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Wheat trials - How reliably do wheat varieties perform under different organic farming conditions? Organic Eprints
Döring, Thomas F.; Haigh, Zoe; Pearce, Helen; Pearce, Bruce; Jones, Hannah; Clarke, Sarah; Wolfe, Martin.
A major obstacle in the development of organic farming in the UK is the central problem of winter wheat production. At present, there is a substantial gap between the supply of home-grown organic milling wheat and demand, partially due to shortfalls in both wheat yield and quality. Progress is being made in organic wheat breeding programmes across Europe, although the varieties arising from these are not widely available in the UK. A crucial and unanswered question is how reliably varieties will perform under the diverse conditions that prevail on organic farms. Wheat trial results reported here indicate that the main effects of variety, location, year, or farming practice may often be more important than the complex interactions among these factors....
Tipo: Newspaper or magazine article Palavras-chave: Breeding; Genetics and propagation.
Ano: 2009 URL: http://orgprints.org/19799/1/2009.Doring_et_al.OrgFarm.pdf
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Using legume-based mixtures to enhance the nitrogen use efficiency and economic viability of cropping systems. Organic Eprints
Baddeley, J. A.; Döring, Thomas F.; Hatch, David; Marshall, Athole; Pearce, Bruce; Roderick, S; Stobart, Ron; Storkey, Jonathan; Watson, C.A.; Wolfe, Martin.
There is a pressing need to develop arable cropping systems that are both more efficient in their use of nitrogen (N) and more resilient to an increasingly variable and unpredictable climate. One potential solution is to use species-rich mixtures of grasses and legumes in the fertilitybuilding phase of a ley/arable crop rotation. These mixtures may reduce N losses and increase productivity of the following crop. They may also have other important benefits such as increased in-field biodiversity. In this project, legume and grass species with a range of tolerances to different environmental conditions, and with differing growth characteristics, are being grown individually and as a mixture across the UK, and their performance assessed.
Tipo: Conference paper, poster, etc. Palavras-chave: Nutrient turnover; Crop husbandry.
Ano: 2010 URL: http://orgprints.org/19774/1/SACSEPA2010JAB.pdf
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THE MEANING OF ‘HEALTH’ IN THE ORGANIC PRINCIPLE OF HEALTH Organic Eprints
Vieweger, Anja; Döring, Thomas F..
In the early 1940’s, Lady Eve Balfour concluded in her book ‘The Living Soil’ that: “The health of soil, plant, animal and man is one and indivisible” (Balfour, 1943). With this key statement she set one of the founding stones for the principles of the organic agriculture movement, later laid down by the International Federation of Organic Agriculture Movements (IFOAM, 2005). It describes the connection of health between soils, plants, animals and humans, and implies that the promotion and maintenance of human health, as one of the highest goals of mankind, critically depends on the health in all other agricultural domains. However, current debates about the meaning and measurement of health are largely disconnected: soil science, plant pathology,...
Tipo: Conference paper, poster, etc. Palavras-chave: Food security; Food quality and human health Systems research and participatory research Health and welfare.
Ano: 2014 URL: http://orgprints.org/23276/1/23276_Health%20Concepts_Vieweger%20and%20Doering_MM.pdf
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Shallow non-inversion tillage in organic farming maintains crop yields and increases soil C stocks: a meta-analysis Organic Eprints
Cooper, Julia; Baranski, Marcin; Stewart, Gavin; Nobel-de Lange, Majimcha; Barberi, Paolo; Fliessbach, Andreas; Peigne, Joséphine; Berner, Alfred; Brock, Christopher; Casagrande, Marion; Crowley, Oliver; David, Christophe; De Vliegher, Alex; Döring, Thomas F.; Dupont, Aurélien; Entz, Martin; Grosse, Meike; Haase, Thorsten; Halde, Caroline; Hammerl, Verena; Huiting, Hilfred; Leithold, Günter; Messmer, Monika; Schloter, Michael; Sukkel, Wijnand; van der Heijden, Marcel G. A.; Willekens, Koen; Wittwer, Raphaël; Mäder, Paul.
