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A FUNCTIONAL AGROBIODIVERSITY APPROACH TO IMPROVE ORGANIC WHEAT PRODUCTION Organic Eprints
Costanzo, Ambrogio; Bàrberi, Paolo.
Crop agrobiodiversity is an asset to improve organic and low-input wheat production, but a clear framework is necessary to translate scientific evidences into practice. Here we present results from a field experiment on common wheat, focusing of cultivar identity, genetic heterogeneity and on the inclusion of a legume living mulch. This experiment provided us insights on how to improve yield, yield stability and weed reduction through adequate cultivar choice and diversification of the crop stand.
Tipo: Conference paper, poster, etc. Palavras-chave: Crop combinations and interactions Cereals; Pulses and oilseeds Breeding; Genetics and propagation Weed management.
Ano: 2014 URL: http://orgprints.org/23988/1/23988%20Organic%20World%20Congress%202014_MM.pdf
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A guide to participatory experiments with underutilised genetic resources Organic Eprints
Costanzo, Ambrogio; Seroplay, Ester; Rey, Frederic.
Diversifood has undertaken a series of parallel experiments, all testing the same underlying hypothesis expressed in the “working definition” that reintroducing genetic resources with a status of underutilisation can trigger benefits in provisioning agroecosystem services and supporting local, high-quality value chains, in the overall framework of agroecological systems. This booklets considers a diversity of practices and incorporates the experience of the trials and the lessons learned on how to plan and conduct such trials, including practical consideration and tips to facilitate their execution out of the controlled conditions of experimental stations while still obtaining detailed and relevant information. It includes sections on sourcing seed,...
Tipo: Report Palavras-chave: Systems research and participatory research Breeding; Genetics and propagation Policy environments and social economy.
Ano: 2019 URL: http://orgprints.org/35259/1/B%232_guide_to_participatory_experiments_BAT_WEB.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/31602/1/Ranaldo%20et%20al.%202015.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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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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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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Functional agrobiodiversity and agroecosystem services in sustainable wheat production. A review Organic Eprints
Costanzo, Ambrogio; Bàrberi, Paolo.
Agrobiodiversity can improve the sustainability of cropping systems in a context of low external inputs and unpredictable climate change. Agrobiodiversity strategies to grow wheat are breeding ad hoc cultivars for organic and low-input systems, wheat–legume intercrops and living mulches, cultivar mixtures, and the use of genetically heterogeneous populations. However, applying those strategies can fail due the lack of a well-focused framework. Therefore, we need a better integration between breeding and management and a clear focus on crop traits related to key agroecosystem services. Here, we review the use of agrobiodiversity in wheat production, focusing on breeding and management. We discuss five agroecosystem services: (1) weed reduction, (2) nitrogen...
Tipo: Journal paper Palavras-chave: Cereals; Pulses and oilseeds Biodiversity and ecosystem services.
Ano: 2013 URL: http://orgprints.org/24146/1/Costanzo-and-Barberi-2013-AgronSustainDev-online.pdf
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