Characteristics of nitrogen fertilizer application in early rice variety 甬籼57

In order to obtain high yield of 甬籼57, the optimum nitrogen application rate should be above 14.0kg/667m2. If single attack is high, the high nitrogen application rate of pure nitrogen is about 18.0kg/667m2. Stable production and efficiency, the application rate of pure nitrogen is better at 14.0kg/667m2; the nitrogen application method is based on the ratio of base, seedling and panicle to 2:0:1. The fertilization method is the best. When applying pure nitrogen 14.0kg/667m2, the nitrogen application method with ratio of base, seedling and panicle to 2:1:0 is also ideal.

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