Summary
<List> <ListItem><ItemContent> ● Progress on nitrogen management in agriculture is overviewed in China. </ItemContent></ListItem> <ListItem><ItemContent> ● 4R principles are key to high N use efficiency and low N losses in soil-crop systems. </ItemContent></ListItem> <ListItem><ItemContent> ● A new framework of food-chain-N-management is proposed. </ItemContent></ListItem> <ListItem><ItemContent> ● China’s success in N management provides models for other countries. </ItemContent></ListItem></List> Since the 1980s, the widespread use of N fertilizer has not only resulted in a strong increase in agricultural productivity but also caused a number of environmental problems, induced by excess reactive N emissions. A range of approaches to improve N management for increased agricultural product
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