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Can weed management in vegetable systems be improved by cover crop species mixture? Step 1: Screening of cover crop species and varieties Organic Eprints
Ranaldo, Marzia; Costanzo, Ambrogio; Carlesi, Stefano; Barberi, Paolo.
Cover crops are an essential strategy in organic and low input arable and vegetable production, especially regarding weed reduction and N use efficiency, but their establishment and development can be unstable. A viable option to enhance and stabilise the agroecosystem services provided by cover crops is to sow mixtures of species having different functionality. Such mixtures have been reported to increase productivity, stability, resilience and resource use efficiency of cover crop communities. Therefore, our hypothesis is that weed reduction can also be improved by cover crops mixtures. However, it is not yet clear how diversity drives these mechanisms in arable and vegetable systems in Mediterranean climates.
Tipo: Conference paper, poster, etc. Palavras-chave: Crop combinations and interactions; Farming Systems; Weed management; Farm nutrient management.
Ano: 2015 URL: http://orgprints.org/31602/1/Ranaldo%20et%20al.%202015.pdf
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Can weed management in vegetable systems be improved by cover crop species mixtures? Step 2: field implementation Organic Eprints
Ranaldo, Marzia; Carlesi, Stefano; Costanzo, Ambrogio; Bàrberi, Paolo.
Cover crops are a fundamental tool for weed control, especially in organic and low input farming. Species with different functional traits can be combined in mixtures to enhance weed suppression. Our aim was to test the relative importance of functional diversity and functional composition (i.e. complementarity) in improving and stabilising the agroecosystem services expected from cover crops. Following a preliminary screening on cover crop functional traits (Step 1), we identified 8 species belonging to 4 functional groups: large seeded legumes, characterized by higher height (Pisum sativum L., Vicia sativa L.), small seeded legumes, able to cover quickly the soil (Trifolium incarnatum L., T. squarrosum L.), highly competitive grasses (Hordeum vulgare...
Tipo: Conference paper, poster, etc. Palavras-chave: Production systems; Farming Systems; Soil tillage; Vegetables; Weed management.
Ano: 2016 URL: http://orgprints.org/31546/1/Ranaldo%20et%20al%20%282016%29_IWSS%20Prague.pdf
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Long term effects of cover crops on weeds in Mediterranean low input arable management systems Organic Eprints
Carlesi, Stefano; Antichi, Daniele; Bigongiali, Federica; Mazzoncini, Marco; Barberi, Paolo.
The introduction of cover crops (CC) in crop rotations is a key tool to control weed and ameliorate soil conditions in low input arable systems. In 1992 a long term experiment (LTE) was set up at Centre for Agri-environmental Research “E. Avanzi (CIRAA), University of Pisa to determine the combined effect of tillage intensity, nitrogen fertilization levels and CC types on soil quality, crop yield and weed communities. The LTE is based on 4-year crop rotation (maize, durum wheat, sunflower, durum wheat) with cover crops grown twice, in between wheat and summer crops. Two tillage systems were compared: i) a conventional system (CS), with annual ploughing (30 cm depth); ii) a low input system (LIS), with chiseling (30 cm depth) for summer crops and no...
Tipo: Conference paper, poster, etc. Palavras-chave: Crop combinations and interactions; Soil tillage; Biodiversity and ecosystem services; Weed management; Farm nutrient management.
Ano: 2015 URL: http://orgprints.org/29700/1/carlesi%20et%20a.2015.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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Weeds as soil bioindicators: How to sample and use data Organic Eprints
Carlesi, Stefano; Barberi, Paolo.
This technical note shows how weed species can be used as indicators of soil conditions that are either linked to soil characteristics (such as soil pH or texture) or to soil management (such as water logging, lack or excess of nutrients, compaction). It should be stressed that (i) this kind of analysis does not always provide consistent results, because the relationship between weed species and soil conditions is not always clear cut and that (ii) the suggested sampling methodology requires some basic botanical skills for weed identification.
Tipo: Report Palavras-chave: Soil quality; Weed management.
Ano: 2017 URL: http://orgprints.org/31696/1/Carlesi-Barberi-2017-bioindicators-TechnicalNote-FertilCrop.pdf
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Can weed management in vegetable systems be improved by cover crop species mixture? Step 1: Screening of cover crop species and varieties Organic Eprints
Ranaldo, Marzia; Costanzo, Ambrogio; Carlesi, Stefano; Barberi, Paolo.
Cover crops are an essential strategy in organic and low input arable and vegetable production, especially regarding weed reduction and N use efficiency, but their establishment and development can be unstable. A viable option to enhance and stabilise the agroecosystem services provided by cover crops is to sow mixtures of species having different functionality. Such mixtures have been reported to increase productivity, stability, resilience and resource use efficiency of cover crop communities. Therefore, our hypothesis is that weed reduction can also be improved by cover crops mixtures. However, it is not yet clear how diversity drives these mechanisms in arable and vegetable systems in Mediterranean climates.
