Consulta: creatorFacets:"Rasmussen, Ilse A."
Registros recuperados: 117
Data/hora: 05/06/2024 11:21:36

ØKOLOGISKE SÆDSKIFTER TIL PRODUKTION AF KORN
Provedor de dados: 21
Autores: Askegaard, Margrethe; Olesen, Jørgen E.; Rasmussen, Ilse A.; Driessen, Eugene; Nielsen, Erling; Thomsen, Henning C.; Bak, Holger; Lindberg, Julie F.
Hvordan kan sædskiftet indrettes så den økologiske kornproduktion øges uden at bæredygtigheden mindskes? Dette centrale spørgsmål belyses med resultater fra et økologisk sædskifteforsøg, der i 1996/97 blev anlagt på tre lokaliteter i Danmark. Da forsyningen med kvælstof (N) kan være meget kritisk i økologisk kornproduktion blev forsøget designet med fokus på dyrkningsmæssige faktorer der har indflydelse på N-forsyningen. Tre faktorer blev undersøgt:     1) Betydning af andel af N-fikserende afgrøder i sædskiftet   2) Betydning af efterafgrøder    3) Betydning af tilførsel af husdyrgødning.     Der blev målt udbytter, udvaskning af næringsstoffer samt forekomst af ukrudt.     Forsøget demonstrerer vigtigheden af at undersøge dyrkningsfaktorer i en...
Tipo: Journal paper
Palavras-chave: Cereals; Pulses and oilseeds Weed management Composting and manuring.
Ano: 2004
URL: http://orgprints.org/7854/1/7854.pdf

Nitrogen use efficiency of cereals in arable organic farming
Provedor de dados: 21
Autores: 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 largest value on the coarse sandy soil and the smallest...
Tipo: Conference paper, poster, etc.
Palavras-chave: Cereals; Pulses and oilseeds Air and water emissions Composting and manuring.
Ano: 2008
URL: http://orgprints.org/14690/1/Paper_ISOFAR2.pdf

Kvikbekæmpelse på sandjord
Provedor de dados: 21
Autores: Melander, Bo; Rasmussen, Ilse A.
Artiklen omhandler dyrkningsmæssige faktorers betydning for forekomsten af alm. kvik i økologiske sædskifter på sandjord.
Tipo: Newspaper or magazine article
Palavras-chave: Weed management.
Ano: 2013
URL: http://orgprints.org/25675/6/25675.pdf

The value of catch crops and organic manures for spring barley in organic arable farming
Provedor de dados: 21
Autores: 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

Weed control in organic crop rotations for grain production
Provedor de dados: 21
Autores: 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

Organic Eprints - training for National Editors
Provedor de dados: 21
Autores: Rasmussen, Ilse A.
Training for National Editors of Organic Eprints.
Tipo: Teaching resource
Palavras-chave: Education; Extension and communication.
Ano: 2011
URL: http://orgprints.org/18381/4/18381.pdf

OK-Net Arable online knowledge platform
Provedor de dados: 21
Autores: 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

Resultater og erfaringer med rodukrudtsbekæmpelse i økologisk planteproduktion ved AU
Provedor de dados: 21
Autores: Melander, Bo; Rasmussen, Ilse A.; Holst, Niels.
Præsentation af forskningsresultater vedrørende rodukrudtsbekæmpelse i økologisk jordbrug udført ved Aarhus Universitet
Tipo: Conference paper, poster, etc.
Palavras-chave: Weed management.
Ano: 2011
URL: http://orgprints.org/20620/4/20620.pdf

Farmknowledge.org - knowledge platform of OK-Net Arable
Provedor de dados: 21
Autores: Rasmussen, Ilse A.; Jensen, Allan Leck; Jørgensen, Margit Styrbæk; Kristensen, Helene; Christensen, Dennis.
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/32525/1/OK-Net_WP4_presentation_BioFach_20170216%20%28002%29.pdf

Sameksistens mellem genetisk modificerede, konventionelle og økologiske afgrøder
Provedor de dados: 21
Autores: Rasmussen, Ilse A.
I forbindelse med udarbejdelsen af en strategi for sameksistens mellem GM-afgrøder og konventionelle og økologiske afgrøder er der nedsat en udredningsgruppe samt tre undergrupper, der behandler faglige spørgsmål vedr. raps, græs- og kløverfrø samt økonomiske konsekvenser”. På et seminar i maj, hvor forskere og repræsentanter for interesseorganisationer deltog, blev det foreløbige arbejde gennemgået og diskuteret.
Tipo: Journal paper
Palavras-chave: Production systems; Policy environments and social economy.
Ano: 2003
URL: http://orgprints.org/1492/1/gmo.pdf

Balance i ukrudtsbestanden
Provedor de dados: 21
Autores: Rasmussen, Ilse A.; Melander, Bo.
Anvendelse af forebyggende metoder som konkurrencedygtige sorter og sædskifte kan være med til at reduceres bestanden af frøukrudt. Dette giver mulighed for en reduktion i herbicidanvendelsen, eller en bedre bekæmpelse af arter, som ellers kan være svære at kontrollere med herbicider.
Tipo: Newspaper or magazine article
Palavras-chave: Weed management.
Ano: 2005
URL: http://orgprints.org/7916/1/Mark2005.bmp

Organic Eprints - spiren til succes
Provedor de dados: 21
Autores: Rasmussen, Ilse A.
FØJO har etableret et åbent internet-arkiv, Organic Eprints for forskningen i økologisk jordbrug. Siden starten i efteråret er der lagt 300 artikler ind - flest fra FØJO og andre danske projekter, men også fra resten af Skandinavien, Tyskland, Holland, Schweitz og sågar en enkelt fra Australien! På længere sigt er det intentionen at arkivet skal kunne samle resultaterne fra økologisk forskning - gerne over hele verden. Der er indgået aftale med FiBL Berlin om et samarbejde om at bruge arkivet til tyske publikationer og lave et tysksproget interface. Og CUL, Sverige vil arbejde for at svenske forskere i så høj udstrækning som muligt lægger deres publikationer ind i arkivet.
Tipo: Journal paper
Palavras-chave: Research methodology and philosophy; "Organics" in general.
Ano: 2003
URL: http://orgprints.org/1502/1/eprint.pdf

Recent advances in weed management in cereals in Denmark
Provedor de dados: 21
Autores: Rasmussen, Ilse A.; Melander, Bo; Rasmussen, Karsten; Jensen, Rikke K.; Hansen, Preben K.; Rasmussen, Gitte; Christensen, Svend; Rasmussen, Jesper.
Cultural methods for prevention and improved crop competitiveness against weeds and mechanical weed control.
Tipo: Conference paper, poster, etc.
Palavras-chave: Weed management Cereals; Pulses and oilseeds.
Ano: 2000
URL: http://orgprints.org/250/1/management.PDF

Ukrudtsbekæmpelse i økologisk dyrket vintersæd: resultater og erfaringer
Provedor de dados: 21
Autores: 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

Svært at holde kvikken i skak
Provedor de dados: 21
Autores: Rasmussen, Ilse A.
Foråret nærmer sig - på de lette jorde på Jyndevad og Foulum er efterafgrøderne tandfræset et par uger før forårspløjningen, for at fremme omsætningen og dermed frigørelsen af de næringsstoffer efterafgrøden har samlet op. På Jyndevad er der pløjet, tromlet og udbragt gylle, som bliver placeret i strenge i jorden for at fremme afgrødens chance for at få fat i næringsstofferne før ukrudtet. Og forhåbentlig bliver der sået før Påske! Også på den stive lerjord i Holeby, som var vinterpløjet, er der kørt gylle og sået. I Holeby er der ekstremt lave fosfortal, og for at undersøge betydningen af dette for udbytterne, er en tredjedel af arealet af hver parcel blevet tilført 420 kg tripelfosfat. I Holeby er vinterhveden ukrudtsharvet. Dette gøres så tidligt som...
Tipo: Newspaper or magazine article
Palavras-chave: Crop combinations and interactions Cereals; Pulses and oilseeds Weed management.
Ano: 2004
URL: http://orgprints.org/3936/1/3936.doc

Design og sortsvalg i specialforsøg BAROF-WP2 – Ukrudtskonkurrence
Provedor de dados: 21
Autores: Hansen, Preben Klarskov; Rasmussen, Ilse A.
Forsøgsplan for forsøg med ukrudtskonkurrenceevne i BAROF.
Tipo: Report
Palavras-chave: Weed management Breeding; Genetics and propagation Cereals; Pulses and oilseeds.
Ano: 2003
URL: http://orgprints.org/1487/1/WP2_100703.pdf

