Results of research in soil tillage in 1996

catch cropping cereal crops compactage du sol conservation des sols crop yield cultivation cultivo 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 pratique culturale projet de recherche rendement des cultures rendimiento de cultivos research projects seedbed preparation soil compaction soil conservation soil structure solanum tuberosum sown pastures structure du sol suecia sweden tillage travail du sol vegetable crops weeding weeds