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| Registros recuperados: 26 | |
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| Hofmeijer, Merel A.J.; Melander, Bo; Krawczyk, Roman; Verwijst, Theo; Zarina, Livija; Salonen, Jukka; Gerowitt, Bärbel. |
| They create a great source of agro biodiversity, generating habitats and food sources for other organisms; yet weeds have always posed the greatest challenge in Organic Agriculture from the perspective of production. Because of the specific agricultural management of this farming system, several groups of weed species have naturally adjusted. These can be highly competitive to the crop, acquire high inputs to remove and/or spread rapidly. In this leaflet we will describe the most challenging weed species in organic spring sown cereals in the geographical area of the Baltic sea, based on existing literature and information provided by extension services. We will show and discuss their distribution from country to country and propose a classification... |
| Tipo: Report |
Palavras-chave: Education; Extension and communication Weed management. |
| Ano: 2017 |
URL: http://orgprints.org/32600/7/Geographical%20distribution%20of%20challenging%20weed%20species%20-%20References%20-%20Hofmeijer.pdf |
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| Gerowitt, Bärbel; Hofmeijer, Merel A.J.; Melander, Bo; Krawczyk, Roman; Salonen, Jukka; Verwijst, Theo; Zarina, Livija. |
| The research-network PRODIVA focuses on a better utilization of crop diversification for weed management in North European arable cropping systems. The goal is to maintain diverse arable weed vegetation that is manageable in the long-term and could fulfil other necessary system-functions including support of beneficial organisms. The partners in PRODIVA will synthesize knowledge from terminated and running research projects and set-up selected new experiments on cover crops and variety resp. crop mixtures. Moreover, we will interact with partners from farming practice and extension services in organic agriculture. Regional fields will be surveyed for weeds to safeguard the relevance of the experimental research. Current cropping practices and their... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Cereals; Pulses and oilseeds Crop health; Quality; Protection Weed management. |
| Ano: 2015 |
URL: http://orgprints.org/29919/1/Poster%20Crop%20diversification%20and%20weeds%20Montpellier%202015.pdf |
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| Gerowitt, Bärbel; Hofmeijer, Merel A.J.. |
| Diese Studie ist Teil des Core Organic Plus Projekts PRODIVA - eine Zusammenarbeit von nordeuropäischen Unkrautforschungsgruppen im Ostseeraum. Übergeordnetes Ziel ist es, eine diverse und handhabbare Unkrautflora im Ökologischen Landbau zu sichern. Bundesweit hat Mecklenburg Vorpommern einen sehr hohen Anteil an Ökologischer Landwirtschaft. Nach wie vor sind Unkräuter eine Herausforderung in diesen Agrarsystemen. Agrobiodiversität zu fördern, hat in Deutschland einen zunehmenden Stellenwert. Vor diesem Hintergrund sollten Unkräuter einerseits in langfristig handhabbaren Größenordnungen bleiben, andererseits aber auch eine artenreiche Flora bilden. Wir haben untersucht, ob diese beiden Aspekte durch ein vielseitiges Management der Kulturpflanzen... |
| Tipo: Report |
Palavras-chave: Biodiversity and ecosystem services; Weed management. |
| Ano: 2018 |
URL: http://orgprints.org/34326/1/34326-14OE004-uni-rostock-gerowitt-2018-provida.pdf |
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| Hofmeijer, Merel A.J.; Melander, Bo; Salonen, Jukka; Verwijst, Theo; Zarina, Livija; Gerowitt, Bärbel. |
| Weeds remain to be the main challenge within this agricultural system, especially perennials in the north European realm. Because of increased interest in agrobiodiversity functioning, weeds should be kept within manageable limits, while on the other side encourage a specie rich weed flora. One of the PRODIVA project objectives is to investigate to which extent these two aspects can be addressed through the use of diversified crop management. In order to research this objective, weed and management data were obtained from organic farms in the baltic region over the course of two years (2015-2016) in spring sown cereal crops. The impact of the local environment and management factors on the occurring weed communities was studied in multivariate analysis... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: "Organics" in general; Crop combinations and interactions; Weed management. |
