[Soil and plant cultivation for Middle-Norway. The Kvithamar days 1998]

agricultura alternativa agriculture alternative alternative agriculture bovin calidad cattle conduite de la culture crop management crops cultivation cultivo cultivos deficiencia de minerales diffusion de la recherche diffusion of research ganado bovino grazing horticultura horticulture manejo del cultivo mineral deficiencies noruega norway pastizales pastoreo pastures plant production plante de culture pratique culturale quality variedades varieties