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Registros recuperados: 117
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The organic sector in the Nordic-Baltic region - what is achieved, and what is challenging future growth? Organic Eprints
Serikstad, Grete Lene; Løes, Anne-Kristin; Dýrmundsson, Ó.R.; Kreismane, Dzidra; Mikkola, Minna; Pehme, Sirli; Rasmussen, Ilse A.; Skulskis, Virgilijus; Wivstad, Maria.
This paper compiles statistics for certified organic farmland and organic consumption in the eight Nordic-Baltic countries, and describes main drivers and obstacles, focusing on policy and strategies including organic research. Significant differences are found between the countries, also between countries with relatively comparable climatic and economic conditions. Explanations are discussed. Successful examples, especially Denmark and Sweden, show that organic agriculture is an option for refreshing agriculture in general, when there is a significant political will to support this farming practice.
Tipo: Conference paper, poster, etc. Palavras-chave: "Organics" in general; Baltic states; Countries and regions.
Ano: 2015 URL: http://orgprints.org/31328/1/PROCEEDINGS-of-the-25th-NJF-Congress-in-Riga-2015.pdf
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The suppression of Cirsium arvense and Elytrigia repens exerted by competitive crops plays a key role for their management in organic cropping systems Organic Eprints
Melander, Bo; Rasmussen, Ilse A..
Cirsium arvense and Elytrigia repens are perennial weeds prevalent in organic cropping systems in Scandinavia. This study analysed the population dynamics of both species in long-termed crop rotation experiments conducted at three sites (coarse sand, silt and sandy loam) in Denmark from 1997-2008. The purpose was to gain insights into the factors influencing perennial weeds population changes over time, especially those important for outbreaks of C. arvense and E. repens infestations. Data were obtained from three cycles of four-year crop rotations with various cash crops and annual grass-clover subjected to four treatment combinations: with and without animal manure and with and without catch crops. The perennials were controlled by different tillage and...
Tipo: Conference paper, poster, etc. Palavras-chave: Weed management.
Ano: 2014 URL: http://orgprints.org/28735/7/28735.pdf
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The value of catch crops and organic manures for spring barley in organic arable farming Organic Eprints
Olesen, Jørgen E.; Hansen, Elly M.; Askegaard, Margrethe; Rasmussen, Ilse A..
The effect of nitrogen (N) supply and weeds on grain yield of spring barley was investigated in an organic farming crop rotation experiment on three different soil types in Denmark from 1997 to 2001. Three experimental factors were included in the experiment in a factorial design: 1) crop rotation (lupin or pea/barley as previous crop to barley), 2) cover crop (with and without), and 3) manure (with and without). The crop rotations included grass-clover as a green manure crop. Animal manure was applied as slurry in rates corresponding to 40% of the N demand of the cereal crops. Application of 50 kg NH4-N ha-1 in manure (slurry) increased barley grain DM yield by 1.0 to 1.3 Mg DM ha-1, whereas the use of cover crops (primarily perennial ryegrass)...
Tipo: Journal paper Palavras-chave: Farming Systems.
Ano: 2007 URL: http://orgprints.org/3852/2/3852.pdf
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Tolerance of four spring barley (Hordeum vulgare L.) varieties to weed harrowing Organic Eprints
Hansen, Preben Klarskov; Rasmussen, Ilse A.; Holst, Niels; Andreasen, Christian.
We investigated the tolerance to weed harrowing of four spring barley varieties and examined the possible interactions between varietal weed suppressive ability and two nutrient levels. Tolerance was defined as the combined effect of crop resistance (ability to resist soil covering) and crop recovery (the ability to recover in terms of yield). The weed harrowing strategy was a combination of one pre- and one post-emergence weed harrowing. In terms of yield, the four varieties responded significantly differently to weed harrowing and the response depended on nutrient level. At the lower nutrient level, weed harrowing caused an increase in yield of 4.4 hkg ha-1 for a strong competitor (cv. Otira), while there was no effect on yield at the higher nutrient...
Tipo: Journal paper Palavras-chave: Crop health; Quality; Protection Crop combinations and interactions Weed management Breeding; Genetics and propagation.
Ano: 2007 URL: http://orgprints.org/11292/1/Tolerance_of_four_spring_barley_%28Hordeum_vulgare%29_varieties_to_weed_harrowing.pdf
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Tolerance to weed harrowing in four spring barley varieties Organic Eprints
Hansen, Preben Klarskov; Rasmussen, Ilse A.; Holst, Niels; Andreasen, Christian.
