The rice root system plays an important role in the nitrogen uptake and utilization.In this article,we introduced the process of nitrogen uptake and assimilation and root characteristics in rice,and sum-marized the effect of root characteristics on nitrogen absorption and the regulation of nitrogen supply on root characteristics.The further research directions were discussed in terms of nitrogen uptake and utili-zation,root characteristics and nitrogen fertilizer interaction.This review may provide theoretical consider-ation for improving nitrogen uptake and utilization efficiency,and provide new insights for developing rice cultivars with high nitrogen efficiency.
riceroot characteristicsnitrogen uptake and utilizationnitrogen assimilation
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