In practice, Biodynamic farming meets the organic standard including the prohibition of synthetic chemical fertilizers, pesticides, herbicides and fungicides, but then it goes much further. Emphasis is on the generation of farm inputs out of the living dynamics of the farm itself, rather than being imported from the outside. Dependence on imported materials for fertility and pest control is reduced. Water conservation is considered. Farms are required to maintain at least 10% of total acreage as a biodiversity set-aside. Riparian zones, wetlands, grasslands, and forests: all are considered an integral part of the life of the farm. Specially prepared medicinal plants, minerals, and composted animal manures help increase the vitality of the grapes grown and further anchor each individual farm in time and place.