The aim of this study was to investigate possible interactions between a preventive and a curativ method (combination of one pre and one post-emergence weed harrowing). We estimated the damages by weed harrowing in four pure varieties of spring barley, and analysed if there were differences in resistance and tolerance to weed harrowing between the varieties. As organic growing conditions are characterised by greater differences in nutrient levels, we further examined if there was any interactions between harrowing resistance and tolerance of the varieties and two nutrient level. Tolerance to weed harrowing was measured as an immediate effect (Resistance=how much of the plant is covered with soil after weed harrowing), a short-term effect (growth rate...
Tipo: Journal paper Palavras-chave: Crop health; Quality; Protection Crop combinations and interactions Weed management Breeding; Genetics and propagation.
Ano: 2006 URL: http://orgprints.org/7872/1/7872.doc
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TP Organics Workshop:�Adapting the vision of TPO to the new challenges and policy context Organic Eprints
Rasmussen, Ilse A..
TP Organics Workshop: Adapting the vision of TPO to the new challenges and policy context. 1 – Empowerment of rural areas Facilitator: Eduoardo Cuoco 2 – Eco-funtioncal intensification Facilitator: Ilse A. Rasmussen 3 – Food for health and well-being Facilitator: Bruce Pearce 4 – Cross-cutting challenges: Climate change Water management Biodiversity Facilitator: Urs Niggli 5 - Knowledge Transfer Facilitator: Karin Ullvén
Tipo: Conference paper, poster, etc. Palavras-chave: Technology transfer; Research communication and quality.
Ano: 2014 URL: http://orgprints.org/25163/1/25163.pdf
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Ukrudt i økologiske kornsædskifteforsøg Organic Eprints
Rasmussen, Ilse A.; Askegaard, Margrethe; Olesen, Jørgen E..
Der er igangsat forsøg med økologiske sædskifter på fire forskellige steder i Danmark, afspejlende forskellige klima- og jordbundsforhold. De fire sædskifter har forskellig andel af kvælstoffikserende afgrøder hhv. korn til modenhed, med og uden fangafgrøder og med og uden husdyrgødning. Forsøgene har været gennemført i 1997 og 1998. I forsøgene er bl.a. registreret ukrudt. Det er for tidligt at sige noget om ukrudtets udvikling i de forskellige sædskifter. Der er mest ukrudt i vintersæden begge forsøgsår alle steder. I 1997 er der i de vårsåede afgrøder mest ukrudt i byg/ært. Der er signifikant mest ukrudt i de gødede led af vinterhveden i forhold til de ugødede i Flakkebjerg 1997 og Foulum 1998. Ukrudtsbekæmpelsen har kun haft signifikant effekt på...
Tipo: Report chapter Palavras-chave: Production systems Weed management Cereals; Pulses and oilseeds.
Ano: 1999 URL: http://orgprints.org/245/1/16.PVK990125.PDF
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Ukrudtets udvikling i de økologiske sædskifteforsøg. Organic Eprints
Bertelsen, Inger; Rasmussen, Ilse A..
På arealerne i det økologiske sædskifteforsøg er bestanden af ukrudt i afgrøderne fulgt år for år. Registreringerne viser forskel i ukrudtsbestanden afhængig af lokalitet, afgrøde og år.
Tipo: Web product Palavras-chave: Cereals; Pulses and oilseeds Weed management Production systems Biodiversity and ecosystem services Denmark.
Ano: 2004 URL: http://orgprints.org/3910/1/3910.pdf
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Ukrudtsbekæmpelse i økologisk dyrket vintersæd: resultater og erfaringer Organic Eprints
Rasmussen, Ilse A.; Melander, Bo.
I Danmark dyrkes en del vintersæd økologisk – især vinterhvede, men også rug og triticale. Et af problemerne i vintersæden kan være ukrudtsbekæmpelse. Mekanisk ukrudtsbekæmpelse i vintersæd frembyder både nogle problemer og nogle muligheder. Forskningsresultater viser, at med et lavt ukrudtstryk kan vintersæden sås til normal tid ved almindelig rækkeafstand og der kan udføres ukrudtsbekæmpelse ved ukrudtsharvning efterår og forår, men ved højt ukrudtstryk og især forekomst af arter med pælerod og strækningsvækst som lugtløs kamille (Tripleurospermum inodorum), korn-valmue (Papaver rhoeas) m.fl. vil det være mere hensigtsmæssigt at så sent, på stor rækkeafstand og med høj udsædsmængde, så der kan udføres radrensning kombineret med ukrudtsharvning. I det...
Tipo: Newspaper or magazine article Palavras-chave: Weed management Cereals; Pulses and oilseeds.
Ano: 2001 URL: http://orgprints.org/258/1/FnyttIAR_BME.pdf
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Ukrudtsbekæmpelse i økologisk jordbrug Organic Eprints
Rasmussen, Ilse A..
