Abstract:Effects of three nitrogen levels(0, 105, 150 kg/ha) and two fertilizer mixture proportions(100% CRN and 70% CRN+30% FRN) on maize yield, dry matter accumulation, nitrogen accumulation, translocation and nitrogen use efficiency were studied by field experiments. The results showed that maize yield was improved significantly by nitrogen fertilizer application, and increased by 10.4%~28.2%. Yield was the highest in the treatment of N150 kg/ha. The maize yield of the treatment of 0% CRN+30% FRN was higher than that of the treatment of 100% CRN under the same condition of nitrogen level. Nitrogen fertilizer application improved Dry matter accumulation and nitrogen accumulation was significantly improved by nitrogen fertilizer application in different growing stages, and dry matter accumulation and nitrogen accumulation increased with the increment of nitrogen levels. Nitrogen agronomic use efficiency and recovery efficiency enhanced with the increment of nitrogen levels, and partial fertilizer productivity of nitrogen fertilizer reduced with the increment of nitrogen levels. Nitrogen recovery efficiency, agronomic use efficiency and partial fertilizer productivity of the treatment of 70% CRN+30% FRN was higher than the 100% CRN treatment under the same condition of nitrogen level.