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Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 117
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OK-Net Arable online knowledge platform Organic Eprints
Rasmussen, Ilse A.; Jensen, Allan Leck; Jørgensen, Margit Styrbæk; Kristensen, Helene; Conder, Malgorzata; Micheloni, Cristina; Moeskops, Bram.
The complexity of organic farming requires farmers to have a very high level of knowledge and skills, but exchange on organic farming techniques remains limited. In order to increase productivity and quality in organic arable cropping in Europe, the thematic network OK-Net Arable under Horizon 2020 has the aim to improve the exchange of innovative and traditional knowledge among farmers, farm advisers and scientists. An online platform for knowledge exchange has been created, offering innovative education and end-user material as well as communication between stakeholders. A number of specific tools – providing information about how to put existing knowledge from research and practise into use – have been chosen. They are presented on the platform with the...
Tipo: Conference paper, poster, etc. Palavras-chave: Crop husbandry; Social aspects; Technology transfer; Research communication and quality.
Ano: 2017 URL: http://orgprints.org/32354/7/Rasmussen_OK-Net%20Arable_OWC_2017_pres.pdf
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Growth dynamics of perennial weeds in long-termed organic 8 cropping systems on two locations in Denmark Organic Eprints
Melander, Bo; Rasmussen, Ilse A.; Askegaard, Margrethe; Olesen, Jørgen E..
The dynamics of perennial weeds in organic crop rotations.
Tipo: Journal paper Palavras-chave: Weed management.
Ano: 2014 URL: http://orgprints.org/25686/7/25686.pdf
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Organic control of oilseed rape pests through natural pesticides and mixed cultivation with turnip rape Organic Eprints
Ludwig, T.; Jansen, B.; Mayer, J.; Kühne, S.; Böhm, H.; Rasmussen, Ilse A.; Hermansen, John.
A mixed cropping system of rapeseed and 10% turnip rape as trap crop was compared with oilseed rape in pure stand to demonstrate the reduction of infestation by insect pests. Furthermore the application of bio-pesticides like pyrethrum/rape oil (Spruzit Neu), spinosad (SpinTor), diatomeen earth (SiO2) /sunflower-oil and rock powder/water was tased.
Tipo: Conference paper, poster, etc. Palavras-chave: Cereals; Pulses and oilseeds Crop health; Quality; Protection.
Ano: 2011 URL: http://orgprints.org/19658/1/669_OEL_boehm_ISOFAR_2011.pdf
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Forsøgsbeskrivelse af specialforsøg BAR-OF WP2 2004 Organic Eprints
Hansen, Preben Klarskov; Kristensen, Kristian; Rasmussen, Ilse A..
Dokumentet indeholder en beskrivelse af specialforsøget BAR-OF WP2 beliggende på Forskningscenter Flakkebjerg.
Tipo: Report Palavras-chave: Crop health; Quality; Protection Crop combinations and interactions Cereals; Pulses and oilseeds Weed management.
Ano: 2004 URL: http://orgprints.org/3432/1/3432.pdf
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Økologi med alle midler Organic Eprints
Rasmussen, Ilse A..
På en studietur i det sydøstlige Australien besøgte jeg to økologiske landbrug, som begge brugte præparater og såede i forhold til månens stilling. Generelt oplevede jeg en stor interesse for forskellige alternative tiltag - og ikke kun blandt økologer. Jeg stødte på firmaer som BioAg og Biological Farming, der sælger produkter, som skal fremme livet i jorden og dermed også gerne udbytterne. Også på IFOAM- og den videnskabelige ISOFAR-konference fornemmer man, at der er mere gang i biodynamikken og andre alternativer i Australien end herhjemme.
Tipo: Newspaper or magazine article Palavras-chave: Australia; Production systems.
Ano: 2005 URL: http://orgprints.org/7920/1/7920.pdf
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Mekanisk ukrudtsbekæmpelse i kartofler Organic Eprints
Rasmussen, Ilse A.; Rasmussen, Karsten.
