Coming Out of the Foodshed: Phosphorus Cycles and the Many Scales of Local Food

Systems of food production and provision face a set of complex and interdependent challenges to sustainably meet current and future nutrition needs and minimize the negative social and ecological consequences of modern agriculture. Food system localization, often in the context of specific initiatives like farmers’ markets, are frequently put forth as a promising strategy for establishing more just food systems and agroecological production that relies on regional resources and in situ ecological processes rather than agrichemical inputs. Despite a significant literature on local food, there remain critical omissions in geographic inquiry, particularly analyses of scale in regard to food system localization. This article uses scale as an analytical lens to examine phosphorus fertility on farms participating in a farmers’ market network in New York City. Through a synthesis of biogeochemical analysis, semistructured interviews, and nutrient network mapping, the work charts the complex and often contradictory interactions of material and discursive scales in local food systems. The lens of scale reveals multiple narratives of sustainability, indicating both the great potential for agroecological phosphorus management and significant structural problems that undermine the project of food system localization. These findings argue for a more expansive approach to localization that acknowledges a mosaic of overlapping scalar processes in food systems and that the sustainability promise of food system localization requires interconnected sustainabilities in multiple places and at multiple scales. Key Words: agroecology, local food systems, phosphorus, scale, sustainability.