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| Registros recuperados: 445 | |
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| Alföldi, Thomas. |
| Agroscope und FiBL starteten 1978 den DOK-Versuch bei Therwil BL. Die drei Buchstaben D, O und K stehen für die drei Anbausysteme, die hier verglichen werden: D für das biologisch-dynamische, O für das biologisch-organische und K für konventionell. Jedes Jahr wird ein Feldtag durchgeführt, um über die neuesten Projekte und Versuche zu informieren. Die zahlreichen Projekte des Nationalen Forschungsprogramms 68 “Ressource Boden“ (NFP 68) unterstreichen, wie aktuell der DOK-Versuch heute immer noch ist. Eines von 16 Projekten, die derzeit im DOK-Versuch laufen, untersucht die Auswirkungen der Bewirtschaftung auf die Bodenmikroorganismen, die Lachgas auf- oder abbauen. Es konnte gezeigt werden, dass Bio bezogen auf die Flächeneinheit weniger Lachgas... |
| Tipo: Video |
Palavras-chave: Soil biology; Environmental aspects. |
| Ano: 2015 |
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| Baldivieso-Freitas, Paola; Blanco-Moreno, José M.; Gutiérrez-López, Mónica; Peigné, Joséphine; Pérez-Ferrer, Alejandro; Trigo-Aza, Dolores; Sans, Francesc Xavier. |
| Earthworms are one of the most important soil macrofaunal groups, and they play a major role in agricultural ecosystems. Agricultural practices, such as reduced tillage, the use of green manures and organic fertilization, can be beneficial for earthworm populations in agricultural systems. However, under a Mediterranean climate, not much is known regarding their response to agricultural management. The aim of this study was to analyse the effects of tillage type, organic fertilization, and green manures on the density and biomass of earthworms in organic arable dryland. The trial was conducted in a four-year crop rotation with a complete factorial design that combined tillage system (mouldboard ploughing vs. chisel), fertilization (composted farmyard... |
| Tipo: Journal paper |
Palavras-chave: Crop combinations and interactions; Soil biology; Composting and manuring; Soil tillage. |
| Ano: 2017 |
URL: http://orgprints.org/32377/1/PBaldivieso_Pedobiologia_notrackchanges.docx |
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| Petersen, Søren O.; Schjønning, P.; Olesen, Jørgen E.; Christensen, S.; Christensen, B.T.. |
| In organic cropping systems, legumes, cover crops, residue incorporation, and manure application are used to maintain soil fertility, but the contributions of these management practices to soil nitrogen (N) supply remain obscure. We examined potential sources of N for winter wheat (Triticum aestivum L.) in four experimental cropping systems established in 1997 on three soil types. Three of the four systems were under organic management. Topsoil N, depth of the A horizon, and cumulated inputs of N since 1997 were determined at plot level. Labile soil N pools (mineral N, potentially mineralizable N [PMN], microbial biomass N [MBN]) were monitored during two growth periods; at one site, biomass C/N ratios were also determined. Soil for labile N analysis was... |
| Tipo: Journal paper |
Palavras-chave: Crop combinations and interactions; Soil biology; Nutrient turnover; Farm nutrient management. |
| Ano: 2013 |
URL: http://orgprints.org/22015/7/22015.pdf |
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| Schjønning, Per; Rasmussen, Karl J.; Munkholm, Lars J.; Nielsen, Peter S.. |
| I perioden 1996 til 2000 gennemførtes et markforsøg med forskellige jordbearbejdnings-systemer på Den økologiske Forsøgsstation Rugballegaard. Forsøgsarealet blev omlagt til økologisk drift i forbindelse med projektets start i 1996. Undersøgelserne gennemførtes i et fem-marks skifte, der ligeledes blev kørt ind i forbindelse med projektet. Det drejer sig om et såkaldt blandet sædskifte med byg/ært m. udlæg, 1. års kløvergræs, 2. års kløvergræs, havre og vinterhvede. Forsøget blev anlagt i fem marker (B1-B5), hvilket indebærer, at alle skiftets afgrøder blev dyrket hvert år. Fire forskellige jordbearbejdningssystemer blev undersøgt i et randomiseret blokforsøg med 4 blokke. De fire behandlinger omfattede to systemer med pløjning, nemlig led A med 20 cm... |
| Tipo: Report |
Palavras-chave: Soil quality; Weed management; Soil tillage; Soil biology. |
