Soil structure - a key factor in erosion from direct drilled soil - Alakukku, Laura; Turtola, Eila; Nuutinen, Visa; Aura, Erkki; Ventelä, Anne-Mari (de, 2006)
Keywords: Ka; maan rakenne; huokoset; eroosio; suorakylvö; macroporosity; earthworm burrow; clay soil; sandy soil; ploughing