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为了提高杂交稻施肥效益，设置了不同施肥量试验，结果明确：Ⅰ杂交稻适宜的施肥量为每公顷N144～170kg、P63～75kg、K120～140kg；②适宜的施肥水平，形成了较大的库容量，增强了中后期的干物质生产力。
In order to improve the fertilization efficiency of hybrid rice, different fertilization experiments were set up and the results were clear: Ⅰ The suitable fertilization amount for hybrid rice was N144 ~ 170kg, P63 ~ 75kg, K120 ~ 140kg per hectare; ② The suitable fertilization level formed a large Library capacity, enhance the dry matter in the late productivity.