| Ano: 2002 |
URL: http://orgprints.org/188/1/djfm82.pdf |
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| Meyling, Nicolai V.. |
| Conservation biological control (CBC) is a pest management strategy in which farming management practices are adopted to enhance the living conditions for specific natural enemies of pests with the specific objective to suppress pest populations. Research in CBC strategies have mostly focused on provisioning of good living conditions for arthropod predators and parasitoids, usually ignoring entomopathogens as regulators of pest populations. Fungal entomopathogens are widespread in agro-ecosystems and infect a range of arthropod pests, and these fungi should therefore also be included in CBC. Knowledge of the ecology of indigenous populations of fungal entomopathogens is a prerequisite for the evaluation of their contributions to pest control and for... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Soil biology; Biodiversity and ecosystem services. |
| Ano: 2010 |
URL: http://orgprints.org/17403/4/17403.pdf |
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| Hartmann, Martin; Fliessbach, Andreas; Oberholzer, Hans-Rudolf; Widmer, Franco. |
| Biological soil characteristics such as microbial biomass, community structures, activities, and functions may provide important information on environmental and anthropogenic influences on agricultural soils. Diagnostic tools and detailed statistical approaches need to be developed for a reliable evaluation of these parameters, in order to allow classification and quantification of the magnitude of such effects. The DOK long-term agricultural field experiment was initiated in 1978 in Switzerland for the evaluation of organic and conventional farming practices. It includes three representative Swiss farming systems with biodynamic, bio-organic and conventional fertilization and plant protection schemes along with minerally fertilized and unfertilized... |
| Tipo: Journal paper |
Palavras-chave: Soil biology; Soil quality. |
| Ano: 2006 |
URL: http://orgprints.org/9083/1/fliessbach%2Detal%2D2005%2DFEMSEC_132.pdf |
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| Fliessbach, A.; Widmer, F.. |
| With growing concern about the protection of soil quality and biodiversity many countries have established regional and national programmes to monitor soil quality. This book reviews the theory and practice of a range of the various microbiological methods used within these programmes. The first section gives an overview of approaches to monitoring, evaluating and managing soil quality. The second section provides a practical handbook with detailed descriptions of the methods. The methods are described in chapters on soil microbial biomass and numbers, soil microbial activity, soil microbial diversity and community composition, and plant-microbe interactions and soil quality. Finally, a census is given of the main methods used in over 30 European... |
| Tipo: Book chapter |
Palavras-chave: Soil biology; Soil quality. |
| Ano: 2005 |
URL: http://orgprints.org/9093/1/fliessbach%2Dwidmer%2D2005%2Dmicrobial%2Dbiomass.pdf |
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| Van den Akker, J.J.H.; Schjønning, P.. |
| Subsoil compaction affects all aspects of soil quality, and contrary to topsoil compaction it is persistent. Natural alleviation processes such as wetting/drying, freezing/thawing and biological activity including root growth decrease rapidly with depth. In compacted soil, these alleviation processes are moreover diminished because root growth and biological activity are reduced and soil water contents remain higher in compacted than in well-structured soil. Wheel loads are still increasing and, in consequence, the extent and severity of subsoil compaction. Sustainable soil management requires the uncompromising criterion that no subsoil compaction can be accepted. Consequently, only field traffic with wheel loads lower than the carrying capacity of the... |
| Tipo: Book chapter |
Palavras-chave: Buildings and machinery; Soil quality; Soil tillage; Soil biology. |
| Ano: 2004 |
URL: http://orgprints.org/1473/1/Chapt10_tex_ref_tab_final.doc |
