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| Registros recuperados: 41 | |
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| Boelt, B.; Deleuran, L.C.. |
| Der er krav om at al udsæd til anvendelse i økologisk jordbrug skal være produceret økologisk. Inden for en række arter – specielt grønsager – er økologisk udsæd ikke tilgængelig, så indtil videre er der dispensation for ovennævnte krav. I Forskningsprogram frøavl II er afprøvet økologisk frøproduktion af gulerod, blomkål og porre. Generelt er de opnåede resultater positive både, hvad angår udbytte og kvalitet. Specielt porre har vist sig som en særdeles robust kultur, medens der på Forskningscenter Flakkebjerg har været problemer med svampesygdomme i blomkålsproduktionen (knoldbægersvamp). I projektets sidste år er forskellige strategier mod knoldbægersvamp blevet afprøvet, men de endelige kvalitetsanalyser foreligger endnu ikke. |
| Tipo: Journal paper |
Palavras-chave: Production systems. |
| Ano: 2005 |
URL: http://orgprints.org/7768/2/7768.pdf |
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| Gislum, R.; Boelt, B.. |
| Results from field experiments in 2000 and 2002 showed that intercropping of perennial ryegrass and green manure legumes prolonged the time for nitrogen accumulation in the grass seed crop. The effect on the grass seed yield was dependent on the green manure legume species. However, using the intercropping technique it was possible to achieve seed yield at 1012 kg ha-1 in 2000 and at 829 kg ha-1 in 2000, which is very promising for the future organic seed production of perennial ryegrass. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Production systems. |
| Ano: 2005 |
URL: http://orgprints.org/7964/1/7964.doc |
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| Deleuran, L.C.; Boelt, B.. |
| A common assumption is that the quality of the seeds used in many developing countries is poor. Yet, the factors supporting this assumption are not specifically known. Many small farmers in developing countries keep a portion of own produced seed and are very much aware of its importance. However, due to often limited resources the seeds are not given the attention it needs in terms of production, preservation and utilisation. These factors sum up to an unsatisfactory seed quality leading to low agricultural production. In times of disaster, farmers end up selling or consuming all their seeds and for their next harvest they need to be able to purchase seeds. In many rural areas quality seeds are not available. When buying seeds, the farmers are in most... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Production systems. |
| Ano: 2005 |
URL: http://orgprints.org/7962/1/7962.doc |
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| Deleuran, L.C.; Boelt, B.. |
| Festulolium (X Festulolium) has shown a considerable yield potential as a fodder crop and as a direct effect the seed production area in Denmark has increased. The main aim for the present trial is a growing interest for festulolium in organic production systems and hence the requirements for organic produced seed. A 3-year study was conducted to determine the seed yield response in two different types of festulolium in respect to three seed rates (8, 12 and 16 kg ha-1) and three row spacings (12, 24 and 36 cm). The lolium type cv. Paulita was not affected by seeding rate or row spacing. In the tall fescue type cv. Hykor no significant difference in seed yields were found in respect to seeding rate but narrow row spacing 12 and 24 cm yielded more than 36... |
| Tipo: Journal paper |
Palavras-chave: Production systems. |
| Ano: 2009 |
URL: http://orgprints.org/9063/2/9063.pdf |
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| Boelt, B.. |
| Co-existence is defined as the farmers being able to choose between conventional, organic and genetically modified (GM) crop production, in compliance with the relevant legislation on labelling rules and purity standards. Genes of cultivated plants spread in time and space through pollen and seed dispersal, and in addition handling during transport and processing may also disperse seeds. The starting point in plant production is the seed. Consequently, suitable measures during cultivation, harvest, transport, storage, and processing are necessary to ensure co-existence in the supply chain of propagated seed. In crops with restricted production area such as hybrid oilseed rape and vegetables, seed production in confinement may serve as an instrument of... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Production systems. |
| Ano: 2006 |
URL: http://orgprints.org/9067/1/9067.doc |
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| Deleuran, L.C.; Gislum, R.; Boelt, B.. |
| Establishment methods have proven to be of major importance for grass seed production. The objective of this research was to test the effect of different sowing techniques on plant establishment and the subsequent seed yield. Perennial ryegrass (Lolium perenne L.) is used as the model grass due to its large importance in Danish agriculture. In a three-year trial six different methods of under-sowing of perennial ryegrass in a spring barley cover crop were employed. Perennial ryegrass was either sown directly at different depths within the spring barley (Hordeum vulgare L.) rows or placed 2, 6 or 12 cm from the spring barley rows. Results of dry matter yield indicate that the best establishment of the grass occurred when placing the grass 6 or 12 cm from... |
| Tipo: Journal paper |
Palavras-chave: Production systems. |
| Ano: 2010 |
URL: http://orgprints.org/9066/2/9066.pdf |
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| Boelt, B.. |
| Co-existence is defined as the farmers being able to choose between conventional, organic and genetically modified (GM) crop production, in compliance with the relevant legislation on labelling rules and purity standards. Genes of cultivated plants spread in time and space through pollen and seed dispersal, and in addition handling during transport and processing may also disperse seeds. Consequently, suitable measures during cultivation, harvest, transport, storage, and processing are necessary to ensure co-existence in the supply chain of propagated seed. With the increasing area of GM-crop production as well as in the number of crops in which GM-varieties are available the need for guidelines to ensure coexistence are becoming increasingly essential.... |
| Tipo: Other |
Palavras-chave: Production systems. |
| Ano: 2005 |
URL: http://orgprints.org/9095/1/9095.doc |
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| Boelt, B.; Deleuran, L.C.; Phelps, B.. |
| Until now commercial genetically modified (GM) crops – soy, corn, canola and cotton - and their products have not been successfully segregated from organic or conventional non-GM production systems. Where GM crops are grown, GM contamination may be inevitable. However, physical and legal control measures imposed before the introduction of GM crops may help protect organic standards, supply chain integrity, certification and client confidence, but this is not yet fully tested. IFOAM’s approach to its present position on GM crops may not be sustainable long term as several invasive technologies – GM organisms (especially pharma crops, animals and micro-organisms), nanoparticles, and food irradiation – all challenge organic standards and integrity |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Production systems. |
| Ano: 2005 |
URL: http://orgprints.org/7965/1/7965.doc |
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| Boelt, B.. |
| In the spring of 2002, the Danish Minister for Food, Agriculture and Fisheries initiated strategy work on the cultivation of authorised GM crops in Danish agriculture. The aim was to produce a Danish model for the co-existence of GM, conventional and organic crops in support of the free choice of consumers and to ensure development possibilities for new and existing agricultural production forms. Three groups were set up, that were assigned the task of presenting the scientific and legal problems as well as drawing up a proposal for a Danish co-existence model. These groups were the analysis group (working group), the legal group and the contact group. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Production systems. |
| Ano: 2005 |
URL: http://orgprints.org/7995/1/7995_abstracts.pdf |
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| Registros recuperados: 41 | |
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