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Registros recuperados: 45
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Activities of the NJF working group on Perennial Weeds - Comparison of seasonal sprouting readiness of three perennial weeds Organic Eprints
Salonen, Jukka; Brandsæter, Lars Olav; Melander, Bo; Fogelfors, Håkan.
The NJF working group on Perennial Weeds was launched in 2001 to facilitate communication and collaboration among the research scientists working with perennial weeds. The working group belongs to the Section of Plant Protection of the NJF (Nordic Association of Agricultural Scientist).
Tipo: Conference paper, poster, etc. Palavras-chave: Weed management.
Ano: 2008 URL: http://orgprints.org/17855/1/salonen.pdf
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Aluskasveista apua luomuviljan rikkakasvintorjuntaan? Organic Eprints
Salonen, Jukka; Känkänen, Hannu.
Rikkakasvien torjunta ja viljelykasvien riittävä ravinteiden saanti ovat luomutuotannon suuria haasteita. Esitelmässä tuotiin esille aluskasvien mahdollisuuksia rikkakasvien hallinnassa. Aluskasveista näyttää olevan enemmmän hyötyä ravinteiden tuottajana/sitojana kuin rikkakasvien kasvun hillitsijänä. Pitkäaikaiset vaikutukset halutaan vielä selvittää kenttäkoesarjan jatkuessa.
Tipo: Conference paper, poster, etc. Palavras-chave: Crop combinations and interactions; Weed management.
Ano: 2018 URL: http://orgprints.org/32533/1/MTP2018_Salonen_p27.pdf
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Aluskasveja rikkakasvien kiusaksi Organic Eprints
Salonen, Jukka.
Luomuviljelijöille suunnatun luentopäivän esitelmämateriaali, jossa esitellään aluskasvien mahdollisuuksia rikkakasvien hallnitaan viljanviljelyssä. Esitys perustuu Luonnonvarakeskuksen kenttäkokeisiin Jokioisilla v. 2015-2016.
Tipo: Teaching resource Palavras-chave: Crop combinations and interactions; Weed management.
Ano: 2017 URL: http://orgprints.org/31404/1/JukkaSalonen_Aluskasveja-rikkakasvien-kiusaksi.pdf
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Aluskasvien mahdollisuudet luomuviljan rikkakasveja vastaan. Organic Eprints
Salonen, Jukka.
Hanke-esittely ProAgrian viljelijöille, aluksi ppt-esityksenä sisätiloissa (liite) ja koekentillä Jokioisilla. Luonnonvarakeskuksen (Luke) luomupelloilla Jokioisilla aloitettiin keväällä 2015 kaksi kenttäkoetta, joissa tarkastellaan erilaisten aluskasvien ja niiden seosten soveltuvuutta rikkakasvien hallintaan viljavaltaisessa viljelykierrossa. Koealueiden esikasvina oli apila/heinä-nurmi, joka kylvettiin 2013 kaura-suojaviljaan. Vuonna 2015 aluskasvit kylvettiin joko heti Wolmari-ohran kylvön jälkeen tai ohrakasvustoon heinäkuussa. Aluskasveja oli yhteensä 16 kasvilajia ja 18 lajiketta. Niitä sekoittamalla saatiin 8 erilaista vaihtoehtoa, joiden tavoitteena on joko typen sidonta (palkokasvit) tai keruu (heinät). Seoksina kylvettiin sekä...
Tipo: Teaching resource Palavras-chave: Weed management.
Ano: 2016 URL: http://orgprints.org/30628/1/LUKEKASesittely_JOKpellonpiennar210916_esitys.pdf
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Comparison of three tillage intensities on grass weed occurrence in cereal rotation Organic Eprints
Salonen, Jukka.
In general, a rapid infestation of grass weeds was demonstrated in the plots with direct drilling. On the contrary, hardly any grass weeds infested the ploughed plots. The proportion between grass weeds and broad-leaved weeds differed in three tillage systems.
Tipo: Conference paper, poster, etc. Palavras-chave: Weed management.
Ano: 2009 URL: http://orgprints.org/15777/1/Salonen.doc
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Composition of weed flora in spring cereals in Finland - a fourth survey Organic Eprints
Salonen, Jukka; Hyvönen, Terho; Jalli, Heikki.
The weed flora in conventionally and organically grown spring cereals was investigated in southern and central Finland during 2007–2009. The survey was conducted in 16 regions, 283 farms and 595 fields (72 organically cropped and 523 conventionally cropped fields, of which 503 were treated with herbicides). The occurrence of weeds was assessed in late July–early August. Altogether 148 weed species were identified, of which 128 were broad-leaved and 20 grass species. In organically cropped fields, the average species number per field was 21 and the most frequent species were Chenopodium album 96%, Stellaria media 94%, Viola arvensis 94% and Elymus repens 89%. In conventionally cropped fields, the average species number was 12 and the most frequent weed...
