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. 2022 Aug 25;12:14490. doi: 10.1038/s41598-022-18773-w

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© The Author(s) 2022, corrected publication 2022

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(a) fertilisation rate, N fertiliser applied per unit of cropland (kgN/ha); (b) amount of synthetic N fertiliser used (kg) per capita; (c) synthetic N fertiliser use: yearly growth rate for different world regions. Data source: FAOSTAT (see also Supplementary Table S4). Reference period: 1961–2018, 5-year moving averages.