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Crop yield, weed infestation and soil fertility responses to contrasted ploughing intensity and manure additions in a Mediterranean organic crop rotation Organic Eprints
Baldivieso-Freitas, P.; Blanco-Moreno, José Manuel; Armengot, Laura; Chamorro, Lourdes; Romanyà, Joan; Sans, F. Xavier.
Conservation agriculture and organic farming are two alternative strategies that aim to improve soil quality and fertility in arable cropping systems through the deployment of different practices, that are rarely combined. While conservation agriculture practices include reducing tillage intensity and maintaining soil cover all year round to prevent soil erosion, organic farming focuses on nutrient recycling, using farmyard manure and green manure to enhance soil quality. However, these practices are not free from side-effects, such as increasing weed infestation or limited nutrient availability. Therefore it is necessary to explore the sustainability of their combination under local environmental constraints. The objectives of this study were to evaluate...
Tipo: Journal paper Palavras-chave: Soil quality Crop combinations and interactions Soil biology Cereals; Pulses and oilseeds Composting and manuring Soil tillage Weed management.
Ano: 2018 URL: http://orgprints.org/32378/1/STILL-17-515R3.pdf
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DIVERSITY OF CONSERVATION AGRICULTURE PRACTICES AMONG EUROPEAN ORGANIC FARMERS “TILMAN-ORG SESSION” Organic Eprints
Peigne, Joséphine; Casagrande, Marion; David, Christophe; Sans, Francesc Xavier; Blanco-Moreno, José Manuel; Cooper, Julia; Gascoyne, Kate; Antichi, Daniele; Bàrberi, Paolo; Bigongiali, Federica; Surböck, Andreas; Kranzler, Andreas; Beeckman, Annelies; Willekens, Koen; Luik, Anne; Matt, Darja; Grosse, Meike; Heß, Jürgen; Clerc, Maurice; Dierauer, Hansueli; Mäder, Paul.
The interest of organic farmers for adopting conservation agriculture practices is currently growing. But, there are few technical and scientific references available for organic farmers when they start applying conservation agriculture practices. The main objectives of this study are (1) to explore the diversity of crop management practices using conservation agriculture methods among European farmers, and (2) to identify main farmers’ strategies. We carried out a survey of 159 farmers located in 10 European countries with a questionnaire with closed-ended questions. Data were analysis with a multi factor analysis followed by clustering to identify groups of farmers that share the same type of spring and winter crop managements. Organic farmers in Europe,...
Tipo: Conference paper, poster, etc. Palavras-chave: Surveys and statistics; Crop combinations and interactions; Soil tillage; Weed management.
Ano: 2014 URL: http://orgprints.org/23910/1/23910_revised%20version_MM.pdf
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Efecto del laboreo mínimo (chisel), la fertilización y los abonos verdes sobre la flora arvense y los rendimientos en una rotación de cultivos de cereales y leguminosas ecológicos Organic Eprints
Chamorro, Lourdes; Baldivieso-Freitas, P.; Blanco-Moreno, José Manuel; Armengot, Laura; Sans, F. Xavier.
Effects of reduced tillage, fertilization and green manures on the weeds and crop yields in a cereal-legume crop rotation under organic farming. On 2011, we established a long-term experiment to evaluate the effects of reduced tillage (chisel vs mouldboard plough), fertilization with semicomposted manure and sowing of green manures before spring crops, on the crop yields and weed abundance in a 5-year rotation (spelt, chickpea, wheat, lentil and spelt). After five years, there was not noticeable increment in weed abundance or richness. Reduced tillage caused a significant increase of weeds compared with mouldboard plough, but it this increase did not cause significant yield loss in cereal crops compared with mouldboard plough. Green manures exerted a...
Tipo: Conference paper, poster, etc. Palavras-chave: Cereals; Pulses and oilseeds Soil tillage Buildings and machinery Crop health; Quality; Protection Weed management Farm nutrient management.
Ano: 2017 URL: http://orgprints.org/32379/1/Chamorro%20et%20al%20XVI_congreso_SEMH_2017_ACTAS.pdf
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EFFECT OF CONSERVATION PRACTICES ON FUNCTIONAL DIVERSITY AND ASSEMBLY OF WEED COMMUNITIES: A DATABASE OF FUNCTIONAL TRAITS Organic Eprints
Sans, F. Xavier; Armengot, Laura; Blanco-Moreno, José Manuel; Bocci, Gionata; Carlesi, Stefano; Barberi, Paolo.
