweit einmalige Langzeitversuch „DOK“, der die drei Ackerbausysteme biologisch-dynamisch, organisch-biologisch und konventionell vergleicht, feiert Geburtstag. Paul Mäder, Hans-Martin-Krause und Andreas Fliessbach fassen die spannendsten Ergebnisse zu Boden, Artenvielfalt, Klimawirkung, Ertrag und Effizienz aus 40 Jahren DOK zusammen.
Tipo: Newspaper or magazine article Palavras-chave: Soil biology; Systems research and participatory research; Nutrient turnover.
Ano: 2019 URL: http://orgprints.org/36575/1/maeder-etal-2019-OEL04-p32-34pdf.pdf
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Einfluss der Düngung mit Gärrückständen aus der Biogaserzeugung auf den Ertrag von Silomais und auf die bodenmikrobielle Aktivität Organic Eprints
Kautz, Timo; Rauber, Rolf.
Organic manuring with slurry from biogas plants may contribute to plant nutrition and maintenance of soil fertility in organic farming. However, the chemical properties of biogas slurry depend markedly on substrate input and process technology. The aim of this study was to gain more insights into the relationship between the quality of biogas slurry and its influences on plant and soil parameters when applied as organic ma-nure. We studied the effects of slurries from two different biogas plants on yield of maize and soil microbial activity in a two-year field experiment. The investigation took place on a loam-clay soil near Göttingen, Lower Saxony. Biogas slurry A was obtained from a biogas plant with liquid pig manure as main input, slurry B originated...
Tipo: Conference paper, poster, etc. Palavras-chave: Soil biology; Composting and manuring.
Ano: 2007 URL: http://orgprints.org/9854/1/9854_Kautz_Vortrag.pdf
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Einfluss reduzierter Grundbodenbearbeitung im Ökologischen Landbau auf bodenökologische Eigenschaften Organic Eprints
Emmerling, Christoph.
Im vorliegenden Beitrag werden ausgewählte Ergebnisse zum Einfluss unterschiedlicher Grundbodenbearbeitungsverfahren aus dem „Projekt Ökologische Bodenbearbeitung“ nach Ablauf der ersten fünfjährigen Fruchtfolgeperiode für die Kulturen Grünbrache und Roggen vorgestellt. Hierzu wurden die Ergebnisse der Nährstoffversorgung, der bodenmikrobiellen Eigenschaften und der Besiedlung der Böden durch Regenwürmer der Jahre 1995 bis 1999 ausgewertet. Inhalt: - Einleitung - Material und Methoden im Versuchsfeld Eichenhof - Ergebnisse: --- Nährstoffhaushalt und organische Bodensubstanz --- Bodenmikrobiologische Eigenschaften --- Besiedlung durch Regenwürmer - Diskussion - Schlussfolgerungen für die Praxis - Danksagung - Literatur
Tipo: Book chapter Palavras-chave: Soil biology; Soil quality; Soil tillage.
Ano: 2002 URL: http://orgprints.org/1738/1/1738%2Demmerling%2Dc%2D2002%2Dzwischenbericht%2Dpoeb.pdf
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Einfluss von Agroforst-Hecken auf die epigäische Bodenfauna Organic Eprints
Burmeister, Johannes.
Mit Bodenfallen wurde die epigäische Fauna eines Agroforstsystems an zwei Standorten in Bayern untersucht. Ein deutlicher Effekt der Agroforst-Hecken auf den Artenreichtum der Laufkäfer der angrenzenden Ackerfläche wurde vier Jahre nach der Anpflanzung der Pappelhecke noch nicht nachgewiesen. Die Pappelpflanzungen erhöhten jedoch die Vielfalt des Systems insgesamt und boten Überwinterungsmöglichkeiten für spezifische Nützlinge, wie den Laufkäfer Anchomenus dorsalis.
Tipo: Conference paper, poster, etc. Palavras-chave: Soil biology; Biodiversity and ecosystem services.
Ano: 2014 URL: http://orgprints.org/27373/1/Burmeister%20J_2014_epigaeische%20Bodenfauna.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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Einfluss von Pestiziden auf die Bodenfruchtbarkeit Organic Eprints
Stand der Forschung: In diesem Projekt werden die kurz- und langfristigen Auswirkungen von praxisüblichen Pflanzenschutzmittelspritzfolgen, die in der integrierten Produktion (IP) gebräuchlich sind, auf die Bodenlebewesen gemessen. Dazu werden in einem Feld, das zuvor langfristig biologisch bewirtschaftet wurde, chemische Pflanzenschutzmittel in einer Fruchtfolge angewendet. Des weiteren werden auf einem anderen Betrieb die Auswirkungen einer Umstellung von IP auf biologischen Landbau (Bio) auf ausgewählte Parameter der Bodenfruchtbarkeit erfasst. Auf diesem Betrieb werden vier Schläge in vierfacher Wiederholung (10 x 10 m Teilflächen) alle drei Jahre nach Referenzmethoden beprobt und analysiert. Die Ergebnisse von vorangestellten Modellversuchen in...
Tipo: Project description Palavras-chave: Environmental aspects; Soil biology.
Ano: 2022
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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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Eiweißstoffwechsel und Bodenfruchtbarkeit Organic Eprints
Scheller, Edwin.
Die Lebensprozesse im Boden werden in hohem Maße durch den Eiweißstoffwechsel getragen. Je ausgewogener und besser der Eiweißstoffwechsel, desto besser sind auch die Parameter der Bodenfruchtbarkeit. Zudem scheint es einen Zusammenhang zwischen der durch die Kupferchloridkristallisation erfassbaren Produktqualität und dem Eiweißstoffwechsel im Boden zu geben. (aus: Bioland 1/2002)
Tipo: Journal paper Palavras-chave: Nutrient turnover; Soil biology.
Ano: 2002 URL: http://orgprints.org/1369/1/1369%2Dscheller%2D2001%2Deiwei%C3%9Fstoffwechsel%2DBioland.pdf
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Ekologisk jordbruks- och trädgårdsproduktion, Formasprogrammet 2001-2004 - markvetenskap Organic Eprints
Regeringen gav våren 2001 Forskningsrådet för miljö, areella näringar och samhällsbyggande (Formas) 69 miljoner kronor för ett treårigt forskningsprogram om ekologisk jordbruks- och trädgårdsproduktion. Pengarna delades ut till 23 projekt inom insatsområdet ekologisk produktion.
Tipo: Research Programme description Palavras-chave: Nutrient turnover; Soil biology.
Ano: 2022
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Enhanced natural regulation of the belowground pest Delia radicum in organic farming systems Organic Eprints
Meyling, Nicolai V.; Navntoft, Søren; Philipsen, Holger; Thorup-Kristensen, Kristian; Eilenberg, Jørgen.
Population dynamics of the cabbage root fly Delia radicum in three different organic and one conventional cabbage cropping systems were evaluated over 3 years. Oviposition was reduced over time, but not affected by organic farming practice. Pupal production was reduced in all organic systems compared to the conventional system in all years, but pupal parasitation rates were similar among systems. More predators of fly eggs were present in the organic system O2. Reduced larval survival rates in the organic systems may be result of increased natural enemy activity and plant effects.
Tipo: Journal paper Palavras-chave: Soil biology; Vegetables; Biodiversity and ecosystem services.
Ano: 2011 URL: http://orgprints.org/19304/4/19304.pdf
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