Hvad er en god vårbyg til økologisk jordbrug?
Provedor de dados: 21
Autores: Rasmussen, Ilse A.
Gennemgang af hvad en god vårbygsort er for økologisk jordbrug
Tipo: Report
Palavras-chave: Cereals; Pulses and oilseeds Breeding; Genetics and propagation.
Ano: 2003
URL: http://orgprints.org/1489/1/Markbrochure_BAROF_2003_enk.pdf

Long-term organic crop rotation experiments for cereal production – yield development and dynamics
Provedor de dados: 21
Autores: Askegaard, Margrethe; Olesen, Jørgen E.; Rasmussen, Ilse A.
A crop rotation experiment was established in 1996/97 at three locations representing different soil types and climates. Three factors were tested: i) crop rotation with different proportions of N2-fixing crops, ii) with and without a catch crop, and iii) with and without animal manure. A green manure crop increased yields in the following cereal crops, but at the rotational level, total yields were larger in crop rotations without a green manure crop. There were positive effects of animal manure and catch crops on yield. However, except for the coarse sandy soil, the yield effects of catch crops and animal manure decreased over time when a grass-clover green manure was included in the rotation. It appeared that the buffering effect of clover can...
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop combinations and interactions; Specific methods.
Ano: 2005
URL: http://orgprints.org/4805/4/Askegaard_etal_4p_revised%2Ded.doc

Fact sheets for editors in Organic Eprints
Provedor de dados: 21
Autores: Rasmussen, Ilse A.
There are many editors of different kinds in Organic Eprints, such as conference editors, institutional editors, project editors and, in particular, 33 national editors.    Regularly new editors arrive and these fact sheets are meant to help new editors carry out their editor functions.    Note that some of these fact sheets are under revision because they are partly outdated or incomplete, and that revised versions will be made avaialable here when they are finished.
Tipo: Teaching resource
Palavras-chave: Knowledge management.
Ano: 2011
URL: http://orgprints.org/29426/7/Organic%20Eprints%20Help%20for%20Editors_v2.pdf

Nitrogen use efficiency of cereals in arable organic farming
Provedor de dados: 21
Autores: 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

Computer model for simulating the long-term dynamics of annual weeds: from seedlings to seeds
Provedor de dados: 21
Autores: Rasmussen, Ilse A.; Holst, Niels.
We developed a simple model to predict seed production from seedling density and estimated its six parameters for Chenopodium album and Papaver rhoeas from literature data, supplemented with field data on P. rhoeas seed production in Denmark. Parameter values were specified by their expected ranges rather than just point estimates, which enabled us to determine the expected ranges of seed production at given seedling densities. The model will be incorporated into a larger model framework presented earlier for a more complete description of annual weed seedbank dynamics in a crop rotation. We found the seed production (y) of P. rhoeas to be larger than reported earlier from UK; the relation to weed biomass (x) per m2 was curvilinear, y=6015∙x0.8153 seeds...
Tipo: Journal paper
Palavras-chave: Weed management.
Ano: 2003
URL: http://orgprints.org/3434/1/3434.doc

Ukrudtsbekæmpelse i økologisk jordbrug
Provedor de dados: 21
Autores: 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

TP Organics Workshop:�Adapting the vision of TPO to the new challenges and policy context
Provedor de dados: 21
Autores: 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

Ukrudtsfloraens udvikling i de økologiske sædskifteforsøg
Provedor de dados: 21
Autores: 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

Organic crop rotation experiments - short-term versus longer-term results
Provedor de dados: 21
Autores: Rasmussen, Ilse A.; Askegaard, Margrethe; Olesen, Jørgen E.
Danish experiments with cereal-based organic crop rotations have shown that the short-term results (the first course, up to four years after conversion) are different from those obtained in the longer-term (the second course, fifth to eighth year after conversion). Yield gain from use of manure increased from the first to the second course on a sandy soil, but decreased on loamier soils. Yield gain from leguminous catch crops increased from the first to the second course in a crop rotation without grass-clover. Some of these effects were caused by buffering effects of the grass-clover, other effects were caused by changes in soil fertility over time.
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop combinations and interactions.
Ano: 2006
URL: http://orgprints.org/7680/1/Rasmussen_IA_et_al.doc

Nyt fra de økologiske sædskifteforsøg - aktiviteter i marken lige nu
Provedor de dados: 21
Autores: Rasmussen, Ilse A.
Økologiske sædskifteforsøg - ukrudtsbekæmpelse
Tipo: Newspaper or magazine article
Palavras-chave: Crop combinations and interactions Weed management Cereals; Pulses and oilseeds.
Ano: 2001
URL: http://orgprints.org/240/1/OJ01_239_6.doc

The effect of sowing date, stale seedbed, row width and mechanical weed control on weeds and yields of organic winter wheat
Provedor de dados: 21
Autores: Rasmussen, Ilse A.
Three field experiments were carried out in organically grown winter wheat in Denmark. The treatments were sowing time (normal or late sowing) and false seedbed, row width (12 cm and 24 cm) and weed control method (untreated, mechanical weed control (weed harrowing at 12 cm supplemented with inter-row hoeing at 24 cm), and herbicide weed control). Weed biomass in mid-summer was greatest on plots sown at the normal sowing time (compared to delayed sowing) and was reduced by mechanical or chemical weed control (compared with untreated plots). Row width alone had no influence on weed biomass, but in the experiment with high weed pressure, the more intensive mechanical weed control used at a row width of 24 cm reduced weed biomass. Normal sowing time tended to...
Tipo: Journal paper
Palavras-chave: Cereals; Pulses and oilseeds Weed management Crop husbandry.
Ano: 2004
URL: http://orgprints.org/3932/1/rasmussen.pdf

A physiologically-based model of Cirsium arvense and Tussilago farfara growth and control
Provedor de dados: 21
Autores: Holst, Niels; Riemens, Marleen; Rasmussen, Ilse A.
Perennial herbs can be difficult to manage because of their underground storage organs which live sheltered from observation and control. In this paper, we describe the development of a population dynamics model for two perennial weeds, Cirsium arvense and Tussilago farfara. The model is physiologically based and includes plant growth and development,  and mowing as a control option. Model performance was compared with field data from monospecific stands of C. arvense in Denmark and Netherlands and of T. farfara in Denmark. Finally, optimal mowing strategies were explored with the model.
Tipo: Journal paper
Palavras-chave: Weed management.
Ano: 2012
URL: http://orgprints.org/20650/4/20650.pdf

Beskidte rækkeafgrøder giver ukrudt i kornet
Provedor de dados: 21
Autores: Rasmussen, Ilse A.; Rasmussen, Jesper.
Mislykkes bekæmpelsen af ukrudt i rækkeafgrøder, kan det give store ukrudtsproblemer flere år senere, viser ny resultater fra danske forsøg.
Tipo: Newspaper or magazine article
Palavras-chave: Production systems; Weed management.
Ano: 2000
URL: http://orgprints.org/261/1/Renmajs_1.jpg

Tolerance to weed harrowing in four spring barley varieties
Provedor de dados: 21
Autores: 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

Vårbyg giver gode udbytter i økologiske forsøg
Provedor de dados: 21
Autores: 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

Plant protection in an organic crop rotation experiment for grain production
Provedor de dados: 21
Autores: Rasmussen, Ilse A.; Askegaard, Margrethe; Olesen, Jørgen E.
The plant protection carried out in the Danish crop rotation experiment is described. These measures can be quite different in the different systems. While mechanical weed control can be carried out in systems without catch crops, it is not possible to do so in systems with catch crops without affecting the establishment of the catch crop.   The occurrence of weeds, pests and diseases is recorded, and the results are described. Since the results are only from the two first years of the experiments, it is not possible to conclude anything about the crop rotations as such. There are however differences related to the other experimental treatments in the experiment: the presence or absence of catch crops and manure. Only in very few cases are the differences...
Tipo: Conference paper, poster, etc.
Palavras-chave: Weed management Crop health; Quality; Protection Cereals; Pulses and oilseeds.
Ano: 1999
URL: http://orgprints.org/247/1/DARCOF1.PDF

Forsøgsbeskrivelse af specialforsøg BAROF WP2 2005
Provedor de dados: 21
Autores: Hansen, Preben Klarskov; Kristensen, Kristian; Rasmussen, Ilse A.
This document describes the design and layout of the field trial WP2 in 2005 at Research Centre Flakkebjerg. The experiment contains 4 pure genotypes and 2 or 3 component mixtures of these genoypes. Further the experiment contains 2 levels of pesticide treatment (with/without), 2 levels of mechanical weed control (with/without) and 2 levels of pig slurry application rates (40 and 80% of recommended need.
Tipo: Report
Palavras-chave: Crop health; Quality; Protection Weed management Breeding; Genetics and propagation.
Ano: 2005
URL: http://orgprints.org/5914/1/5914.pdf

