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This study was conducted to realize the synergistic improvement of high efficiency nitrogen utilization and wheat economic yield, where two treatments of traditional farmer fertilization (TFF) and nitrogen fertilizer precision management (NFPM) were set up. Under the condition of NFPM, the grain yield of wheat increased by 7.9%∼11.6%, nitrogen application rate decreased by 30.2%∼44.8%, nitrogen uptake efficiency increased by 43.4%∼63.3%, nitrogen apparent utilization efficiency increased by 30.7%∼68.7%, and nitrogen agronomic efficiency increased by 50.6%∼81.3%. It confirmed that NFPM based on the characteristics of wheat fertilizer demand can significantly reduce the amount of nitrogen fertilizer input and achieve a higher yield level, which provides a theoretical basis for the realization of the synergistic goal of nitrogen reduction and efficiency increase.

Nitrogen fertilizer management on wheat yield and nitrogen utilization