Der er udført forsøg to steder i to år med rullestjernerenseren i kartofler. Formålet har været at finde det mindste antal behandlinger for at minimere afgrødeskade og maximere effekten på både enårigt og flerårigt ukrudt. Behandlingerne blev udført på ukrudtets trådstadie, kimbladsstadie eller løvbladstadie. Det tilsvarende antal behandlinger var 4 eller 6, 2 eller 3 og 1 eller 2. Effekten på biomasse af enårigt ukrudt var over 80% med en overkørsel og over 90% med to. Effekten på biomasse af flerårigt ukrudt var over 50% med mere end en overkørsel. Kun i ét forsøg blev udbyttet reduceret (ca. 10%) ved mekanisk bekæmpelse sammenlignet med kemisk, mens der var 50% udbyttetab i de ubehandlede parceller. Flere behandlinger havde en tendens til at reducere...
Tipo: Conference paper, poster, etc. Palavras-chave: Root crops; Weed management.
Ano: 2003 URL: http://orgprints.org/1509/1/PVKkartofler_2003.pdf
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The dynamics of Cirsium arvense and Elytrigia repens in long-termed organic crop rotation experiments 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 1997-2009. 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/28733/7/28733.pdf
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Hvad er en god vårbyg til økologisk jordbrug? Organic Eprints
Rasmussen, Ilse A.; Østergård, Hanne; Willas, Jakob; Nielsen, Niels Erik; Hansen, Preben Klarskov; Hovmøller, Mogens; Backes, Gunter.
Gennemgang af hvad en god vårbygsort er for økologisk jordbrug. Sortsvalg, udbytte, sortsblandinger, næringsstofoptagelse, ukrudtskonkurrenceevne, sygdomsrobusthed, molekulære markører.
Tipo: Report Palavras-chave: Cereals; Pulses and oilseeds Breeding; Genetics and propagation.
Ano: 2004 URL: http://orgprints.org/3435/1/3435.pdf
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Cirsium arvense responses to stubble cultivation and catch crops in organic cropping systems Organic Eprints
Holst, Niels; Melander, Bo; Rasmussen, Ilse A.; Hansen, Preben Klarskov.
Field studies on perennial weeds, such as Cirsium arvense, are necessary to study the systemic effects of weed control. In this study we analyse the responses in above-ground C. arvense biomass and crop yield from results obtained in two organic field experiments, both combining stubble cultivation with post-harvest catch crops. A range of catch crops was investigated, varying in both species mixture and method of establishment, yet stubble cultivation was the only treatment found to reduce C. arvense density. The effect was even seen only in one year when a harsh winter acted synergistically with soil tillage. C. arvense exhibited density-dependent growth, in terms of above-ground biomass at harvest, with an estimated max. exponential growth rate of...
Tipo: Journal paper Palavras-chave: Weed management.
Ano: 2012 URL: http://orgprints.org/20590/4/20590.pdf
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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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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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Nye resultater med bekæmpelse af følfod og tidsler Organic Eprints
Hansen, Preben Klarskov; Rasmussen, Ilse A..
Rodukrudt udgør et at de største problemer ved økologisk dyrkning. Især tidsler, men også følfod kan være problematiske at bekæmpe og forårsager store udbyttetab. Forsøgsserier peger på, at stubbearbejdning kan undværes ved bekæmpelse af tidsler, mens følfod bekæmpes ved en strategi med gentagne fræsninger.
Tipo: Conference paper, poster, etc. Palavras-chave: Weed management.
Ano: 2010 URL: http://orgprints.org/18919/10/18919b.pdf
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The Danish organic crop rotation experiment for cereal production 1997-2004 Organic Eprints
Rasmussen, Ilse A.; Askegaard, Margrethe; Olesen, Jørgen E..
In 1997 a crop rotation experiment was initiated at three sites in Denmark. The objective of the experiment was to explore the possibilities for both short-term and long-term increases in organic cereal production through manipulation of crop rotation design on different soil types. The experiment included three factors (proportion of grass-clover in the rotation, catch crops and manure application) in a randomised factorial design. The main indicators measured in the experiment were crop yield, nutrient leaching and weeds. The crop rotation experiment has shown significant effects of location, crop rotation, catch crops and manure on yields, weed infestation, soil fertility and nutrient losses (Olesen et al., 2002; Schjønning et al., 2004; Askegaard et...