Sådan er det gået med forsøgssædskifterne
Provedor de dados: 21
Autores: Olesen, Jørgen E.; Rasmussen, Ilse A.; Askegaard, Margrethe.
For at belyse mulighederne for at dyrke mere økologisk korn til modenhed, blev der i 1996/97 anlagt et økologisk sædskifteforsøg på fire lokaliteter i Danmark:  · Jyndevad (JB1) i Sønderjylland,  · Foulum (JB4) i Midtjylland  · Flakkebjerg (JB6) på Sjælland  · Holeby (JB7) på Lolland    Sædskifterne repræsenterer systemer med forskellige andele af korn og kvælstoffikserende afgrøder. De har været afprøvet med fire forskellige kombinationer af fangafgrøder (uden og med) og husdyrgødning (uden og med). Det giver en bred vifte af informationer om de enkelte systemers produktionsevne og stabilitet.
Tipo: Newspaper or magazine article
Palavras-chave: Cereals; Pulses and oilseeds.
Ano: 2003
URL: http://orgprints.org/1812/1/E0070.doc

Sædskiftets og gødskningens betydning for udbytte i vårbyg
Provedor de dados: 21
Autores: Olesen, Jørgen E.; Askegaard, Margrethe; Rasmussen, Ilse A.
Effekten af kvælstofforsyning og ukrudt på kerneudbytter i vårbyg blev undersøgt fra 1997 til 2007 i et økologisk sædskifteforsøg på tre jordtyper i Danmark. Resultaterne viser at det er muligt at få tilfredsstillende udbytter ved at kombinere kvælstoffikserende efterafgrøder og en moderat mængde husdyrgødning.
Tipo: Conference paper, poster, etc.
Palavras-chave: Cereals; Pulses and oilseeds Crop combinations and interactions Composting and manuring.
Ano: 2008
URL: http://orgprints.org/14691/1/Olesen_V%C3%A5rbyg.pdf

Modeling the effect of management strategies on the seed bank dynamics of volunteer oilseed rape
Provedor de dados: 21
Autores: Rasmussen, Ilse A.; Holst, Niels; Madsen, Kathrine Hauge.
Seeds of genetically modified (GM) crops remaining in the field after harvest may later emerge as volunteers. These can affect the purity of subsequently harvested crops and cause an uncontrolled flow of GM pollen into the agro-ecosystem. Management strategies that reduce these long-term effects of GM crops include (1) minimizing the input of GM seeds into the soil, (2) preventing proliferation by volunteers and (3) fast depletion of the soil GM seed bank. Formulation of such strategies requires knowledge of the biology of the GM plant (seed loss at or before harvest, seed survival, germination and emergence rates, reproduction, etc.) and of the effect of management practices on the different life stages.    Of the GM crops considered for cultivation in...
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection Weed management.
Ano: 2003
URL: http://orgprints.org/3934/1/3934.doc

Forsøgsbeskrivelse af specialforsøg BAR-OF WP2 2004
Provedor de dados: 21
Autores: 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

Learning from a long-term crop rotation experiment
Provedor de dados: 21
Autores: Olesen, Jørgen E.; Askegaard, Margrethe; Rasmussen, Ilse A.
A crop rotation experiment was established in 1996/97 at three locations representing differ-ent soil types and climates. Three factors were tested: i) crop rotation with different propor-tions of N2-fixing crops, ii) with and without a catch crop, and iii) with and without animal manure. A green manure crop increased yields in the following cereal crops, but at the rota-tional level, total yields were larger in crop rotations without a green manure crop. There were positive effects of animal manure and catch crops on yield. However, except for the coarse sandy soil, the yield effects of catch crops and animal manure decreased over time when a grass-clover green manure was included in the rotation. The problems with perennial weeds increased over time...
Tipo: Conference paper, poster, etc.
Palavras-chave: Nutrient turnover Cereals; Pulses and oilseeds Weed management.
Ano: 2005
URL: http://orgprints.org/7873/1/7873.pdf

The Danish organic crop rotation experiment for cereal production 1997-2004
Provedor de dados: 21
Autores: 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

Organic Eprints - meeting for National Editors
Provedor de dados: 21
Autores: Rasmussen, Ilse A.
Meeting agenda and presentaion for National Editors of Organic Eprints.
Tipo: Teaching resource
Palavras-chave: Education; Extension and communication.
Ano: 2011
URL: http://orgprints.org/18107/4/18107.pdf

Nyt fra de økologiske sædskifteforsøg - alle forsøgsparceller er høstet
Provedor de dados: 21
Autores: 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

Ikke-kemisk ukrudtsbekæmpelse – mekanisk og termisk
Provedor de dados: 21
Autores: Melander, Bo; Rasmussen, Ilse A.; Holst, Niels.
Kapitlet gennemgår den vigtigste viden omkring brugen af  íkke-kemisk ukrudtsbekæmpelse i landbrugs- og havebrugsafgrøder. Der indgår både klassisk viden og helt nye forskningsresultater. Kapitlet anvendes af studerende på landbrugsskoler, men kan også anvendes af andre interesserede.
Tipo: Book chapter
Palavras-chave: Weed management.
Ano: 2011
URL: http://orgprints.org/20610/4/20610.pdf

The suppression of Cirsium arvense and Elytrigia repens exerted by competitive crops plays a key role for their management in organic cropping systems
Provedor de dados: 21
Autores: 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

Perennial weeds in a crop rotation perspective
Provedor de dados: 21
Autores: 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

Nyt fra de økologiske sædskifteforsøg - hvad sker der med jordens pulje af ukrudtsfrø på de økologiske forsøgsmarker
Provedor de dados: 21
Autores: Rasmussen, Ilse A.
Ukrudtsfrøpuljen er undersøgt i de økologiske sædskifteforsøg
Tipo: Newspaper or magazine article
Palavras-chave: Crop combinations and interactions Weed management Cereals; Pulses and oilseeds.
Ano: 2003
URL: http://orgprints.org/1482/1/sskift.pdf

D4.1: Online Knowledge Platform
Provedor de dados: 21
Autores: Rasmussen, Ilse A.; Jensen, Allan Leck.
The OK-Net Arable project has launched a platform aimed at filling the gap in the exchange of information between farmers across Europe. Farmers’ needs were taken into account at every stage of development in order to make it easy for them to use. The platform is available in 10 languages (English, Bulgarian, Danish, Dutch, Estonian, French, German, Hungarian, Italian and Latvian) and the solutions are divided according to the most relevant topics in organic arable farming: Soil quality and fertility, nutrient management, pest and disease control, weed management and solutions for specific crops. Not only can farmers and advisors find solutions and engage with each other, they can also propose solutions. The intention is that this will help fill the...
Tipo: Report
Palavras-chave: Knowledge management.
Ano: 2016
URL: http://orgprints.org/32268/1/OK_Net_WP4_D4.1_Knowledge%20Platform_20161013.pdf

Weed control in organic crop rotation experiments for grain production
Provedor de dados: 21
Autores: 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

Organic control of oilseed rape pests through natural pesticides and mixed cultivation with turnip rape
Provedor de dados: 21
Autores: 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

Winter cereal yields as affected by animal manure and green manure in organic arable farming
Provedor de dados: 21
Autores: 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

User guide for Organic Eprints in English, French, Spanish, Portuguese, Czech and Turkish
Provedor de dados: 21
Autores: 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

Konsekvenser af at nedsætte input af næringsstoffer på bedriften
Provedor de dados: 21
Autores: Rasmussen, Ilse A.; Askegaard, Margrethe; Olesen, Jørgen E.
I dag må der tilføres 70 kg kvælstof pr. ha i ikke-økologisk husdyrgødning. Hvis det blev besluttet at stoppe for denne mulighed, kunne det tænkes at have både direkte og indirekte indflydelse på udbytte,kvalitet,andre næringsstoffer end kvælstof,udvaskning af næringsstoffer,etablering af efterafgrøder samt ukrudt og andre skadevoldere
Tipo: Conference paper, poster, etc.
Palavras-chave: Nutrient turnover Cereals; Pulses and oilseeds.
Ano: 2003
URL: http://orgprints.org/1504/1/Godningsseminar_IAR.pdf

