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雷州林业局的革命职工,为了加速雷州林区的建设,遵循毛主席关于“有了优夏品种,即不增加劳动力、肥料,也可获得较多的收成”的教导,从当地实际出发,自力更生,先后选出优良母树共4,000多株,采用自选、自育、自造的方法进行单栋选育品比试验,经过
In order to speed up the construction of Leizhou forest area, the revolutionary workers of Leizhou Forestry Bureau should follow the guidance of Chairman Mao on the teaching that “with excellent summer varieties, that is, more harvests can be obtained without increasing labor force and fertilizer,” we should make our own efforts based on local conditions , Has selected a total of more than 4,000 excellent mother trees, using self-selection, self-cultivation, self-made method of single-breeding ratio test, after