| Ano: 2018 |
URL: http://orgprints.org/33428/1/Presentation_ewrs_MHofmeijer.pdf |
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| Melander, Bo; Gerowitt, Bärbel; Salonen, Jukka; Verwijst, Theo; Lundkvist, Anneli; Zarina, Livija; Hofmeijer, Merel A.J.; Sylwia, Kaczmarek; Roman, Krawczyk. |
| Diversification of crop sequences (WP 1): Perennial weed species can be managed when cover crops / green manure crops are included in the crop sequence but interventions must be species dependent, e.g. Elytrigia repens can be promoted by green manures because they prevent post-harvest cultivations. Cirsium arvense and Sonchus arvensis are two perennials that can be controlled by full-season grass-clover subjected to regular mowing for green manuring purposes and this measure has immediate application. Cover crops for diversification (WP 1): Fast growing cover crops producing copious biomasses are generally useful for the suppression of weeds but need to be abandoned when severe infestations of Elytrigia repens require post-harvest cultivations for... |
| Tipo: Report |
Palavras-chave: Weed management. |
| Ano: 2018 |
URL: http://orgprints.org/35024/1/COPlus_2018%20PRODIVA_final_report_Organic%20Eprints.pdf |
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| Lederer, Henrike M.; Hofmeijer, Merel A.J.; Gerowitt, Bärbel. |
| Ackerunkräuter sind in der praktischen Landwirtschaft immer noch ein wichtiges Thema. Besonderes im ökologischen Landbau gibt es weiterhin Forschungsbedarf. Im Rahmen der vorliegenden Arbeit wurde daher die Ackerunkrautvegetation von neun ökologisch bewirtschafteten Landwirtschaftsbetrieben in Mecklenburg-Vorpommern näher untersucht. Dafür wurde die Unkrautvegetation von 17 Wintergetreideflächen im Juni und Juli 2016 bonitiert. Es wurden auf jeder Ackerfläche drei Untersuchungslinien angelegt, jeweils mit einer Gesamtoberfläche von 100 Quadratmetern pro Linie. Dabei wurden die vorgefundenen Unkrautarten dokumentiert und die Unkrautdichte der einzelnen Arten bestimmt. Für die weitere Datenanalyse wurde die Alpha-Diversität und der Shannon-Wieder Index der... |
| Tipo: Thesis |
Palavras-chave: "Organics" in general Crop health; Quality; Protection Weed management. |
| Ano: 2016 |
URL: http://orgprints.org/31455/1/Bachelorarbeit_Henrike_Lederer.pdf |
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| Hofmeijer, Merel A.J.; Gerowitt, Bärbel; Salonen, Jukka; Verwijst, Theo; Zarina, Livija; Melander, Bo. |
| This study is a component of the CORE Organic Plus PRODIVA project, a collaboration between international weed research institutions, which aims to improved utilization of crop diversification for weed management in northern European organic arable cropping systems. The overall goal is to maintain a diversified and manageable weed flora that can support beneficial organisms. The objective of this specific research conducted by the Group Crop Health of the University Rostock is: to identify practical weed challenges, to investigate the role of crop diversification management for weed management in the field and to cluster weed species into practical groups. In order to reach this objective a diversity of methods are proposed. Data collection takes place on... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Cereals; Pulses and oilseeds Crop health; Quality; Protection Weed management. |
| Ano: 2016 |
URL: http://orgprints.org/29917/1/Hofmeijer%20and%20Gerowitt%20et%20al%202016.pdf |
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| Hofmeijer, Merel A.J.; Melander, Bo; Krawczyk, Roman; Salonen, Jukka; Verwijst, Theo; Zarina, Livija; Gerowitt, Bärbel. |
| Weeds are a perpetual challenge in Organic agriculture. However, they serve multiple ecosystem services and a low competitive weed cover can be tolerated. Adding to this, is the fact that only a few species prove problematic for both the crop and the farmer. The international PRODIVA project researches the effect of crop diversity strategies on the diversity of weed communities, hypothesizing that by increasing the weed diversity, the development of problematic weeds will mitigated. A preparatory study was conducted to list the most problematic weed species in spring sown cereals in the countries involved with PRODIVA. For this a literature review was conducted in all participating countries, collecting local sources including grey literature. This was... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: "Organics" in general Cereals; Pulses and oilseeds Weed management. |
| Ano: 2017 |
