However, the problem of farm size and scale should not be ignored when evaluating the potential room for improving sustainability of family farming (Tavernier and Tolomeo, 2004; Woodhouse, 2010). Dogliotti et al. (2006) showed that farm resource endowment has a strong impact on possibilities for sustainable development of vegetable farms in south Uruguay. We confirmed the hypothesis that by re-designing the farm systems within their current context and resource endowment farm system performance could be significantly improved. However, for many farms with low availability of land,machinery and water for irrigation, further progress to desirable higher levels of income, labour productivity and soil quality will not be possible without actions taken at the regional level by farmers’ unions and rural development offices to improve access of family farmers to production resources, markets, information and knowledge.