Reduced tillage is increasingly promoted to improve sustainability and productivity of agricultural systems. Nonetheless, adoption of reduced tillage by organic farmers has been slow due to concerns about nutrient supply, soil structure, and weeds that may limit yields. Here, we compiled the results from both published and unpublished research comparing deep or shallow inversion tillage, with various categories of reduced tillage under organic management. Shallow refers to less than 25 cm. We found that (1) division of reduced tillage practices into different classes with varying degrees of intensity allowed us to assess the trade-offs between reductions in tillage intensity, crop yields, weed incidence, and soil C stocks. (2) Reducing tillage intensity in...
Tipo: Journal paper Palavras-chave: Soil quality; Soil tillage.
Ano: 2016 URL: http://orgprints.org/29974/1/Cooper-etal-2016-ASD-36_22.pdf
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Reduzierter Blattlausbefall durch Strohmulch in ökologisch angebauten Kartoffeln Organic Eprints
Döring, Thomas F.; Heimbach, Udo; Thieme, Thomas; Saucke, Helmut.
Aphids are important pests in potatoes, mainly due to their ability to transmit virus diseases. 17 field experiments were conducted over 4 years at 4 sites on organically managed farms to investigate the effect of straw mulch, applied at various amounts (2–8 t ha-1) shortly after crop emergence, on aphid infestation of potato leaves. The percentage of leaves infested with aphids was repeatedly determined during the growing period in 10 experiments. It was significantly reduced in the mulched treatments at the time around 2 weeks after mulching in 4 experiments, and later, at peak infestation, in 8 experiments. The aphid population size was regularly determined in 11 experiments and was significantly reduced by mulching in 4 of them. In a small scale...
Tipo: Journal paper Palavras-chave: Crop health; Quality; Protection Root crops.
Ano: 2006 URL: http://orgprints.org/19776/1/2006%2DDoring_et_al%2DMDGAAE.pdf
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Using minimum tillage to improve the efficiency of ecosystem service delivery on organic farms Organic Eprints
Crowley, Oliver; Döring, Thomas F.; Measures, Mark.
Organic farming practices aim to maximise the delivery of ecosystem services in the agricultural landscape. However, in order to maintain optimal crop productivity the mouldboard plough is often used to control weeds and this can have negative effects on a range of soil parameters, thereby jeopardizing delivery of these services. Reduced tillage (RT) can be beneficial to soils and could improve both the efficiency of production and the delivery of ecosystem services on organic farms. However, abandoning the plough on organic farms is challenging due to impaired weed control. Here we report on a two year trial where an RT system with the Ecodyn, with duck feet shares operating at a depth of 7.6 cm in combination with seed drilling, was compared with...
Tipo: Conference paper, poster, etc. Palavras-chave: Soil tillage; Soil; Biodiversity and ecosystem services; Weed management.
Ano: 2012 URL: http://orgprints.org/20721/1/Crowley_et_al_2012_Reduced_tillage_and_ecosystem_service_delivery_on_organic_farms.pdf
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Wirkungen konservierender Bodenbearbeitung auf Regenwürmer unter Kleegras im ökologischen Landbau Organic Eprints
Haby, Jessica; Döring, Thomas F.; Crowley, Oliver; Lazzaro, Mariaterresa; Smith, Jo.
A key challenge in organic agriculture is the reduction of tillage intensity. While previous research has shown earthworms to benefit from reduced tillage (RT), little is known about after-effects of RT during the grass/clover ley phase in organic rotations. In a large-scale replicated on-farm trial in England we studied earthworm populations before and during the ley phase, comparing the Ecodyn cultivator (tilling depth: 7.5 cm) with a mouldboard plough (depth: 15 cm). Spring sampling of earthworms during the ley phase revealed no significant difference in earthworm densities between the two tillage treatments while two years earlier in the arable phase, earthworm densities had been significantly higher under RT. Also, differences in species composition...
Tipo: Conference paper, poster, etc. Palavras-chave: Soil tillage; Soil.
Ano: 2015 URL: http://orgprints.org/26932/1/26932_haby.pdf
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Composite Cross Populations of Cereals in Practice: Arguments and Recent Developments in the Legal Framework Revision Organic Eprints
Wolfe, Martin; Howlett, Sally; Fradgley, Nick; Winkler, Louisa; Pearce, Bruce; Döring, Thomas F..
Tipo: Conference paper, poster, etc. Palavras-chave: Breeding; Genetics and propagation Crop health; Quality; Protection Weed management.