URL: http://orgprints.org/31559/1/170308%20Poster%20Freising%20Hofmeijer.pdf |
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| Hofmeijer, Merel A.J.. |
| They create a great source of agro biodiversity, generating habitats and food sources for other organisms; yet weeds have always posed the greatest challenge in Organic Agriculture from the perspective of production. Because of the specific agricultural management of this farming system, several groups of weed species have naturally adjusted. These can be highly competitive to the crop, acquire high inputs to remove and/or spread rapidly. In this leaflet we will describe the most challenging weed species in organic spring sown cereals in the geographical area of the Baltic sea, based on existing literature and information provided by extension services. We will show and discuss their distribution from country to country and propose a classification... |
| Tipo: Report |
Palavras-chave: Education; Extension and communication Weed management. |
| Ano: 2016 |
URL: http://orgprints.org/30635/1/Geographical%20distribution%20of%20challenging%20weed%20species%20-%20Hofmeijer.pdf |
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| Hofmeijer, Merel A.J.; Melander, Bo; Krawczyk, Roman; Salonen, Jukka; Verwijst, Theo; Zarina, Livija; Gerowitt, Bärbel. |
| Implications - Specific annual and perennial weeds are a perpetual challenge in the process of tuning up sustainable Organic production. To utilize the perspective of agro-biodiversity would both improve crop yields as well as conserve the ecosystem services of this agriculture system. The successful use of crop diversity strategies provides an additional tool in the toolbox of the farmers, giving them a) an overview of problematic weed species and b) the opportunity to plan their crop diversity based weed management over the course of years in the future. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Cereals; Pulses and oilseeds Education; Extension and communication Weed management. |
| Ano: 2017 |
URL: http://orgprints.org/31415/7/Hofmeijer%20NJF%20Organic%20Conference%202017_fv.pdf |
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| Hofmeijer, Merel A.J.; Melander, Bo; Krawczyk, Roman; Salonen, Jukka; Verwijst, Theo; Zarina, L.; Gerowitt, Bärbel. |
| Weeds are a perpetual challenge in Organic agriculture. However, they serve multiple ecosystem services and a low competitive weed cover can be tolerated. Adding to this, is the fact that only a few species prove problematic for both the crop and the farmer. The international PRODIVA project researches the effect of crop diversity strategies on the diversity of weed communities, hypothesizing that by increasing the weed diversity, the development of problematic weeds will mitigated. A preparatory study was conducted to list the most problematic weed species in spring sown cereals in the countries involved with PRODIVA. For this a literature review was conducted in all participating countries, collecting local sources including grey literature. This was... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection Weed management. |
| Ano: 2017 |
URL: http://orgprints.org/31583/1/Problematic%20weed%20species%20in%20organic%20arable%20agriculture.pdf |
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| Gerowitt, Bärbel; Hofmeijer, Merel A.J.; Melander, Bo; Sonderskov, Mette; Krawczyk, Roman; Kaczmarek, Sylvia; Salonen, Jukka; Verwijst, Theo. |
| To organize and manage the dissemination process has become a general task within international projects. Within the project PRODIVA (Crop diversification and weed management) we organized these chains as returning cascades between practice (advisors and farmers) and scientists in the Baltic area. A network of farmers was created in each participating region. We collected and used practical knowledge about dominating weed species in Organic spring cereal production. This data can be compared with monitored weeds in the regions. Together with the monitored weeds management data was collected on-farm. Relating this data to the results of experimentally investigated crop diversification tools, being subsidiary crops in the rotation, crop mixtures and variety... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: "Organics" in general Education; Extension and communication Weed management. |
| Ano: 2018 |
URL: http://orgprints.org/33447/1/PRODIVA_WP5_Presentation_BGerowitt.pdf |
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| Registros recuperados: 26 | |
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