[Production of herbicide tolerant rape varieties in Denmark: A national preliminary report from EU-project FACTT (Familiarization with and Acceptance of Crops incorporating Transgenic Technology in modern agriculture)]

azote brassica napus cultivos de invierno cultivos de primavera culture d'hiver culture de printemps danemark date de semis denmark dinamarca fecha de siembra fertilisation fertilizer application fongicide fungicidas fungicides herbicidas herbicide herbicides nitrogen resistance to chemicals sowing date spring crops variedades varieties winter crops