Ano: 2013 URL: http://orgprints.org/27955/1/2013.Wolfe%20et%20al%20Eucarpia.pdf
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Oat variety characteristics for suppressing weeds Organic Eprints
Döring, Thomas F.; Winkler, Louisa; Fradgley, Nick.
Oats are a valuable food source and useful in the crop rotation both in organic and conventional farming systems, partly because of their excellent weed suppression ability. Thomas Döring, Louisa Winkler and Nick Fradgley report new results that show how plant breeding can make oats even better.
Tipo: Newspaper or magazine article Palavras-chave: Breeding; Genetics and propagation Weed management.
Ano: 2012 URL: http://orgprints.org/22135/1/Bulletin%20111.pdf
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Legume based plant mixtures for delivery of multiple ecosystem services: An overview of benefits Organic Eprints
Döring, Thomas F.; Baddeley, J. A.; Brown, RJ; Collins, R; Crowley, Oliver; Cuttle, Steve; McCalman, Heather; Pearce, Bruce; Roderick, Stephen; Stobart, Ron; Storkey, Jonathan; Watson, Christine; Wolfe, Martin; Jones, H E.
As costs for mineral fertilizers rise, legume-based leys are recognised as a potential alternative nitrogen source for crops. Here we demonstrate that including species-rich legume-based leys in the rotation helps to maximize synergies between agricultural productivity and other ecosystem services. By using functionally diverse plant species mixtures these services can be optimised and fine-tuned to regional and farm-specific needs. Field experiments run over three years at multiple locations showed that the stability of ley performance was greater in multi-species mixtures than in legume monocultures. In addition, mixing different legume species in the ley helps to suppress both early and late weeds. Further, combining complementary phenologies of...
Tipo: Conference paper, poster, etc. Palavras-chave: Pasture and forage crops; Nutrient turnover; Biodiversity and ecosystem services.
Ano: 2012 URL: http://orgprints.org/20718/1/Doring_et_al_2012_Legume_mixtures_for_ecosystem_service_delivery_%2D_overview.pdf
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Potential and limitations of plant virus epidemiology: lessons from the Potato virus Y pathosystem Organic Eprints
Döring, Thomas F..
Abstract Plant virus epidemiology provides powerful tools to investigate key factors that contribute to virus epidemics in agricultural crops. When successful, epidemiological approaches help to guide decisions regarding plant protection strategies. A recent example is epidemiological research on Potato virus Y (PVY) in Finnish seed potato production; this study led to the dentification of the main PVY vector species and helped to determine the timing of virus transmission. However, pathosystems rarely allow research to produce such clear-cut results. In fact, the notorious complexity of plant virus pathosystems, with multiple interactions between virus, vector, plant and environment, makes them often impenetrable even for advanced epidemiological models....
Tipo: Journal paper Palavras-chave: Crop husbandry Crop health; Quality; Protection.
Ano: 2011 URL: http://orgprints.org/19870/1/Article.pdf
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Pest and disease management in organic farming: implications and inspirations for plant breeding Organic Eprints
Döring, Thomas F.; Pautasso, Marco; Finckh, Maria R.; Wolfe, Martin.
The co-evolution of plants with their pests and diseases is a major driving force in evolution in nature. As a consequence, many pests and pathogens have multiple functions involved in survival on host populations. As a result of this continuous co-evolution, plant pests and pathogens have been selected for high reproduction rates, because of the low probability of an individual being able to find or infect a compatible host plant. For their part, host plants in natural ecosystems are often interspersed among other plant species and show wide and changing variation among individuals for genes affecting specific or non-specific resistance to each of the many pathogens that may attack them. Throughout the plant world there are dynamic and unstable equilibria...
Tipo: Book chapter Palavras-chave: Breeding; Genetics and propagation Crop health; Quality; Protection.
Ano: 2012 URL: http://orgprints.org/19803/1/Doering%20chapter%2003.pdf
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Impacts of climate change on plant diseases – opinions and trends Organic Eprints
Pautasso, Marco; Döring, Thomas F.; Garbelotto, M; Pellis, L; Jeger, MJ.