Tipo: Conference paper, poster, etc. Palavras-chave: Crop combinations and interactions; Farming Systems; Weed management; Farm nutrient management.
Ano: 2015 URL: http://orgprints.org/29701/1/Ranaldo%20et%20al.%202015.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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Pleveli kot bioindikatorji: vzorčenje in uporaba podatkov Organic Eprints
Carlesi, Stefano; Barberi, Paolo.
Članek opisuje uporabo plevelnih vrst kot indikator-jev stanja tal, ki je povezano ali z lastnostmi tal (kot sta pH ali tekstura tal) ali z gospodarjenjem s tlemi (zastajanje vode v tleh, premalo ali preveč hranil, zbitost). Poudariti je treba, da: (i) Tovrstna analiza ne zagotavlja vedno doslednih rezultatov. Odnos med različnimi plevelnimi vrstami in stanjem tal namreč ni vedno jasno začrtan. (ii) Za izvajanje te metode vzorčenja je potrebno nekaj osnovnega botaničnega znanja za identifikacijo plevelov.
Tipo: Report Palavras-chave: Soil quality; Weed management.
Ano: 2018 URL: http://orgprints.org/32825/7/Weeds%20as%20soil%20bioindicators_Slovenian_ISD.pdf
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Las malas hierbas como bioindicadores del suelo: Cómo muestrear y usar los datos Organic Eprints
Carlesi, Stefano; Barberi, Paolo.
Esta ficha técnica describe cómo las especies de malas hierbas pueden ser utilizadas como bioindicadores de las condiciones del suelo, relacionándolas con las características del suelo (como pH o textura)y al manejo del suelo (como el uso del agua, falta o exceso de nutrientes o compactación. Debe destacarse que (i) este tipo de análisis no siempre proporciona resultados consistentes, porque la relación entre las malas hierbas y las condiciones del suelo no siempre es clara y que (ii) la metodología de muestreo sugerida requiere conocimientos botánicos básicos para la identificación de especies. English version available at http://orgprints.org/31696/
Tipo: Report Palavras-chave: Soil quality; Weed management.
Ano: 2017 URL: http://orgprints.org/32467/1/carlesi-barberi-2017-weed-indicators-spanish.pdf
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Designing cover crop mixtures to enhance potential weed suppression in organic no-till vegetable systems Organic Eprints
Ranaldo, Marzia; Carlesi, Stefano; Costanzo, Ambrogio; Bàrberi, Paolo.
Cover crops play a key role in weed management strategy in no-till organic and low input vegetable systems. The ability of cover crops to reduce weed pressure can be linked to the amount of biomass produced at the time of cover crop devitalisation. Cover crop mixtures, in particular functional diversity in cover crop mixtures, can be managed to improve biomass production and weed suppressive ability of cover crops. We tested eight cover crop species pure stands and designed nine cover crop mixtures at increasing levels of functional diversity. The aim of this study was to highlight the effect of cover crops' functional diversity in controlling weeds before aubergine (Solanum melongena L.) transplanting. We showed that the functional composition (i.e. the...
Tipo: Conference paper, poster, etc. Palavras-chave: Crop combinations and interactions; Composting and manuring; Weed management.
Ano: 2016 URL: http://orgprints.org/32798/1/esa14_abstract_Ranaldo.pdf
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Hairy vetch cover crop affects weed diversity and composition in no-till sunflower Organic Eprints
Carlesi, Stefano; Antichi, Daniele; Sbrana, Massimo; Barberi, Paolo.
Vicia villosa Roth, or hairy vetch, is one of the most productive cover crops (CC) in Mediterranean dry areas, with an interesting potential as dead mulch in no-tillage cropping systems. In low-input cropping systems, mechanical termination of hairy vetch could replace a glyphosate application to control weeds. Mechanical termination (e.g. with a roller crimper) of hairy vetch is ineffective until the late growing stages of vetch, leading to delayed sowing and yield reduction in the following crop. To find the best compromise in timing between effective termination of vetch and reasonable yield of no-till sunflower, an on-farm experiment was carried out in Pisa (Italy) in 2012/13 and 2013/14 to compare three termination techniques (roller crimper with no,...
Tipo: Conference paper, poster, etc. Palavras-chave: Crop combinations and interactions; Soil tillage; Biodiversity and ecosystem services; Weed management.
Ano: 2014 URL: http://orgprints.org/29702/1/Carlesi%20et%20al.%202014.pdf
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