Learning from Agricultural Heritage? Lessons of Sustainability from Italian “Coltura Promiscua”

Agricultural heritage is gaining increasing importance as a repository of lessons to be learned for more sustainable agriculture in the future. Among the forgotten European agricultural heritage, the Italian grapevine “coltura promiscua,” which integrates agroforestry and intercropping, survives only in a few regions in the form of relics. Based on geographic, historic, agricultural literature published on the subject between 16th and 20th century with a focus on North eastern Italy, on previous fieldwork research, and on the analysis of recent candidacies to the Italian National register, this contribution identifies five principles that can be considered today as lessons of sustainability in agriculture: vertical intensification, spatial multifunctionality, resilience through crop diversity, labour-intensive production, personal/familiar/community attachment. Taken together, these principles describe a new rationality that seems to adapt to changed global and local conditions and can suggest new strategies to design new sustainable agricultural systems. The research suggests that sustainability principles can be found both by studying relics of agriculture heritage, and by carefully reading the literature that described them in the past, well before the concept of sustainability itself appeared in the scientific debate. Finally, this paper highlights some difficulties in practicing these lessons in modern agroforestry systems and suggests directions for future research.