There has been a remarkable scientific output on the topic of how climate change is likely to affect plant diseases in the coming decades. This review addresses the need for review of this burgeoning literature by summarizing opinions of previous reviews and trends in recent studies on the impacts of climate change on plant health. Sudden Oak Death is used as an introductory case study: Californian forests could become even more susceptible to this emerging plant disease, if spring precipitations will be accompanied by warmer temperatures, although climate shifts may also affect the current synchronicity between host cambium activity and pathogen colonization rate. A summary of observed and predicted climate changes, as well as of direct effects of climate...
Tipo: Journal paper Palavras-chave: Crop health; Quality; Protection.
Ano: 2012 URL: http://orgprints.org/21902/1/2012.Pautasso%20et%20al.EJPP.pdf
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Straw mulch in organically grown potatoes - evaluation and optimisation for virus vector control Organic Eprints
Döring, Thomas F..
1. In order to evaluate effects of straw mulch applied at 2.5 – 5 t ha-1 in organically grown potatoes (Solanum tuberosum L.), 21 field experiments were conducted over five years at two locations Northern Hessen and Southern Niedersachsen, Germany). The experimental sites were characterised by temperate climate conditions (635 – 709 mm precipitation year-1; 8.1°C mean air temperature) and loamy silt soils. The main focus of the study was on aphids and the aphidtransmitted Potato virus Y (PVY). This disease is a main problem in seed potato production. In addition to virus and vectors, associated agronomic effects of straw mulch were studied. 2. Straw mulch significantly reduced the incidence of PVY. It was most effective as a protectant for young plants...
Tipo: Thesis Palavras-chave: Soil Crop health; Quality; Protection.
Ano: 2004 URL: http://orgprints.org/19831/1/2004.Doring.Dissertation.pdf
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OSCAR – a new European project on cover crops Organic Eprints
Baresel, Jörg Peter; Döring, Thomas F.; Finckh, Maria R..
There is widespread concern over the damage caused by modern agriculture to soil structure and the ecosystem services provided. One approach to overcome this problem is conservation agriculture (CA) which aims to maintain soil structure by minimising soil disturbance, maximising soil cover and using crop rotation. However, despite recent legislation supporting minimum tillage and direct seeding, together with the efforts of pioneer farmers, CA is still practised on less than 4% of the agricultural land in Europe. This underlines the need for major improvements in the approach together with consolidation of, and access to, information about alternative cropping methods and their biological and economic value and performance. A new European FP7-funded...
Tipo: Conference paper, poster, etc. Palavras-chave: Crop husbandry; Soil tillage; Weed management.
Ano: 2012 URL: http://orgprints.org/21903/1/Baresel-2012-EurAgronCongress-Helsinki-abstract.pdf
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Strohmulch und Vorkeimen zur Minderung des Virusrisikos in ökologisch produzierten Pflanzkartoffeln Organic Eprints
Döring, Thomas F.; Saucke, Helmut.
Das von Blattläusen übertragene Y-Virus der Kartoffel (PVY) stellt eines der Hauptprobleme bei der vegetativen Pflanzkartoffelvermehrung dar, da bei einem Anteil virusinfizierter Knollen über 8% die amtliche Anerkennung als Pflanzgut ausgeschlossen ist. Diesem Risiko steht bei Anerkennung jedoch ein hoher wirtschaftlicher Erlös gegenüber. Das für ökologische Produzenten ab 2004 geltende Verbot der Verwendung von konventionellem Pflanzgut läßt einen steigenden Bedarf an Ökopflanzgut erwarten. Schon jetzt bestehen jedoch v.a. nach blattlausreichen Jahren Engpässe in der Verfügbarkeit von zertifiziertem ökologisch erzeugten Pflanzmaterial. Ziel war daher die Evaluation und Optimierung verschiedener kulturtechnischer Verfahren zur Minderung des Virusrisikos im...
Tipo: Conference paper, poster, etc. Palavras-chave: Root crops Crop health; Quality; Protection.
Ano: 2003 URL: http://orgprints.org/1104/1/1104%2Ddoering%2D2003%2Dstrohmulch%2Dgegen%2Dvirusrisiko%2Dwien.pdf
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Aspekte der Strohmulchanwendung im ökologischen Kartoffelanbau – I.Wirkung auf Mikroklima, Phytophthora infestans und Rhizoctonia solani Organic Eprints
Döring, Thomas F.; Heimbach, Udo; Thieme, Thomas; Finckh, Maria R.; Saucke, Helmut.
