Spatially differentiated nitrogen supply is key in a global food–fertilizer price crisis

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dc.creatorSnapp, Sieglinde S.
dc.creatorSapkota, Tek Bahadur
dc.creatorChamberlin, Jordan
dc.creatorCox, Cindy M.
dc.creatorGameda, Samuel
dc.creatorJat, Mangi Lal
dc.creatorMarenya, Paswel Phiri
dc.creatorMottaleb, Khondoker Abdul
dc.creatorNegra, Christine
dc.creatorSenthilkumar, Kalimuthu
dc.creatorSida, Tesfaye Shiferaw
dc.creatorSingh, Upendra
dc.creatorStewart, Zachary
dc.creatorFantaye, Kindie Tesfaye
dc.creatorGovaerts, Bram
dc.date2023
dc.date2023-07-20T20:34:29Z
dc.date2023-07-20T20:34:29Z
dc.date.accessioned2026-06-27T13:18:38Z
dc.descriptionA regional geopolitical conflict and sudden massive supply disruptions have revealed vulnerabilities in our global fuel–fertilizer–food nexus. As nitrogen (N) fertilizer price spikes threaten food security, differentiated responses are required to maintain staple cereal yields across over- and underfertilized agricultural systems. Through integrated management of organic and inorganic N sources in high- to low-input cereal production systems, we estimate potential total N-fertilizer savings of 11% in India, 49% in Ethiopia and 44% in Malawi. Shifting to more cost-effective, high-N fertilizer (such as urea), combined with compost and integration of legumes, can optimize N in N-deficient systems. Better targeted and more efficient N-fertilizer use will benefit systems with surplus N. Geospatially differentiated fertilization strategies should prioritize high-N fertilizer supply to low-yield, N-deficient locations and balanced fertilization of N, P, K and micronutrients in high-yield systems. Nationally, governments can invest in extension and realign subsidies to enable and incentivize improved N management at the farm level.
dc.formatapplication/pdf
dc.identifierhttps://hdl.handle.net/10568/131233
dc.identifier.urihttp://hdl.handle.net/123456789/56122
dc.languageen
dc.publisherSpringer
dc.rightsOpen Access
dc.sourceSnapp, S., Sapkota, T. B., Chamberlin, J., Cox, C. M., Gameda, S., Jat, M. L., Marenya, P., Mottaleb, K. A., Negra, C., Senthilkumar, K., Sida, T. S., Singh, U., Stewart, Z. P., Tesfaye, K., & Govaerts, B. (2023). Spatially differentiated nitrogen supply is key in a global food–fertilizer price crisis. Nature Sustainability, 6(10), 1268–1278. https://doi.org/10.1038/s41893-023-01166-w
dc.subjectnitrogen
dc.subjectfood security
dc.subjectfertilizers
dc.subjectfarming systems
dc.subjectyields
dc.subjectprices
dc.titleSpatially differentiated nitrogen supply is key in a global food–fertilizer price crisis
dc.typeJournal Article

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