Tipo: Journal paper Palavras-chave: Weed management.
Ano: 2011 URL: http://orgprints.org/19399/1/SALONEN.pdf
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Cover crops in cereals – better companions than weeds? Organic Eprints
Salonen, Jukka; Zarina, Livija; Melander, Bo.
Cover crops have gained popularity in cereal cropping now that they are one of the subsidized options in agri-environmental schemes of the EU. Several studies on cover/catch crops affecting nutrient leaching have been published but less information is available concerning their applicability for weed management. In our opinion, combinations of crop and cover crop types as well as crop sequencing conform IPM principles and optimize weed management. The PRODIVA project (ERA-Net Core Organic Plus Action, www.coreorganicplus.org) aims at identifying weed community associations with most common crop types in organic crop production systems. We will clarify the characteristics and relative competitiveness of cover crops providing strong weed suppression without...
Tipo: Conference paper, poster, etc. Palavras-chave: Weed management.
Ano: 2016 URL: http://orgprints.org/30624/1/PRODIVA%20Poster%20Cover%20Crops_IWSC2016Prague_final030516.pdf
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Crop diversification and weeds Acronym: PRODIVA Organic Eprints
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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Crop diversification and weeds in organic cereal production Organic Eprints
Salonen, Jukka; Melander, Bo; Gerowitt, Bärbel; Lundkvist, Anneli; Verwijst, Theo; Krawczyk, Roman; Kaczmarek, Sylvia; Zarina, Livija.
PRODIVA Project introduction
Tipo: Conference paper, poster, etc. Palavras-chave: Crop combinations and interactions; Weed management.
Ano: 2016 URL: http://orgprints.org/29680/1/PRODIVA%20Poster%20Crop%20diversification%20and%20weeds_SMTP2016Helsinki.pdf
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Crop diversification and weeds in organic cereal production Organic Eprints
Salonen, Jukka; Melander, Bo; Gerowitt, Bärbel; Lundkvist, Anneli; Verwijst, Theo; Krawczyk, Roman; Kaczmarek, Sylvia; Zarina, Livija.
PRODIVA Project introduction and promotion
Tipo: Conference paper, poster, etc. Palavras-chave: Crop combinations and interactions; Weed management.
Ano: 2016 URL: http://orgprints.org/30107/1/PRODIVA%20Poster%20Crop%20diversification%20and%20weeds_SMTP2016Helsinki.pdf
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Crop diversification for weed management in North European organic arable cropping systems. Introduction to the study of international research-network on diversification and weed management: PRODIVA. Organic Eprints
Hofmeijer, Merel A.J.; Gerowitt, Bärbel; Krawczyk, Roman; Salonen, Jukka; Verwijst, Theo; Zarina, Livija; Melander, Bo.
The international research network PRODIVA aims to improved utilization of crop diversification for weed management in northern European organic arable cropping systems. The over-all aim is to support organic agriculture for the exploitation of crop diversification methods to improve weed management and still maintain a diverse weed flora. Hypothesized is that crop diversification can improve weed management while ensuring a diverse weed flora by the employment of: (I) pertinent crop sequencing that mitigates noxious weed species (II) improved cover crop establishment with selected competitive cover crop species (III) crop mixtures utilizing the resources better than sole crop species resulting in more weed suppression (IV) variety mixtures exerting a...
Tipo: Conference paper, poster, etc. Palavras-chave: Biodiversity and ecosystem services; Weed management.
Ano: 2016 URL: http://orgprints.org/30633/1/Poster%20PRODIVA%20Praag%20-%20MAJ%20Hofmeijer.pdf
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Crop diversification for weed management in organic arable cropping systems Organic Eprints
Zarina, Livija; Gerowitt, Bärbel; Melander, Bo; Salonen, Jukka; Krawczyk, Roman; Verwijst, Theo.
Within the ERA-net CORE Organic Plus transnational programmes supported project PRODIVA producing of the information required for a better utilization of crop diversification for weed management in North European organic arable cropping systems was started. To fulfill the goal of this project- not to eradicate weed problems, which is unlikely to happen in any arable farming system, but to maintain a diversified and manageable weed flora that can support beneficial organisms- there were data from ongoing long-termed cropping system experiments from Latvia analyzed. It is hypothesised that: a) perennial weeds can be suppressed in the post-harvest period by improved cover crop establishment and pertinent selection of cover crop species; b) on-farm practices...
Tipo: Conference paper, poster, etc. Palavras-chave: Weed management.
Ano: 2015 URL: http://orgprints.org/30746/1/746
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Crop diversification for weed management in organic arable cropping systems Organic Eprints
Zarina, Livija; Gerowitt, Bärbel; Melander, Bo; Salonen, Jukka; Krawczyk, Roman; Verwijst, Theo.