The incorporation of conservation agriculture techniques (e.g. reduced tillage and green manures) in organic farming systems brings many benefits to the environment and reduces energy use (Holland, 2004). One of the main drawbacks of the use of reduced tillage is the potential increase in weed infestation and shifts in the weed community composition, sometimes to the benefit of more difficult-to-control species (Bàrberi, 2002; Peigné et al., 2007; Sans et al., 2011). However, weeds have an important role in maintaining farmland functional biodiversity (Bàrberi et al, 2010; Caballero et al., 2010), and this should be balanced with their potential negative impact on crop yield and quality. Within the frame of the European project “Reduced tillage and green...
Tipo: Conference paper, poster, etc. Palavras-chave: Biodiversity and ecosystem services; Weed management.
Ano: 2014 URL: http://orgprints.org/23834/1/23834_MM.pdf
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Effects of landscape agricultural intensification and management on weed species richness in the edges of dryland cereal fields. Organic Eprints
Romero, Albert; Chamorro, Lourdes; Blanco-Moreno, José Manuel; Armengot, Laura; Jose María, Laura; Sans, Francesc Xavier.
An extensive survey of weed vegetation was conducted in the crop edges of 180 organic and conventional dryland cereal fields in nine localities of NE Iberian Peninsula to assess the effect of landscape agricultural intensification and management on weed diversity. This preliminary results show that averaged weed species richness per edge (alpha-diversity) and floristic homogeneity among edges are higher in organic than conventional fields. Only in conventionally managed fields, elevated landscape intensification is associated to higher weed alpha-diversities and floristic homogeneity among crop edges. The expression of high-quality weed flora is higher in organic than in conventional crop edges but, conversely, it is only sensitive to landscape...
Tipo: Conference paper, poster, etc. Palavras-chave: Biodiversity and ecosystem services.
Ano: 2008 URL: http://orgprints.org/12302/1/Romero_12302_ed.doc
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Long-term feasibility of reduced tillage in organic farming Organic Eprints
Armengot, Laura; Berner, Alfred; Blanco-Moreno, José Manuel; Mäder, Paul; Sans, F.Xavier.
Agricultural practices, and mainly soil tillage, highly contribute to the emissions of greenhouse gases such as CO2 and N2O. Reducing the tillage improves the quality of the soil and may help mitigating the greenhouse emissions. In Europe, approximately 25 % of the arable land is managed under reduced tillage practices, including both notill and reduced tillage. However, they have been developed mainly in herbicidemanaged systems. The potential increase in weed infestation caused by the lack of soil inversion may threaten crop yields, and is one of the major drawbacks for the adoption of reduced tillage among organic farmers. We report the results from a field experiment comparing the reduced tillage with respect to the conventional tillage in the...
Tipo: Journal paper Palavras-chave: Soil tillage.
Ano: 2014 URL: http://orgprints.org/26861/1/E_Armengotetal_ASD_red_tillage_2014.pdf
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ORGANIC FARMERS IN EUROPE: MOTIVATIONS AND PROBLEMS FOR USING CONSERVATION AGRICULTURE PRACTICES. "TILMAN-ORG Session" Organic Eprints
Casagrande, Marion; Peigne, Joséphine; David, Christophe; Sans, Francesc Xavier; Blanco-Moreno, José Manuel; Cooper, Julia; Gascoyne, Kate; Antichi, Daniele; Bàrberi, Paolo; Bigongiali, Federica; Surböck, Andreas; Kranzler, Andreas; Beeckman, Annelies; Willekens, Koen; Luik, Anne; Peetsmann, Elen; Grosse, Meike; Heß, Jürgen; Clerc, Maurice; Dierauer, Hansueli; Mäder, Paul.
As conservation agriculture and organic farming are currently considered as environmentally friendly options for producing food, this study explores the motivations and problems of organic European farmers that apply at least two of the following techniques: (i) no-tillage, (ii) reduced tillage and/or (iii) green manures conservation practices. We carried out a survey about motivations and problems of 159 farmers located in 10 European countries with a questionnaire with closed-ended questions. Data were analysis with a principal component analysis followed by clustering to identify groups of farmers that share the same type of motivations and problems. The most important motivations are related to soil preservation concerns and problems are mainly linked...
