Participatory development of no-tillage systems without herbicides for family farming: the experience of the center-south region of parana

摘要

It is currently estimated that 40 million hectares worldwide arecultivated through no-tillage systems (Derpsh, 1998). Small familyfarms account for less than 50,000 ha, half of them located in SouthAmerica's Southern Cone(Wall, 1998). Many hypotheses have beenoffered to explain why so few small farmers have Adapted to thismethod. The most simplistic ones relate this limited adoption tosmall farmers' traditionlism And to their rejection of innovation.Others point to the low technological development of animal-drawnEquipment needed for this technology or the low educational level offamily farmers.