Results of research in soil tillage in 1994

catch cropping cereal crops compactage du sol conservation des sols crop yield cultivo intermedio cultivos de cereales cultural methods cycling estructura del suelo fertilisation fertilizer application field experimentation hortalizas (plantas) labranza leaching lessivage du sol malezas mauvaise herbe mode de culture pastizal sembrado prairie artificielle rendement des cultures rendimiento de cultivos seedbed preparation soil compaction soil conservation soil structure solanum tuberosum sown pastures structure du sol suecia sweden tillage travail du sol urban areas vegetable crops weeding weeds zonas urbanas zone urbaine