Exchanging knowledge to improve organic arable farming: An evaluation of knowledge exchange tools with farmer groups across Europe
Provedor de dados: 21
Autores: Bliss, Katie; Padel, Susanne; Cullen, Beth; Ducottet, Charline; Mullender, Samantha; Rasmussen, Ilse A.; Moeskops, Bram.
Organic farming is knowledge intensive. To support farmers in improve yields and organic agriculture systems, there is a need to improve how knowledge is shared. There is an established culture of sharing ideas, successes and failures in farming. The internet and information technologies open-up new opportunities for knowledge exchange involving farmers, researchers, advisors and other practitioners. The OK-Net Arable brought together practitioners from regional Farmer Innovation Groups across Europe in a multi-actor project to explore how online knowledge exchange could be improved. Feedback from the groups was obtained for 36 'tools', defined as end-user materials, such as technical guides, videos on websites informing about practices in organic...
Tipo: Journal paper
Palavras-chave: Soil tillage Education; Extension and communication Weed management.
Ano: 2018
URL: http://orgprints.org/32860/2/Bliss_Exchanging%20knowledge_32860.pdf

Nyt fra de økologiske sædskifteforsøg - Kløvergræsset i Jyndevad har været et smertensbarn
Provedor de dados: 21
Autores: Rasmussen, Ilse A.
Økologiske sædskifteforsøg - kløvergræs
Tipo: Newspaper or magazine article
Palavras-chave: Crop combinations and interactions Weed management Cereals; Pulses and oilseeds.
Ano: 2002
URL: http://orgprints.org/236/1/OJ02_264_6.doc

Problemer med rodukrudt
Provedor de dados: 21
Autores: Rasmussen, Ilse A.; Askegaard, Margrethe; Olesen, Jørgen E.
Rodukrudtet bredte sig mere end forudset i forsøgssædskifterne og bekæmpes med sædskifte, fangafgrøder og mekanik
Tipo: Newspaper or magazine article
Palavras-chave: Crop combinations and interactions Weed management Cereals; Pulses and oilseeds.
Ano: 2002
URL: http://orgprints.org/257/1/OJ02_263_8.jpg

Tolerance of four spring barley (Hordeum vulgare L.) varieties to weed harrowing
Provedor de dados: 21
Autores: 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

Organic bread-wheat in New England, USA
Provedor de dados: 21
Autores: Rasmussen, Ilse A.; Mallory, Ellen.
In October 2010, researchers, farmers and millers from Maine and Vermont, USA, organized a trip to Denmark, in order to learn about local bread wheat production, milling and use from their more experienced counterparts with climates similar to their own.  They have received a grant over four years for the project antitled Enhancing Farmers’ Capacity to Produce High Quality Organic Bread Wheat in which they will carry out research, development and education to improve the production and quality of organic bread wheat in the two states.
Tipo: Newspaper or magazine article
Palavras-chave: Composting and manuring Breeding; Genetics and propagation Weed management.
Ano: 2010
URL: http://orgprints.org/18094/1/18094.pdf

Nye danske resultater med bekæmpelse af Kveke (Elytrigia repens), Hestehov (Tussilago farfara) og Åkertistel (Cirsium arvense) i økologisk jordbrug
Provedor de dados: 21
Autores: Melander, Bo; Rasmussen, Ilse A.; Hansen, Preben Klarskov.
Resultater med rodukrudtsbekæmpelse i økologisk jordbrug i Danmark
Tipo: Conference paper, poster, etc.
Palavras-chave: Weed management.
Ano: 2011
URL: http://orgprints.org/20626/4/20626.pdf

Sowing time, false seedbed, row distance and mechanical weed control in organic winter wheat.
Provedor de dados: 21
Autores: Rasmussen, Ilse A.
In organic farming, mechanical weed control in winter wheat is often difficult to carry out in the fall, and may damage the crop, and weed harrowing in the spring is not effective against erect, tap-rooted weeds such as Tripleurospermum inodorum, Papaver rhoeas, Brassica napus and others which have been established in the autumn. Some experiments concerning sowing strategy and intensity of  mechanical weed control, which included row distance, were conducted. The results underline the importance of choosing weed control strategy, including preventive measures, according to the weed flora in the field. In the experiment with low weed pressure and without erect weeds, there was very little effect of sowing strategy and row distance. In such a case, the...
Tipo: Conference paper, poster, etc.
Palavras-chave: Weed management Crop husbandry Cereals; Pulses and oilseeds.
Ano: 2000
URL: http://orgprints.org/216/1/Elspeet.pdf

Elytrigia repens population dynamics under different management schemes in organic cropping systems on coarse sand
Provedor de dados: 21
Autores: Rasmussen, Ilse A.; Melander, Bo; Askegaard, Margrethe; Kristensen, Kristian; Olesen, Jørgen E.
Elytrigia repens is a rhizomatous perennial weed prevalent in organic cropping systems in Scandinavia. This study analysed the population dynamics of E. repens in a long-term crop rotation experiment on coarse sand in Denmark in order to gain insights into the factors influencing its population changes, especially those important for outbreaks of 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. E. repens was controlled by different tillage and mowing strategies between and within crops. Pulses and spring cereals caused the highest population increases, especially...
Tipo: Journal paper
Palavras-chave: Weed management.
Ano: 2014
URL: http://orgprints.org/25677/13/25677.pdf

Forslag til forsøgsdesign for WP1 2004 og 2005 på Forskningscenter Flakkebjerg
Provedor de dados: 21
Autores: Hansen, Preben Klarskov; Rasmussen, Ilse A.; Kristensen, Kristian; Willas, Jakob.
Dokumentet indeholder forslag til forsøgsdesign for BAR-OF, WP1 forsøget beliggende på Forskningscenter Flakkebjerg i 2004 og 2005
Tipo: Report
Palavras-chave: Crop combinations and interactions Cereals; Pulses and oilseeds Weed management Production systems Surveys and statistics Specific methods.
Ano: 2004
URL: http://orgprints.org/3417/1/3417.pdf

Growth dynamics of perennial weeds in long-termed organic 8 cropping systems on two locations in Denmark
Provedor de dados: 21
Autores: 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

Økologisk planteavl uden husdyr
Provedor de dados: 21
Autores: Olesen, Jørgen E.; Askegaard, Margrethe; Rasmussen, Ilse A.
Jordens frugtbarhed opbygges og vedligeholdes gennem anvendelse af grøngødning, efterafgrøder og bælgsæd. Disse faktorer er i Danmark undersøgt i et forsøg med økologiske kornsædskifter på fire forskellige jordtyper. Der var store forskelle mellem lokaliteter med hensyn til udbytteniveau, udvaskning af næringsstoffer og forekomst af ukrudt. Mens de største kornudbytter blev høstet på lerjordene blev den største mængde råprotein i ært/byg høstet på sandjordene. På lerjorden og den lerblandede sandjord var der en god sammenhæng mellem udbyttet i vinterhvede og kvælstofopsamlingen i den forudgående kløvergræs, hvorimod kvælstofudvaskning på den grovsandede jord reducerede udbyttet i vinterhvede betydeligt. Udvaskningen af N var størst på den grovsandede jord....
Tipo: Conference paper, poster, etc.
Palavras-chave: Cereals; Pulses and oilseeds.
Ano: 2002
URL: http://orgprints.org/1807/1/C0022.doc

Kløvergræs som omdrejningspunkt
Provedor de dados: 21
Autores: 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

Introduction of Organic Eprints
Provedor de dados: 21
Autores: Rasmussen, Ilse A.
Organic Eprints is an open, on-line archive for research in organic food and farming with more than 10,000 publications - and growing rapidly. All use of the archive is free of charge. There are 15,000 registered users of Organic Eprints, and the archive has more than 175,000 visits each month. The archive contains scientific and popular articles, reports, presentations, project descriptions, books and other research publications. For each publication there is a short summary along with  information about authors and contacts, publishing details, peer review status, subject area and research affiliation. In most cases, the full articles are freely available for download.
Tipo: Conference paper, poster, etc.
Palavras-chave: Technology transfer; Research communication and quality.
Ano: 2011
URL: http://orgprints.org/19570/4/19570.pdf

Nyt fra de økologiske sædskifteforsøg
Provedor de dados: 21
Autores: Rasmussen, Ilse A.
Økologiske sædskifteforsøg - kvik og såtid
Tipo: Newspaper or magazine article
Palavras-chave: Crop combinations and interactions Weed management Cereals; Pulses and oilseeds.
Ano: 2000
URL: http://orgprints.org/241/1/OJ00_221_8.doc

Nyt fra de økologiske sædskifteforsøg - Vintersæden har overvintret rimeligt
Provedor de dados: 21
Autores: Rasmussen, Ilse A.
Økologiske sædskifteforsøg - jordstruktur, fosfor, kalium
Tipo: Newspaper or magazine article
Palavras-chave: Composting and manuring Soil tillage Cereals; Pulses and oilseeds.
Ano: 2000
URL: http://orgprints.org/239/1/OJ00_215_8.doc