Within the ERA-net CORE Organic Plus transnational programmes supported project PRODIVA producing of the information required for a better utilization of crop diversification for weed management in North European organic arable cropping systems was started. To fulfil the goal of this project- not to eradicate weed problems, which is unlikely to happen in any arable farming system, but to maintain a diversified and manageable weed flora that can support beneficial organisms- there were data from ongoing long-termed cropping system experiments from Latvia analyzed. It is hypothesised that: a) perennial weeds can be suppressed in the post-harvest period by improved cover crop establishment and pertinent selection of cover crop species; b) on-farm practices...
Tipo: Conference paper, poster, etc. Palavras-chave: Weed management.
Ano: 2015 URL: http://orgprints.org/30741/1/746
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Crop diversification for weed management in organic arable cropping systems Organic Eprints
Zarina, Livija; Gerowitt, Barbel; Melander, Bo; Salonen, Jukka; Krawczuk, Roman; Verwijst, Theo.
Within the ERA-net CORE Organic Plus transnational programmes supported project PRODIVA producing of the information required for a better utilization of crop diversification for weed management in North European organic arable cropping systems was started. To fulfill the goal of this project- not to eradicate weed problems, which is unlikely to happen in any arable farming system, but to maintain a diversified and manageable weed flora that can support beneficial organisms- there were data from ongoing long-termed cropping system experiments from Latvia analyzed. It is hypothesised that: a) perennial weeds can be suppressed in the post-harvest period by improved cover crop establishment and pertinent selection of cover crop species; b) on-farm...
Tipo: Conference paper, poster, etc. Palavras-chave: Weed management.
Ano: 2016 URL: http://orgprints.org/29793/1/Zarina%20et%20all%20274-1405-1-PB.pdf
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Crop diversity - a crucial remedy for weed management in organic cropping Organic Eprints
Salonen, Jukka; Zarina, Livija; Melander, Bo.
A wide variety of crop species in crop rotations has turned out an essential means to obtain diversification in organic cropping systems. Moreover, the potential of cover crops to assist the main crop in weed suppression has been studied in Denmark, Finland and Latvia. Long-term field experiments in Denmark and Latvia demonstrated that crops with different life cycles and life spans in crop sequence resulted in a relatively low and manageable pressure of annual weeds. The study was part of the PRODIVA project (Core Organic Plus) in which crop diversification for better weed management has been studied and presented in the 18th EWRS Symposium.
Tipo: Conference paper, poster, etc. Palavras-chave: Crop combinations and interactions; Weed management.
Ano: 2018 URL: http://orgprints.org/33480/1/EWRS2018_OralAbstract_Salonen%20et%20al.pdf
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Dormancy of vegetative reproduction in some perennial weeds Organic Eprints
Fogelfors, Håkan; Brandsætter, Lars Olav; Graglia, Scientist Enrico; Vanhala, Petri; Salonen, Jukka; Håkansson, Sigurd.
In a joint experiment between Norway, Denmark, Finland and Sweden the dormancy of vegetative reproduction in Cirsium arvense, Sonchus arvensis and Elymus repens was studied during the latter part of the vegetation period.The aim of the study was to achieve a more efficient control of these weed species by knowing their reproduction behaviour in the autumn.
Tipo: Conference paper, poster, etc. Palavras-chave: Research methodology and philosophy; Weed management.
Ano: 2003 URL: http://orgprints.org/1730/1/Dormancy.pdf
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Effect of crop species and management practices on perennial weeds in organic farming Organic Eprints
Vanhala, Petri; Lötjönen, Timo; Salonen, Jukka.
In order to study the biology and non-chemical control of perennial weeds, a three-year field experiment was established in 2001 at Vihti, southern Finland. The experiment was placed in a clay soil field under organic production, infested moderately with Cirsium arvense, Elymus repens and Stachys palustris, and heavily with Sonchus arvensis.
Tipo: Conference paper, poster, etc. Palavras-chave: Weed management.
Ano: 2003 URL: http://orgprints.org/11140/1/NJF1.pdf
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Farmers deserve credit for contributing to the weed surveys Organic Eprints
Salonen, Jukka; Hofmeijer, Merel A.J.; Zarina, Livija; Krawczyk, Roman; Verwijst, Theo; Melander, Bo.
Weed surveys were carried out in the PRODIVA project during 2015-2016 with a smooth collaboration with farmers. More than 200 fields were surveyed in six countries around the Baltic Sea. In addition to the weed observations in spring cereal fields we collected information about the farming practices in organic cropping.
Tipo: Conference paper, poster, etc. Palavras-chave: Weed management.
Ano: 2018 URL: http://orgprints.org/32534/1/PRODIVA_Poster_SMTP2018Helsinki_final.pdf
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From practice to science and back – knowledge and information chains in PRODIVA Organic Eprints
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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Geographical distribution of challenging weed species - Current knowledge in organic arable farming in the Baltic sea region Organic Eprints
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
Registros recuperados: 45
Primeira ... 123 ... Última
 

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