Nitrogen use efficiency-a key to enhance crop productivity under a changing climate.

Front Plant Sci · 2023 · PMC10151540 · PMID 37143873

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a decreasing trendno p-value reported

Globally, the majority of countries are facing a decreasing trend of NUE (from 68% to 47%) over a period of five to six decades (1960–1970) ( Lassaletta et al., 2014 ).

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