Effect of Elymus repens on yield of winter wheat, spring barley and faba bean in an organic crop rotation experiment
Provedor de dados: 21
Autores: Rasmussen, Ilse A.; Sønderskov, Mette; Damgaard, Christian; Kristensen, Kristian.
The impact of crop rotation, nutrient levels and use of catch crops on effect of E. repens on a sandy soil at Jyndevad on yield of winter wheat (2006), spring barley (2007-2008) and faba bean (2006-2008) was studied in an existing organic crop rotation experiment (Olesen et al., 2000; Rasmussen et al., 2006). Some of the objectives were to determine the yield loss at different levels of infestation of the weed, and to determine whether this relationship was influenced by the treatments.  For all crops, the treatments had a high impact on the yield. The two treatments that had no manure applied for up to 12 years consistently had the lowest yields. In spring barley, the two treatments with manure and with catch crops consistently had the highest yields. In...
Tipo: Conference paper, poster, etc.
Palavras-chave: Cereals; Pulses and oilseeds Weed management.
Ano: 2009
URL: http://orgprints.org/18379/1/18379a.pdf

Langsigtet balance i ukrudtsbestanden
Provedor de dados: 21
Autores: 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

Cirsium arvense responses to stubble cultivation and   catch crops in organic cropping systems
Provedor de dados: 21
Autores: 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

Direct control of perennial weeds between crops – implications for organic farming
Provedor de dados: 21
Autores: Melander, Bo; Rasmussen, Ilse A.; Holst, Niels; Hansen, Preben Klarskov.
Perennial weeds can be a major constraint to organic crop production in several North European 26 countries. Preventive and cultural control measures may not suffice when infestations with perennials 27 become severe. Direct control actions applied between crops can then be necessary to reduce the 28 problems. We conducted two experiments, one on a sandy loam and one on a sandy soil, respectively, in 29 Denmark, with the aim of studying the efficacy of different implement types and strategies. The 30 treatments were employed against mixed stands of perennials after harvest of spring barley in two 31 consecutive years. Time of treatment, cultivation depth and combinations of implements constituted the 32 strategies. Treatment effects were evaluated in the...
Tipo: Journal paper
Palavras-chave: Weed management.
Ano: 2012
URL: http://orgprints.org/22000/7/22000.pdf

Kvik volder kvaler
Provedor de dados: 21
Autores: Rasmussen, Ilse A.; Thomsen, Henning; Askegaard, Margrethe; Olesen, Jørgen E.
Kvik giver problemer i det økologiske sædskifteforsøg på sandjorden ved Jyndevad Forsøgsstation
Tipo: Newspaper or magazine article
Palavras-chave: Weed management Crop combinations and interactions Cereals; Pulses and oilseeds.
Ano: 2003
URL: http://orgprints.org/1484/1/OJ03_288_8.jpg

Nitrate leaching from organic arable crop rotations is mostly determined by autumn field management
Provedor de dados: 21
Autores: Askegaard, Margrethe; Olesen, Jørgen E.; Rasmussen, Ilse A.; Kristensen, Kristian.
Two main challenges facing organic arable farming are the  supply of nitrogen (N) to the crop and the control of perennial weeds. Nitrate leaching from different organic arable crop rotations was investigated over three consecutive four-year crop rotations in a field experiment at three locations in Denmark (12 years in total). The experimental treatments were: i) crop rotation, ii) catch crop and iii) animal manure. Nitrate leaching was estimated from measured soil nitrate concentation in ceramic suction cells and modelled drainage. There were significant effects on annual N leaching of location (coarse sand &gt; loamy sand &gt; sandy loam) and catch crops (without &gt; with). Including a grass-clover green manure on 25% of the area did not increase N...
Tipo: Journal paper
Palavras-chave: Cereals; Pulses and oilseeds Composting and manuring Recycling; Balancing and resource management Nutrient turnover Farm nutrient management.
Ano: 2011
URL: http://orgprints.org/18849/1/Askegaard_AEE_Nitrate.pdf

Givtig blanding af forskere og græsrødder ved økologi-kongres i Australien
Provedor de dados: 21
Autores: Rasmussen, Ilse A.; Halberg, Niels; Hermansen, John; Østergård, Hanne.
International Society of Organic Agriculture Research (ISOFAR) afholdt sin første videnskabelige konference d. 21.-23. September 2005 i Adelaide, Australien. ISOFAR konferencen blev holdt samtidig med 15th IFOAM Organic World Congress: Shaping Sustainable Systems og 8th International IFOAM Organic Viticulture and Wine Conference. Der var omkring 1000 deltagere fra mere end 50 lande til hele arrangementet, heraf knap 25 danskere, flest forskere. Der var 11 danske indlæg og 3 postere på ISOFAR-delen og 8 danske indlæg og 3 postere på IFOAM-delen - så Danmark var godt repræsenteret.
Tipo: Journal paper
Palavras-chave: Research communication and quality.
Ano: 2005
URL: http://orgprints.org/7921/1/7921.doc

The effect of sowing strategy, row distance and mechanical weed control on weeds and yield in organic winter wheat
Provedor de dados: 21
Autores: Rasmussen, Ilse A.
A series of field experiments were carried out in winter wheat grown under organic conditions in Denmark on fields with different weed pressure. The treatments were sowing strategy (normal sowing time, late sowing and false seedbed), row distance (12 cm and 24 cm row distance) and weed control method (untreated, mechanical weed control (weed harrowing at 12 cm supplemented with row hoeing at 24 cm), and herbicide weed control). Weed biomass was largest at the normal sowing time and was reduced by mechanical or chemical weed control. Row distance alone did not generally influence weed biomass, but mechanical weed control reduced weed biomass at a row distance of 24 cm. Normal sowing time gave rise to about 10% higher yield. The effect of weed control on...
Tipo: Journal paper
Palavras-chave: Weed management Crop husbandry Cereals; Pulses and oilseeds.
Ano: 2002
URL: http://orgprints.org/215/1/vihveart_wr_rev.doc

Incompatibility between fertility building measures and the  management of perennial weeds in organic cropping systems
Provedor de dados: 21
Autores: Melander, Bo; Rasmussen, Ilse A.; Olesen, Jørgen E.
Fertility building measures are important components in improving the productivity of organic cropping  systems without livestock. However, some measures seem to be incompatible with the control of  perennial weeds that can have adverse effects such as significant weed competition. The influence of  fertility building measures (N2-fixing crops in the crop sequence, cover crops and manuring) and the  abundance of perennial weeds were studied in a long-term crop rotation experiment at two locations in  Denmark. The aim was to gain insight into the factors that influence the growth of perennial weed species  occurring in mixed stands. Data were obtained from three cycles of four-year arable crop rotations  comprising various cash crops in rotations with and...
Tipo: Journal paper
Palavras-chave: Weed management.
Ano: 2016
URL: http://orgprints.org/29791/1/Published_paper.pdf

Weed management in organic cropping systems
Provedor de dados: 21
Autores: 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

Mekanisk ukrudtsbekæmpelse i kartofler
Provedor de dados: 21
Autores: 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

LONG-TERM ORGANIC CROP ROTATION EXPERIMENTS FOR CEREAL PRODUCTION – PERENNIAL WEED CONTROL AND NITROGEN LEACHING
Provedor de dados: 21
Autores: Rasmussen, Ilse A.; Askegaard, Margrethe; Olesen, Jørgen E.
In long-term organic crop rotation experiments for cereal production, stubble cultivation to control perennial weeds increased nitrogen leaching compared to catch crops grown after harvest. Stubble cultivation contributed to the control of Elymus repens on a sandy soil, but not to the control of Cirsium arvense on a loamy soil. Manure application had a tendency to decrease E. repens density in one rotation at the sandy soil. Grass-clover green manure decreased C. arvense in the succeeding crops. Despite high infestations of perennial weeds, yields were at the same level with as without stubble cultivation. The results point to an important dilemma in organic farming: should the farmer control perennial weeds in the stubble at the expense of losing nitrogen...
Tipo: Conference paper, poster, etc.
Palavras-chave: Specific methods.
Ano: 2005
URL: http://orgprints.org/4451/4/Rasmussen_etal_4p_revised%2Ded.doc