Tipo: Book chapter Palavras-chave: Nutrient turnover; Crop combinations and interactions; Weed management; Composting and manuring.
Ano: 2006 URL: http://orgprints.org/10000/1/10000.pdf
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Langsigtet balance i ukrudtsbestanden Organic Eprints
Rasmussen, Ilse A.; Melander, Bo; Hansen, Preben Klarskov; Holst, Niels.
Dokumentet beskriver hvorledes den langsigtede balance i ukrudtsbestanden kan simuleres ved hjælp af en populationsdynamisk model, samt hvordan balancen kan rykkes til landmandens fordel. f.eks ved hjælp af konkurrencestærke sorter
Tipo: Conference paper, poster, etc. Palavras-chave: Crop combinations and interactions; Weed management; Production systems.
Ano: 2004 URL: http://orgprints.org/3418/1/3418.pdf
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Nitrogen use efficiency of cereals in arable organic farming Organic Eprints
Olesen, Jørgen E.; Rasmussen, Ilse A.; Askegaard, Margrethe.
The effect of nitrogen (N) supply and weeds on grain yield of spring barley, winter wheat and winter rye was investigated from 1997 to 2004 in an organic farming crop rotation experiment in Denmark on three 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 apparent recovery efficiency of N in grains (nitrogen use efficiency, NUE) from NH4-N in applied manure varied from 29 to 38% in spring barley and from 23 to 44% in winter cereals. The NUE of above-ground N in catch crops sampled in November prior to the spring barley varied from 16 to 52%, with the highest value on the coarse sandy soil and the lowest...
Tipo: Conference paper, poster, etc. Palavras-chave: Nutrient turnover; Crop combinations and interactions; Composting and manuring.
Ano: 2008 URL: http://orgprints.org/12372/1/Olesen_12372_ed.doc
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Nyt fra de økologiske sædskifteforsøg - alle forsøgsparceller er høstet Organic Eprints
Rasmussen, Ilse A..
Økologiske sædskifteforsøg - udbytter, kvik, grøngødning
Tipo: Newspaper or magazine article Palavras-chave: Crop combinations and interactions Weed management Cereals; Pulses and oilseeds.
Ano: 2001 URL: http://orgprints.org/237/1/OJ01_249_6.doc
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Nyt fra de økologiske sædskifteforsøg - Lige nu i marken Organic Eprints
Rasmussen, Ilse A..
Økologiske sædskifteforsøg - ukrudtsbekæmpelse, rodukrudt
Tipo: Newspaper or magazine article Palavras-chave: Crop combinations and interactions Weed management Cereals; Pulses and oilseeds.
Ano: 1999 URL: http://orgprints.org/242/1/OJ99_194_10.doc
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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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Kløvergræs som omdrejningspunkt Organic Eprints
Olesen, Jørgen E.; Askegaard, Margrethe; Rasmussen, Ilse A..
I mange økologiske sædskifter indgår grøngødning med kløvergræs som det omdrejningspunkt, der opbygger jordens frugtbarhed og dermed sikrer forsyningen af kvælstof (N) til de efterfølgende salgsafgrøder. Samtidigt kan kløvergræsset medvirke til at reducere ukrudtsbestanden, især af problematiske arter som f.eks. tidsler. Opbygningen af jordens frugtbarhed har dog også konsekvenser i form af øget risiko for tab af kvælstof ved udvaskning, og samtidig har kløvergræsset betydning for effekten af efterafgrøder og udnyttelsen af husdyrgødning i sædskiftet.
Tipo: Conference paper, poster, etc. Palavras-chave: Nutrient turnover Pasture and forage crops Cereals; Pulses and oilseeds Crop combinations and interactions.
Ano: 2006 URL: http://orgprints.org/7875/1/7875.pdf
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Perennial weeds in a crop rotation perspective Organic Eprints
Rasmussen, Ilse A..
Biology of perennial weeds, prevention, control and management in organic crop rotations.
Tipo: Conference paper, poster, etc. Palavras-chave: Weed management.
Ano: 2006 URL: http://orgprints.org/7930/1/7930.pdf
Registros recuperados: 117
Primeira ... 123456 ... Última
 

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