[Rye cropping: What to do in case of decreasing intervention?]

alemania allemagne beneficio bruto brassica napus cannabis sativa commercialisation costos costs cultivation cultivo cultivos de invierno culture d'hiver germany gestion gross margins hordeum vulgare linum usitatissimum lupinus management marge brute marketing mercadeo pisum sativum politique de soutien pratique culturale profitability rendement rendimiento rentabilidad secale cereale subsidies subsidios subvention support measures winter crops yields