Direct control of perennial weeds between crops – implications for organic farming
Provedor de dados: 21
Autores: Melander, Bo; Rasmussen, Ilse A.; Holst, Niels; Hansen, Preben Klarskov.
Perennial weeds can be a major constraint to organic crop production in several North European 26 countries. Preventive and cultural control measures may not suffice when infestations with perennials 27 become severe. Direct control actions applied between crops can then be necessary to reduce the 28 problems. We conducted two experiments, one on a sandy loam and one on a sandy soil, respectively, in 29 Denmark, with the aim of studying the efficacy of different implement types and strategies. The 30 treatments were employed against mixed stands of perennials after harvest of spring barley in two 31 consecutive years. Time of treatment, cultivation depth and combinations of implements constituted the 32 strategies. Treatment effects were evaluated in the...
Tipo: Journal paper
Palavras-chave: Weed management.
Ano: 2011
URL: http://orgprints.org/20625/4/20625.pdf

Nitrate leaching from organic arable crop rotations is mostly determined by autumn field management
Provedor de dados: 21
Autores: Askegaard, Margrethe; Olesen, Jørgen E.; Rasmussen, Ilse A.; Kristensen, Kristian.
Two main challenges facing organic arable farming are the  supply of nitrogen (N) to the crop and the control of perennial weeds. Nitrate leaching from different organic arable crop rotations was investigated over three consecutive four-year crop rotations in a field experiment at three locations in Denmark (12 years in total). The experimental treatments were: i) crop rotation, ii) catch crop and iii) animal manure. Nitrate leaching was estimated from measured soil nitrate concentation in ceramic suction cells and modelled drainage. There were significant effects on annual N leaching of location (coarse sand &gt; loamy sand &gt; sandy loam) and catch crops (without &gt; with). Including a grass-clover green manure on 25% of the area did not increase N...
Tipo: Journal paper
Palavras-chave: Cereals; Pulses and oilseeds Composting and manuring Recycling; Balancing and resource management Nutrient turnover Farm nutrient management.
Ano: 2011
URL: http://orgprints.org/18725/1/18725.pdf

Sædskifteforsøg skal give nye svar
Provedor de dados: 21
Autores: Rasmussen, Ilse A.; Askegaard, Margrethe; Olesen, Jørgen E.
Miljøgevinster, produktkvalitet og sundhed spiller en større rolle i de kommende sædskifteforsøg
Tipo: Newspaper or magazine article
Palavras-chave: Food security; Food quality and human health Crop combinations and interactions Weed management.
Ano: 2006
URL: http://orgprints.org/10003/1/10003.pdf

Instrucciones sobre cómo depositar un artículo del   IV Congreso Latinoamericano de Agroecología   en Organic eprints
Provedor de dados: 21
Autores: Rasmussen, Ilse A.; Flores, Patricia.
Instrucciones sobre cómo depositar un artículo del IV Congreso Latinoamericano de Agroecología en Organic eprints
Tipo: Other
Palavras-chave: Farming Systems; Animal husbandry; Crop husbandry; Soil; Food systems; Environmental aspects; Knowledge management.
Ano: 2013
URL: http://orgprints.org/24300/1/instrucciones%20para%20depositar%20articulos%20de%20conferencia%20socla_final.pdf

The organic sector in the Nordic-Baltic region - what is achieved, and what is challenging future growth?
Provedor de dados: 21
Autores: 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

Rodukrudt i sædskifteforsøg
Provedor de dados: 21
Autores: Rasmussen, Ilse A.
Intensiv bekæmpelse forår og efter høst samt i kartofler reducerede kvik, men ikke tidsler.
Tipo: Newspaper or magazine article
Palavras-chave: Crop combinations and interactions; Weed management.
Ano: 2006
URL: http://orgprints.org/10001/1/10001.pdf

Nyt fra de økologiske sædskifteforsøg - effekten af økologisk sædskifte begynder at vise sig
Provedor de dados: 21
Autores: Rasmussen, Ilse A.
Økologiske sædskifteforsøg - sædskifteeffekter
Tipo: Newspaper or magazine article
Palavras-chave: Production systems Crop combinations and interactions Weed management Crop husbandry Cereals; Pulses and oilseeds.
Ano: 2002
URL: http://orgprints.org/220/1/OJ02_271_6.doc

Nyt fra de økologiske sædskifteforsøg - Lige nu i marken
Provedor de dados: 21
Autores: 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

Hvad er en god vårbyg til økologisk jordbrug?
Provedor de dados: 21
Autores: 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

Sådan kan spildraps måske begrænses
Provedor de dados: 21
Autores: Rasmussen, Ilse A.
spildraps som ukrudt kan begrænses ved at lade jorden ligge urørt efter høst af raps eller ved en overfladisk harvning.
Tipo: Newspaper or magazine article
Palavras-chave: Production systems; Weed management.
Ano: 2001
URL: http://orgprints.org/244/1/produktion_2.jpg

15 years of research in organic food systems in Denmark – effects on the sector and society
Provedor de dados: 21
Autores: Rasmussen, Ilse A.; Halberg, Niels.
The Danish government has funded research in organic agriculture and food systematically since the establishment in 1996 of the Danish Research Centre for Organic Farming (DARCOF, now ICROFS, International Centre for Research in Organic Food Systems). A recent analysis of the effects of the first 3 organic research programs (DARCOF I-III, 1996-2000) (Halberg et al. 2012) was carried out with the objective to determine not only the impact of the research on the sector from farmers and advisors to industry and retail but also on society from government and regulation to NGO’s.
Tipo: Conference paper, poster, etc.
Palavras-chave: Research methodology and philosophy.
Ano: 2014
URL: http://orgprints.org/24018/1/24018_OWC14_IRA_15%20Years_MM.pdf

Special issue of Organic Agriculture — Organic 3.0
Provedor de dados: 21
Autores: Rasmussen, Ilse A.; Rahmann, Gerold; Løes, Anne-Kristin.
It is an honor to be able to present this special issue of Organic Agriculture: Organic 3.0 for the Organic World Congress in India 2017. In this issue, we have collected a number of papers relevant for the theme Organic 3.0. This special issue of Organic Agriculture about Organic 3.0 is published in connection to the science track “Innovative research for Organic 3.0” at the Organic World Congress in Delhi, India, November 2017. In the foreword to the proceedings (Rahmann et al. 2017), the challenges listed correspond well to those described and discussed in these five papers. The fact that the paper by Rahmann et al. (2016) that has been online in Organic Agriculture since December 2016, already after 6 months has been downloaded more than 3,000 times...
Tipo: Journal paper
Palavras-chave: Farming Systems; Research methodology and philosophy.
Ano: 2017
URL: http://orgprints.org/34787/1/10.1007%252Fs13165-017-0190-x.pdf

Økologi med alle midler
Provedor de dados: 21
Autores: 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

Den langsigtede effekt af kløvergræsgrøngødning og efterafgrøder på udviklingen af kvik og tidsler
Provedor de dados: 21
Autores: Rasmussen, Ilse A.; Thomsen, Henning C.; Askegaard, Margrethe; Olesen, Jørgen E.
Kløvergræs opformerer kvik, men reducerer tidsler. Efterafgrøder opformerer kvik, men ikke tidsler, sammenlignet med stubbearbejdning. Når man har problemer med rodukrudt, er det vigtigt at forstå, hvordan sædskifte og andre kulturforanstaltninger påvirker rodukrudtet, både på kort og langt sigt. Desværre findes der kun få data for den langsigtede effekt af kløvergræs som grøngødning og efterafgrøder på rodukrudt. I det økologiske sædskifteforsøg (Askegaard et al. 2004), som blev anlagt i 1996, har vi fulgt udviklingen af især kvik og tidsler frem til nu, og det giver os mulighed for at udtale os om betydningen af de forskellige faktorer.
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop combinations and interactions; Weed management.
Ano: 2006
URL: http://orgprints.org/7923/1/7923_paper.pdf

Ukrudtets udvikling i de økologiske sædskifteforsøg.
Provedor de dados: 21
Autores: 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

Regulering af ukrudt
Provedor de dados: 21
Autores: Rasmussen, Ilse A.; Melander, Bo; Rasmussen, Karsten; Rasmussen, Jesper.
I økologisk plantedyrkning er ukrudtsreguleringen baseret på et samspil mellem forebyggelse og bekæmpelse, hvor forebyggelse spiller en langt større rolle end i den konventionelle dyrk-ning. I korn og andre tætsåede afgrøder er forebyggelsen den væsentligste komponent i ukrudtsreguleringen, hvorimod det er den direkte bekæmpelse, der udgør grundlaget for dyrk-ning af rækkeafgrøder så som gulerødder, løg, roer og kartofler. Den økologiske ukrudtsregu-lering kendetegnes ved kompleksitet, da der dels anvendes mange forskellige metoder, og dels anvendes metoder med langsigtede effekter i dyrkningssystemet. Formålet med denne artikel er at give overblik over de anvendte metoder.     Artiklen er opbygget således at der først er et afsnit om behovet for...
Tipo: Report chapter
Palavras-chave: Weed management.
Ano: 1997
URL: http://orgprints.org/254/1/5.PDF

