[Winter rape: Recommendations of varieties and sowing rates for your site]

abonos abonos fosfatados abonos nitrogenados abonos potasicos abonos sulfurados alemania allemagne brassica napus calidad cultivos de invierno culture d'hiver date de semis efficiency eficacia engrais engrais potassique escarda fecha de siembra fertilizers fongicide fungicidas fungicides germany herbicidas herbicide herbicides hybride hybrids magnesium fertilizers metalaxil metalaxyl nitrogen fertilizers oil crops phosphate fertilizers plant protection plantas oleaginosas potash fertilizers protection des plantes pure lines quality recubrimiento de semillas rendement rendimiento seed dressing sowing date sulphur fertilizers traitement phytosanitaire semences variedades varieties weed control winter crops yields