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Which countries overapplied nitrogen without gains in crop yields?
Shown is how much nitrogen pollution countries caused compared with how much they reduced their yield gaps relative to directly neighboring countries. Positive values (yellow to red) indicate a country overapplied nitrogen without gains in yield. This is based on yield gap and nitrogen data published between 2012 and 2015.
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Wuepper et al. (2020)
Attribution: Wuepper et al.
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