Resultater med efterafgrøder i økologiske forsøg – hvordan kan disse resultater udnyttes på økologiske og konventionelle bedrifter
Provedor de dados: 21
Autores: Askegaard, Margrethe; Rasmussen, Ilse A.; Olesen, Jørgen E.
Efterafgrøder kan reducere udvaskningen af næringsstoffer og derved virke positivt på både miljø og udbytte i en efterfølgende afgrøde. Men efterafgrøder skal anvendes med omtanke. Valget af efterafgrøde og hyppigheden hvormed de anvendes i et givent sædskifte bør tilpassses jordtype, gødningsniveau og sædskiftets afgrøder.     Det langvarige økologiske sædskifteforsøg giver mulighed for at sammenligne effekten af efterafgrøder på forskellige jordtyper. Den procentvise reduktion af N-udvaskningen og den udbyttemæssige effekt på efterfølgende afgrøder faldt med stigende lerindhold i jorden.     På Foulum var der i starten af sædskifteforsøget mere ukrudt i sædskifterne med efterafgrøder end uden efterafgrøde hvor der kunne strigles i afgrøderne, men brug af...
Tipo: Conference paper, poster, etc.
Palavras-chave: Nutrient turnover.
Ano: 2004
URL: http://orgprints.org/3331/1/3331.doc

Organic Eprints – helping research results go to work
Provedor de dados: 21
Autores: Rasmussen, Ilse A.; Jensen, Allan Leck; Willer, Helga.
Research results regarding organic food and farming from Europe have become easily accessible – and so can results from the rest of the world. The Open Access archive Organic Eprints (www.orgprints.org) has developed since the start in 2002 so that it now includes more than 14,000 items, has 27,000 registered users and more than 200,000 visits per month. The archive is open for all to use and registered users can deposit their research publications from refereed journals as well as non-refereed sources. Organisations, research facilities, research programmes and projects are also presented in the archive. Organic Eprints is the largest database in the world with publications about Organic Agriculture &amp; Food Systems research. It can be utilized for...
Tipo: Conference paper, poster, etc.
Palavras-chave: Education; Extension and communication Research methodology and philosophy.
Ano: 2014
URL: http://orgprints.org/24032/1/24032_OWC14_IRA_OrgPrints_MM.pdf

Computer model for simulating the long-term dynamics of annual weeds
Provedor de dados: 21
Autores: Rasmussen, Ilse A.; Holst, Niels.
A simulation model of the population dynamics of annual weeds and how it is affected by crop rotation, cultivation practices and weed control was presented by Rasmussen et al. (2002). The model aims to predict the development of a certain weed species in order to plan crop rotation and cultivation practices to minimise the risk of proliferation. The model does not predict the exact number of weeds expected to be found in a certain year or crop, but rather the general development over a number of years. It included the most important processes of the weed life cycle: seed survival in the soil, seed placement in soil after tillage, seed germination depending on soil depth, time of year and tillage and weed physiological development. The component describing...
Tipo: Conference paper, poster, etc.
Palavras-chave: Weed management.
Ano: 2004
URL: http://orgprints.org/3933/1/3933.doc

Organisation of organic agriculture research in Denmark - background, use of knowledge syntheses, analysis of results
Provedor de dados: 21
Autores: Rasmussen, Ilse A.
The presentation gives the history and background of ICROFS (International Centre for Research in Organic Food Systems, previously DARCOF), introduces the concept of knowledge syntheses and reports on the analysis of results and impact of the first 15 years of research in organic agriculture in Denmark
Tipo: Conference paper, poster, etc.
Palavras-chave: Technology transfer; Research communication and quality.
Ano: 2014
URL: http://orgprints.org/27934/2/27934.pdf

Ukrudt i økologiske kornsædskifteforsøg
Provedor de dados: 21
Autores: 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

Følfod og agertidsel
Provedor de dados: 21
Autores: Rasmussen, Ilse A.
Først og fremmest er det jo vigtigt at forstå hvorfor rodukrudt er et problem, som er langt sværere at tackle end frøukrudt.   I løbet af vækstsæsonen opsamler rodukrudt næring i rødder eller udløbere. Dette betyder at de er meget hurtige til at spire efter vinteren eller efter jordbearbejdning, og at disse spirer er langt mere konkurrencedygtige overfor afgrøden, end hvis det drejede sig om frøukrudt – de har simpelthen et større lager af næring at trække på. Det betyder også at efter mekanisk bekæmpelse, hvad enten det er afslåning eller jordbearbejdning, der bryder rødder/udløbere i stykker, spirer de hurtigt frem igen. De fleste spredes i marken ved udløbere eller vandrette rødder, og alle kan spredes med maskiner. For de flestes vedkommende kan selv...
Tipo: Conference paper, poster, etc.
Palavras-chave: Weed management.
Ano: 2006
URL: http://orgprints.org/7929/1/7929.pdf

Crop production and N leaching in arable organic farming
Provedor de dados: 21
Autores: Olesen, Jørgen E.; Askegaard, Margrethe; Rasmussen, Ilse A.
The possibilities for increasing grain yields and reducing N leaching losses in organic ce-real production through manipulation of crop rotation design were investigated in a field experiment on different soil types in Denmark from 1997 to 2000. Three experimental fac-tors were included in the experiment in a factorial design: 1) proportion of grass-clover and pulses in the rotation, 2) catch crop (with and without), and 3) manure (with and with-out). Three four-course rotations were compared (Table 1). Two of the rotations had one year of grass-clover as a green manure crop, either followed by spring wheat or by winter wheat. The grass-clover was replaced by winter cereals in the third rotation. Animal ma-nure was applied as slurry in rates corresponding...
Tipo: Conference paper, poster, etc.
Palavras-chave: Cereals; Pulses and oilseeds.
Ano: 2003
URL: http://orgprints.org/1809/1/B0071.doc

Index beregner hvor godt økologisk vårbyg konkurrerer med ukrudt
Provedor de dados: 21
Autores: Rasmussen, Ilse A.; Hansen, Preben Klarskov.
Kornafgrøder og –sorter har forskellig evne til at undertrykke ukrudt. Dette skyldes blandt andet sortens evne til at skygge for lyset og optage vand og næringsstoffer. For sorter med en samlet god konkurrenceevne gælder at:    de er langstråede   de har kraftig bladmasse gennem vækstsæsonen   de har en hurtig fremspiring og vækst    Denne viden er udnyttet til at beregne et konkurrenceindeks af sorten overfor ukrudt. De fleste forsøg vedrørende disse forskelle er gennemført under konventionelle forhold, hvor niveauet af næringsstoffer er højt, og ukrudt og andre skadevoldere bekæmpes kemisk.    Under økologiske forhold vil der oftest være en lavere og mere varierende forsyning med næringsstoffer. For at afklare om dette har en betydning for...
Tipo: Journal paper
Palavras-chave: Crop health; Quality; Protection Crop combinations and interactions Weed management.
Ano: 2005
URL: http://orgprints.org/5917/1/5917.PDF

The dynamics of Cirsium arvense and Elytrigia repens in long-termed organic crop rotation experiments
Provedor de dados: 21
Autores: 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

Organic Agriculture 3.0 is innovation with research
Provedor de dados: 21
Autores: Rahmann, Gerold; Ardakani, M. Reza; Boehm, Herwert; Canali, Stefano; Chander, Mahesh; David, Wahyudi; Dengel, Lucas; Erisman, Jan Willem; Galvis-Martinez, Ana C.; Hamm, Ulrich; Kahl, Johannes; Köpke, Ulrich; Kühne, Stefan; Lee, Sang Beom; Løes, Anne-Kristin; Moos, Jan Hendrik; Neuhoff, Daniel; Nuutila, Jaakko; OLOWE, VICTOR; Oppermann, Rainer; REMBIAŁKOWSKA, EWA; Riddle, Jim; Rasmussen, Ilse A.; Shade, Jessica; Sohn, Sang Mok; Tadesse, Mekuria; Tashi, Sonam; Thatcher, Alan; Uddin, Nazim; von Fragstein und Niemsdorff, Peter; Wibe, Atle; Wivstad, Maria; Wenliang, Wu; Zanoli, Raffaele.
Organic agriculture can and should play an important role in solving future challenges in producing food. The low level of external inputs combined with knowledge on sustainablity minimizes environmental contamination and can help to produce more food for more people without negatively impacting our environment. Organic agriculture not only includes farming as a production practice but it also includes processing, trade and consumption. Nevertheless, Organic agriculture must always evolve to overcome emerging challenges. Science-based knowledge attained through dedicated research is required to strengthen organic food and farming as a means to solve future challenges. In 2010, a global discussion about Organic 3.0 was initiated to address current problems...
Tipo: Journal paper
Palavras-chave: "Organics" in general Farming Systems Values; Standards and certification World Environmental aspects History of organics Knowledge management.
Ano: 2017
URL: http://orgprints.org/31279/1/Rahmann%20et%20al%202017.pdf