Die Anwendung von Strohmulch als eine mögliche Strategie zur Reduzierung von Bodenerosion, Virusinfektionen und Nachernte-Stickstoffverlusten in Kartoffeln wurde hinsichtlich der Effekte auf die Krautfäule (Phytophthora infestans [MONT.] DE BARY) und auf die Pockenkrankheit (Rhizoctonia solani KÜHN) in ökologisch geführten Feldexperimenten über drei Jahre an vier Standorten in Deutschland untersucht. Der Krautfäulebefall wurde in 15 Versuchen als Prozent befallener Blattfläche oder Prozent der Blätter mit Läsionen bonitiert. Rhizoctonia-Pocken auf den geernteten Knollen wurden bei 100 bis 220 Knollen pro Parzelle in 18 Feldversuchen bonitiert. Zusätzlich wurde in einem Feldversuch der Einfluss von Strohmulch auf die Lufttemperatur und die relative...
Tipo: Journal paper Palavras-chave: Crop health; Quality; Protection Root crops.
Ano: 2006 URL: http://orgprints.org/19802/1/2006%2DDoring_et_al%2DNBDP%2DI.pdf
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Against the grain Organic Eprints
Döring, Thomas F.; Crowley, Oliver; Wolfe, Martin.
An Organic Research Centre project is examining how diversity-based tools can assist in the on-farm improvement of organic wheat. Successful organic crop production requires varieties that are resistant to diseases, competitive against weeds, and effective at scavenging nutrients. Yet conventional plant breeding has largely neglected organic systems by breeding varieties exclusively for high input conditions. As a consequence, organic producers currently do not have enough choice of plant varieties for organic conditions. One way to expand the choice is to create plant diversity anew and subject it to natural selection on organic farms. After several generations the dominating plants would be better suited to organic systems. This idea is being tested...
Tipo: Newspaper or magazine article Palavras-chave: Breeding; Genetics and propagation.
Ano: 2011 URL: http://orgprints.org/19777/1/2011.Doring_et_al.OrgFarm.pdf
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Developing modern multifunctional agroforestry systems for sustainable intensification Organic Eprints
Smith, Jo; Pearce, Bruce; Döring, Thomas F.; Wolfe, M S.
Agroforestry is a land-use system that integrates trees and shrubs with crops and/or livestock production. It has been identified by the International Assessment of Agricultural Knowledge, Science and Technology for Development (IAASTD, 2008) as a ‘win-win’ approach that balances the production of commodities (food, feed, fuel, fibre, etc.) with non-commodity outputs such as environmental protection and cultural and landscape amenities. This paper will review the potential of agroforestry as part of a multifunctional working landscape in temperate regions, and will consider management and policy implications of widespread adoption of this form of land-use.
Tipo: Conference paper, poster, etc. Palavras-chave: Farming Systems.
Ano: 2012 URL: http://orgprints.org/21905/1/2012.Smith%20SACSEPA.pdf
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Effects of reduced tillage in organic farming on yield, weeds and soil carbon: meta-analysis results from the TILMAN-ORG project Organic Eprints
Cooper, J.M.; Baranski, M.; Nobel de Lange, M.; BARBERI, P.; Fliessbach, A.; Peigne, J.; Berner, A.; Brock, C.; Casagrande, M.; Crowley, O.; Davide, C.; De Vliegher, Alex; Döring, Thomas F.; Entz, M.; Grosse, M.; Haase, T.; Halde, C.; Hammerl, V.; Huiting, H.; Leithold, G.; Messmer, M.; Schloter, M.; Sukkel, M.; van der Heijden, M.; Willekens, K.; Wittwer, R.; Mäder, Paul.
As part of the TILMAN-ORG CORE ORGANIC II project, data on the use of reduced tillage in organic farming systems from a range of field trials and the published literature was compiled. A meta-analysis was conducted to determine the impacts of reduced tillage on crop yields, weed pressure and soil organic C stocks. This paper highlights some of the key findings from this study.
Tipo: Conference paper, poster, etc. Palavras-chave: Soil tillage; Soil; Weed management.
Ano: 2014 URL: http://orgprints.org/23970/1/23970%20Copper_MM.pdf
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