Ukrudtets biologi, forebyggelse og bekæmpelse. Praktisk ukrudtsbekæmpelse i økologsk landbrug.
Tipo: Conference paper, poster, etc. Palavras-chave: Weed management.
Ano: 2006 URL: http://orgprints.org/7931/1/7931.pdf
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Ukrudtsfloraens udvikling i de økologiske sædskifteforsøg Organic Eprints
Rasmussen, Ilse A..
Ukrudtsfrøpuljen er undersøgt i de økologiske sædskifteforsøg
Tipo: Journal paper Palavras-chave: Weed management Crop combinations and interactions Cereals; Pulses and oilseeds.
Ano: 2003 URL: http://orgprints.org/1491/1/sskift.html
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User guide for Organic Eprints in English, French, Spanish, Portuguese, Czech and Turkish Organic Eprints
Rasmussen, Ilse A.; Jensen, Allan Leck.
This user guide (or "screenshot manual") is a collection of screenshots from Organic Eprints at www.orgprints.org with instructions on how to use the archive. The guide shows how to register, browse, search, save searches and deposit documents by showing screenshots with short, instructive comments. The user guide has been translated into English, French, Spanish, Portuguese, Czech and Turkish, and these language versions are also available here. (The orgprints.org site is available in English and German.) We encourage translations of this user guide into additional languages. For those who wish to do so, the source file (Word) is also made avaialable here. Please contact the authors, or ICROFS (www.icrofs.org), if you wish to translate the user...
Tipo: Teaching resource Palavras-chave: Knowledge management.
Ano: 2013 URL: http://orgprints.org/29427/1/2013_Screenshot_manual_Organic_Eprints.pdf
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Vårbyg giver gode udbytter i økologiske forsøg Organic Eprints
Olesen, Jørgen E.; Rasmussen, Ilse A..
Vårbyg har givet gode udbytter i sædskifteforsøget i 2007, hvorimod vinterhveden har skuffet
Tipo: Newspaper or magazine article Palavras-chave: Cereals; Pulses and oilseeds.
Ano: 2007 URL: http://orgprints.org/14694/1/V%C3%A5rbyg_giver_gode_udbytter_i_%C3%B8kologiske_fors%C3%B8g.pdf
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Weed control in organic crop rotation experiments for grain production Organic Eprints
Rasmussen, Ilse A.; Askegaard, Margrethe; Olesen, Jørgen E..
Weed control methods in organic crop rotation experiments for grain production. Preliminary results.
Tipo: Conference paper, poster, etc. Palavras-chave: Weed management Cereals; Pulses and oilseeds.
Ano: 2000 URL: http://orgprints.org/249/1/rotations.PDF
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Weed control in organic crop rotations for grain production Organic Eprints
Rasmussen, Ilse A.; Askegaard, Margrethe; Olesen, Jørgen E..
Weed management carried out in organic crop rotation experiments for grain production. Preliminary results.
Tipo: Conference paper, poster, etc. Palavras-chave: Weed management Cereals; Pulses and oilseeds.
Ano: 1999 URL: http://orgprints.org/248/1/EWRS990325.PDF
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Weed management in organic cropping systems Organic Eprints
Rasmussen, Ilse A..
The aim of this review is to provide an overview of weed control methods available for organic farming systems based on research mainly from Europe and North America, but measures mentioned here are not necessarily allowed in organic farming. Biological control of weeds is not considered in this review.
Tipo: Book chapter Palavras-chave: Weed management.
Ano: 2004 URL: http://orgprints.org/3937/1/3937.pdf
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Winter cereal yields as affected by animal manure and green manure in organic arable farming Organic Eprints
Olesen, Jørgen Eivind; Askegaard, Margrethe; Rasmussen, Ilse A..
The effect of nitrogen (N) supply through animal and green manures on grain yield of winter wheat and winter rye was investigated from 1997 to 2004 in an organic farming crop rotation experiment in Denmark on three different soil types varying from coarse sand to sandy loam. Two experimental factors were included in the experiment in a factorial design: 1) catch crop (with and without), and 2) manure (with and without). The four-course crop rotation was spring barley undersown with grass/clover - grass/clover - winter wheat or wheat rye - pulse crop. All cuttings of the grass-clover were left on the soil as mulch. Animal manure was ap-plied as slurry to the cereal crops in the rotation in rates corresponding to 40% of the N de-mand of the cereal crops....
Tipo: Journal paper Palavras-chave: Nutrient turnover; Crop combinations and interactions.
Ano: 2009 URL: http://orgprints.org/16309/1/16309.pdf
Registros recuperados: 117
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