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| Registros recuperados: 41 | |
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| Boelt, B.; Clausen, D.; Gislum, R.; Hansen, L.M.. |
| Kvælstof er et værdifuldt næringsstof for opnåelse af et højt frøudbytte, men også i relation til justering af væksten i udlægsmarken. Desværre har mange frøavlere begrænset adgang til kvælstof – dels på grund af en kvælstofnorm, som er fastsat under den økonomisk optimale værdi og dels på grund af begrænset adgang til husdyrgødning på økologiske planteavlsbedrifter. I Forskningsprogram frøavl arbejdes med udvikling af en behovsbestemt gødningsstrategi for at opnå en bedre udnyttelse af den til rådighed værende kvælstofmængde. Imidlertid tyder igangværende forsøg på, at kvælstof findes i ’alternative kilder’ såsom frøgræshalm og grøngødningsafgrøder, men kan de udnyttes i frøavlen? En anden supplerende kvælstofkilde er en øget anvendelse af hvidkløver... |
| Tipo: Journal paper |
Palavras-chave: Composting and manuring Breeding; Genetics and propagation Pasture and forage crops. |
| Ano: 2001 |
URL: http://orgprints.org/457/1/okt2001side7_9.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. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Production systems. |
| Ano: 2004 |
URL: http://orgprints.org/9076/1/9076.doc |
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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.. |
| 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: Conference paper, poster, etc. |
Palavras-chave: Production systems. |
| Ano: 2005 |
URL: http://orgprints.org/7994/1/7994.doc |
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| Boelt, B.. |
| Arealet med hvidkløver til frø var 3853 ha i 2004, hvilket er det største areal siden 1978, og generelt er udviklingen af de danske areal positiv. Følgerne af den afkoblede EU-støtte forventes at være neutral for hvidkløverfrøproduktionens vedkommende. Hos vores største konkurrent, New Zealand, har en øget mælkeproduktion medført en vigende frøproduktion af hvidkløver. Den new zealandske mælkeindustri har stor succes med eksport af tørmælk til Asien, og mælkeproducenterne presser planteavlerne i området Canterbury Plains, hvor hovedparten af New Zealands frøproduktion er placeret. New Zealand er dog fortsat verdens største producent af hvidkløverfrø. En del af produktionen er i øjeblikket under udflytning til Australien. |
| Tipo: Journal paper |
Palavras-chave: Production systems. |
| Ano: 2005 |
URL: http://orgprints.org/8008/1/8008.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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| 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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| Deleuran, L.C.; Boelt, B.. |
| A major problem in organic grass seed production on arable farms is to provide for a sufficient nitrogen supply. A nitrogen-fixing crop may be able to cover the nitrogen requirement - wholly or partly. However mixed cropping of a grass seed and a nitrogen-fixing crop is expected to reduce the establishment of the seed crop, especially for species that require a long establishment period. One way to achieve a satisfactory establishment of the seed crop can be to introduce an intervening year for cutting forage between cover crop harvest and seed harvest. This will enhance tillering, since the light supply for the undersown grass is increased after each cut. However excessive biomass will hinder drying of the crop at maturity and therefore the growth of the... |
| Tipo: Journal paper |
Palavras-chave: Breeding; Genetics and propagation Pasture and forage crops. |
| Ano: 2002 |
URL: http://orgprints.org/459/1/newsletter34page5_7.pdf |
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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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| Registros recuperados: 41 | |
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