METABOLIC RIFT: AGROCHEMICAL BIOPOLITICS AND THE ENCLOSURE OF NIGERIAN NUTRITIONAL SOVEREIGNTY

Abstract

Nigeria’s agricultural trajectory can be understood through the lens of a “metabolic rift”—a structural disjunction between soil ecological health and human nutritional needs. Since the 1970s, agricultural policy has largely prioritized increased caloric output through synthetic intensification, contributing to what may be described as a “caloric mirage,” in which rising yield volumes obscure a gradual decline in soil quality and nutritional value. This paper examines the political and economic mechanisms underpinning the erosion of Nigeria’s nutritional sovereignty, with particular attention to agrochemical dependency and the privatization of seed systems. Drawing on Metabolic Rift Theory and Foucauldian concepts of biopower, the study interprets national dietary management as a site of technocratic governance, though not necessarily reducible to deliberate population control. Methodologically, the study adopts a longitudinal qualitative historical approach (1970–2025), supported by secondary datasets and comparative analysis across Nigeria’s six geopolitical zones. Findings suggest that the widespread adoption of NPK-based fertilization has contributed to a measurable decline in micronutrient density—estimated between 23% and 40% for key minerals such as zinc and iron—despite increases in crop yields. This imbalance manifests unevenly across regions. In parts of Northern Nigeria (e.g., Kaduna, Kano, Sokoto), high agricultural output coexists with persistent malnutrition, reflecting a production–nutrition disconnect. In the South (e.g., Enugu, Cross River), dietary transitions are increasingly associated with rising obesity alongside micronutrient deficiencies, often described as “hidden hunger.” Additionally, the Plant Variety Protection Act (2021) has accelerated the formalization of seed ownership, raising concerns about reduced access to traditional seed systems and long-term implications for agricultural biodiversity. Addressing these challenges requires a shift toward agroecological approaches that emphasize soil health, biodiversity, and the integration of indigenous knowledge systems, alongside more balanced metrics that account for both yield and nutritional quality.