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| Cette étude vise à évaluer l’effet bénéfique de la biotisation pour favoriser la croissance et améliorer la production de cultures de fraisiers en sol. Trois micro-organismes (une souche de Fusarium oxysporum non pathogène Fo47, une souche de Pseudomonas fluorescens A6, une espèce de champignon endomycorhizogène Glomus intraradices) sont incorporés en combinaisons binaires dans le substrat d’acclimatation des plantules. Après quatre semaines, les plantes sont transplantées dans quatre sols différents. Les analyses microbiologiques montrent la bonne installation de Fo47 et P.f. A6 dans les quatre sols naturels. Aucun effet négatif de la co-inoculation n’est observé. Une augmentation non significative de la production est observée pour les fraisiers... |
| Tipo: Project description |
Palavras-chave: Soil biology. |
| Ano: 2023 |
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| Cania, Barbara; Vestergaard, Gisle; Krauss, Maike; Fliessbach, Andreas; Schloter, Michael; Schulz, Stefanie. |
| Background: Stable soil aggregates are essential for optimal crop growth and preventing soil erosion. However, tillage is often used in agriculture to loosen the soil, which disrupts the integrity of these aggregates. Soil aggregation can be enhanced by bacteria through their ability to produce exopolysaccharides and lipopolysaccharides. These compounds stabilize soil aggregates by “gluing” soil particles together. However, it has yet to be shown how tillage influences the bacterial potential to produce aggregate-stabilizing agents. Therefore, we sampled conventional and reduced tillage treatments at 0–10 cm, 10–20 cm and 20–50 cm from a long-term field trial in Frick, Switzerland. We compared the stable aggregate fraction of the soil and the bacterial... |
| Tipo: Journal paper |
Palavras-chave: Soil quality; Soil biology; Biodiversity and ecosystem services. |
| Ano: 2019 |
URL: http://orgprints.org/35214/1/Cania_EnvMic_2019.pdf |
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| Müller, Dr. Torsten; Magid, Dr. Jakob; Jensen, Dr. Lars Stoumann; Nielsen, Dr. Niels Erik; Thorup-Kristensen, Dr. Kristian. |
| During the last years, an increasing number of stockless farms in Europe converted to organic farming practice without re-establishing a livestock. Due to the lack of animal manure as a nutrient input, the relocation and the external input of nutrients is limited in those organic cropping systems. The introduction of a one-year green manure fallow in a 4-year crop rotation, including clover-grass mixtures as a green manure crop is the classical strategy to solve at least some of the problems related to the missing livestock. The development of new crop rotations, including an extended use of catch crops and annual green manure (legumes) may be another possibility avoiding the economical loss during the fallow year. Modelling of the C and N turnover in... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Nutrient turnover; Production systems; Crop combinations and interactions; Vegetables; Soil biology. |
| Ano: 2002 |
URL: http://orgprints.org/127/1/0830.pdf |
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| Raubuch, Markus; Pyttlik, Claudia; Jörgensen, Rainer Georg. |
| In dieser Untersuchung wurden die Auswirkungen die C- und N-Mineralisation und die Rolle der mikrobiellen Biomasse als möglicher Stickstoffpuffer bzw. Zwischenspeicher in einem Zweikulturennutzungssystem erfasst. Die Ergebnisse der Untersuchung beziehen sich auf den pflanzenbaulichen Versuch von Graß und Scheffer 2002 auf der Hessischen Staatsdomäne Frankenhausen. Dabei sollte die Auswirkung von Bodenbearbeitungsmaßnahmen und Düngerapplikationen unterschiedlicher Intensität durch die monatlichen Erhebungen zur Erfassung des mikrobiell gebundenen Kohlen- und Stickstoffes, der C- und N-Mineralisationsleistung abgeschätzt werden. Da der Versuch zum Zeitpunkt der Tagungsanmeldung noch nicht abgeschlossen war, sind in dieser Kurzfassung nur die unvollständigen... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Soil biology. |
| Ano: 2003 |
URL: http://orgprints.org/1023/1/raubuch%2D2003%2Dbodenfruchtbarkeit.pdf |
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| Registros recuperados: 445 | |
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