Abstract:

The effects of different nutrient management modes on yield and nitrogen use efficiency of early rice were studied in field-plot experiments. The results showed that the application of nitrogen fertilizer could significantly increase rice yield, compared with black treatment, the early rice increased by 41.06%-76.90%. different nitrogen management significantly influenced by the mode on yield, high yield and high efficiency model and the super-high-yield compared with farmers mode high mode, the yield were greatly increased by 16.62%-25.41%, and the nitrogen use efficiency also could be improved in varies degrees. While improving the effective ear of unit area, but also promote the accumulation of nitrogen, phosphorus nutrients.