Tipo: Conference paper, poster, etc. Palavras-chave: Surveys and statistics; Social aspects; Soil tillage; Weed management.
Ano: 2014 URL: http://orgprints.org/23939/1/23939_revised%20version_MM.pdf
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Organic farmers’ motivations and challenges for adopting conservation agriculture in Europe Organic Eprints
Casagrande, Marion; Peigne, Joséphine; Payet, Vincent; Mäder, Paul; Sans, F. Xavier; Blanco-Moreno, José Manuel; Antichi, Daniele; Barberi, Paolo; Beeckmann, Annelies; Bigongiali, Federica; Cooper, Julia; Dierauer, Hansueli; Gascoyne, Kate; Grosse, Meike; Heß, Jürgen; Kranzler, Andreas; Luik, Anne; Peetsmann, Elen; Surböck, Andreas; Willekens, Koen; David, Christophe.
Conservation agriculture and organic farming are considered as promising sustainable agricultural system for producing food, while minimizing environmental impacts. Despite an increasing number of experimental data on organic conservation practices and various studies dealing with the adoption of conservation agriculture by farmers, none of those studies have specifically addressed conservation agriculture adoption under organic conditions in Europe. We carried out a survey with 159 farmers located in 10 European countries. These farmers had applied at least two of the following conservation practices: (i) no-tillage, (ii) reduced tillage and (iii) green manures. Each farmer assessed socio-economic, agronomic and environmental motivations and problems for...
Tipo: Journal paper Palavras-chave: "Organics" in general; Soil tillage; Environmental aspects.
Ano: 2015 URL: http://orgprints.org/29478/1/casagrande-etal-2015-OrganicAgriculture-p1-15-OrgFarmersMotivations.pdf
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Phosphorus mobilization in low-P arable soils may involve soil organic C depletion Organic Eprints
Romanyà, Joan; Blanco-Moreno, José Manuel; Sans, F. Xavier.
Organic farming systems often show negative nutrient balances that may compromise the availability of phosphorus over the mid-term. Calcareous soils with low organic matter generally show low or very low phosphorus availability. Under these conditions, P retained in soil organo-mineral complexes -either in organic or inorganic forms-after its solubilization and -in the case of organic P compounds-subsequent mineralization may be a source of P to plants and soil organisms. By studying the changes in soil retained and soluble P pooloccurring during the growth of two legumes in two scenarios of contrasting P availability we aimed to describe the release of soil retained P, organic and inorganic, into the soluble pools and to relate it to changes in organic C...
Tipo: Journal paper Palavras-chave: Soil biology; Nutrient turnover; Crop husbandry.
Ano: 2017 URL: http://orgprints.org/32463/1/Romany%C3%A0_et_al_2017_Low.phosphorus.and.soil.organic.carbon.depletion.pdf
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REDUCED TILLAGE AND COVER CROPS IN ORGANIC ARABLE SYSTEMS PRESERVES WEED DIVERSITY WITHOUT JEOPARDISING CROP YIELD Organic Eprints
Barberi, Paolo; Aendekerk, Raymond; Antichi, Daniele; Armengot, Laura; Berner, Alfred; Bigongiali, Federica; Blanco-Moreno, José Manuel; Carlesi, Stefano; Celette, Florian; Chamorro, Lourdes; Crowley, Oliver; Döring, Thomas; Grosse, Meike; Haase, Thorsten; Hess, Jürgen; Huiting, Hilfred; José-Maria, Laura; Klaedtke , Stéphanie; Kranzler, Andreas; Luik, Anne; Peigne, Joséphine; Sukkel, Wijnand; Surböck, Andreas; Talgre, Liina; Sans, Francesc Xavier.
One of the objectives of the TILMAN-ORG Project is to improve weed management under conservation agriculture (reduced tillage and/or cover crops) in organic arable systems. The shift from ploughing to conservation agriculture should not only maintain crop yield but possibly improve weed community diversity. This paper summarises the results on (1) weed abundance, (2) weed diversity and (3) crop yield obtained in the first year of the project (2012) in 13 trials scattered across Europe.
Tipo: Conference paper, poster, etc. Palavras-chave: Soil quality; Crop combinations and interactions; Soil tillage; Biodiversity and ecosystem services; Weed management.
Ano: 2014 URL: http://orgprints.org/24158/1/24158_MM.pdf
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