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Excess nitrogen from croplands

"Excess nitrogen" is the difference between nutrient inputs (from fertilizers, manure, and fixation from legumes) and the amount harvested in crop material. This
represents nitrogen that are lost to the environment and can create ecological imbalances on ecosystems and in water bodies.

0No dataNitrogen mining0 t100,000 t250,000 t1 million t10 million t25 million t
World

Source: West, Gerber, Engstrom, Mueller, Brauman, Carlson, Cassidy, Johnston, MacDonald, Ray & Siebert (2014). Leverage points for improving global food security and the environment.
Science.