Nye og bedre sædskifter
Provedor de dados: 21
Autores: Rasmussen, Ilse A.; Askegaard, Margrethe; Olesen, Jørgen E.
Havre og rug erstatter hvede i forsøgssædskifte på sandjord.
Tipo: Newspaper or magazine article
Palavras-chave: Crop combinations and interactions Cereals; Pulses and oilseeds.
Ano: 2001
URL: http://orgprints.org/259/2/OJ01_238_9.jpg

D.4.4: Plan for continuation of the knowledge platform
Provedor de dados: 21
Autores: Kata, Gócs; Rasmussen, Ilse A.; Moeskops, Bram; Padel, Susanne; Micheloni, Cristina; Willer, Helga.
This deliverable is part work package 4 of the OK-Net Arable Horizon 2020 project, which started on 1 March 2015 and finished on 28 February 2018. The aim of OK-Net Arable is to promote and exchange knowledge among farmers, farm advisers and scientists with the objective to increase productivity and quality in organic arable cropping all over Europe.  Within the 3-year project, a knowledge platform was created (farmknowledge.org) to provide access to a wide range of tools and resources, that can help to improve organic production. While, the platform was launched in October 2016, it was platform was continuously improved during the course of the project and tools were added until the end of the project. Setting up the farmknowledge platform was a success....
Tipo: Report
Palavras-chave: Crop husbandry; Knowledge management.
Ano: 2018
URL: http://orgprints.org/36334/1/OK_Net_Arable_D4.4_17_May.pdf

Integrating Physical and Cultural Methods of Weed Control – Examples from European Research
Provedor de dados: 21
Autores: Melander, Bo; Rasmussen, Ilse A.; Barberi, Paolo.
Increasing concerns about pesticide use and a steadily increasing conversion to organic farming have been major factors driving research in physical and cultural weed control methods in Europe.   This paper reviews some of the major results achieved with non-chemical methods and strategies especially adapted for row crops (e.g. corn, sugar beet, onion, leek, and carrot) and small grain cereals (e.g. barley and wheat). In row crops, intra-row weeds constitute a major challenge and research has mainly aimed at replacing laborious hand weeding with mechanization. A number of investigations have focussed on optimising the use of thermal and mechanical weeding methods against intra-row weeds, such as flaming, harrowing, brush weeding, hoeing, torsion weeding...
Tipo: Journal paper
Palavras-chave: Weed management.
Ano: 2005
URL: http://orgprints.org/7911/1/Melander_et_al._%282005%29.pdf

Sædskifteforsøg skifter retning
Provedor de dados: 21
Autores: Rasmussen, Ilse A.; Askegaard, Margrethe; Olesen, Jørgen E.
Det økologiske sædskifteforsøg ændres, så det er de samme sædskifter der gennemføres på alle 3 lokaliteter. Behandlinger, der hverken har fået gødning eller efterafgrøde siden 1996 omlægges til konventionelle.
Tipo: Newspaper or magazine article
Palavras-chave: Crop combinations and interactions; Composting and manuring.
Ano: 2006
URL: http://orgprints.org/10002/1/10002.pdf

Erfaringer med kvikbekæmpelse på Jyndevad Forsøgsstation
Provedor de dados: 21
Autores: Rasmussen, Ilse A.; Thomsen, Henning C.; Melander, Bo.
Kvikbekæmpelse på sandjord
Tipo: Conference paper, poster, etc.
Palavras-chave: Cereals; Pulses and oilseeds Weed management Air and water emissions.
Ano: 2004
URL: http://orgprints.org/3935/1/3935.pdf

Strategic Research and Innovation Agenda for Organic Food and Farming
Provedor de dados: 21
Autores: Beck, Alexander; Cuoco, Eduardo; Häring, Anna Maria; Kahl, J.; Koopmans, Chris; Micheloni, Cristina; Moeskops, Bram; Niggli, Urs; Padel, Susanne; Rasmussen, Ilse A.
TP Organics is the European Technology Platform for organic food and farming, and for low-input agriculture. Established in 2008, it brings together small and medium-sized enterprises, larger companies, farmers, researchers, consumers and civil society organisations involved in the organic value chain from production, input and supply, to food processing, marketing and consumption. It identifies research and innovation needs and communicates them to policy-makers. The aim is to leverage the organic sector’s contribution to sustainable farming and food production. Since 2013, TP Organics is officially recognised by the European Commission as one of 40 European Technology Platforms (ETPs).    TP Organics published its first Strategic Research Agenda in 2009....
Tipo: Report
Palavras-chave: Farm economics; Farming Systems; Markets and trade.
Ano: 2014
URL: http://orgprints.org/28777/1/2998.pdf

OK-Net Arable online knowledge platform
Provedor de dados: 21
Autores: Rasmussen, Ilse A.; Jensen, Allan Leck; Jørgensen, Margit Styrbæk; Kristensen, Helene; 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/32524/1/OK-Net%20Arable_2017_Rasmussen_final%20conference%20%28002%29.pdf

Nye resultater med bekæmpelse af følfod og tidsler
Provedor de dados: 21
Autores: 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

Instruction on How to Submit a Full Paper Submission in Organic Eprints for the 4th African Organic Conference 2018
Provedor de dados: 21
Autores: Rasmussen, Ilse A.
For submitting papers to the fourth African Organic Conference (4th AOC) to be held on November 5 - 8, 2018 in Cameroon, the Organic Eprints Archive will be used (www.orgprints.org). Accepted papers will be made available at the Archive as open and searchable online proceedings after they are accepted. You can find the papers and proceedings from the 3rd AOC here.  These guidelines explain the most important steps that need to be taken for submitting a paper to Organic Eprints, including screenshots with explanations.
Tipo: Conference paper, poster, etc.
Palavras-chave: "Organics" in general.
Ano: 2018
URL: http://orgprints.org/32772/1/How%20to%20submit%20a%20paper%20for%204th%20AOC%202018.pdf

Presentation of Organic Eprints
Provedor de dados: 21
Autores: Rasmussen, Ilse A.
Presentation at training for the Productivity and Growth in Organic Value-chains (ProGrOV) project
Tipo: Teaching resource
Palavras-chave: Technology transfer; Research communication and quality.
Ano: 2011
URL: http://orgprints.org/19429/4/19429.pdf

Nyt fra de økologiske sædskifteforsøg - Lige nu i marken
Provedor de dados: 21
Autores: Rasmussen, Ilse A.
Økologiske sædskifteforsøg - høstudbytte og rodukrudt
Tipo: Newspaper or magazine article
Palavras-chave: Crop combinations and interactions Weed management Cereals; Pulses and oilseeds.
Ano: 1999
URL: http://orgprints.org/243/1/OJ99_200_8.doc

Strategier for ukrudtsbekæmpelse i økologisk vinterhvede
Provedor de dados: 21
Autores: Rasmussen, Ilse A.
Ukrudt kan være et stort problem og reducere udbyttet af økologisk dyrket vinterhvede. Ukrudtsharvning kan skade hveden når den udføres om efteråret, og kan give utilstrækkelig effekt mod oprette ukrudtsarter med pælerod når den udføres om foråret. Forsinket såning af vinterhvede fra sidst i september til først i oktober har tidligere vist sig at kunne reducere ukrudtsmængden når der ikke udførtes ukrudtsbekæmpelse. En forsøgsrække blev gennemført med niveau af mekanisk ukrudtsbekæmpelse, såstrategi (tidlig hhv. sen såning eller falsk såbed), rækkeafstand (normal, ca. 12 cm eller stor, ca. 24 cm) og ukrudtsbekæmpelse (ubehandlet, mekanisk eller herbicid). To forsøg blev udført på marker med højt ukrudtstryk med en  høj forekomst af oprette ukrudtsarter,...
Tipo: Conference paper, poster, etc.
Palavras-chave: Weed management Cereals; Pulses and oilseeds.
Ano: 2001
URL: http://orgprints.org/246/1/18PVK.PDF

Anlæggelse af forsøg på Jyndevad Forsøgsstation
Provedor de dados: 21
Autores: Thomsen, Henning C.; Rasmussen, Ilse A.
Video og billedserie fra anlæg af forsøg med mekanisk bekæmpelse af følfod
Tipo: Web product
Palavras-chave: Weed management.
Ano: 2008
URL: http://orgprints.org/14698/1/okologgen.htm