 I think one of the major damaging effects that mechanised agriculture has on soil is structure. The soil on this whole land because of how it's been plowed and how the heavy machines that have gone over it, they've created very thick compaction layers and soil that's so heavily compacted that water and air can't properly penetrate through it. So what we were doing in the autumn was opening up the soil using a deep ripper like a 90 centimetre tines being pulled by a tractor and ripping through that very tough compaction layer partly so that water can actually penetrate down into the soil but also so that air can reach into those lower levels and you can start to get the it will waken seed but you get life can actually happen you know with the right kind of like aerobic life.