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栖霞县观里公社的梨树,分布在漩水河两岸的24个生产大队,计3040亩,已结果面积2500亩。1964年产梨780万斤,平均亩产3120斤,最高亩产20700斤,为解放前年产量的195倍,为合作化初期的4.2倍,较1963年增长21.9%,梨的好果率均达到95%以上。由于梨的产量、质量大幅度的增长和提高,从而有力地支援了国家建设,仅1964年就向国家提供梨果730万斤,占总产量的93.6%。观里公社自解放以来即开始了梨树病虫害的防治工作,经初级社、高级社,特别是人民公社化以来,十几年的观察摸索,他们掌握了在每年不同的气候条件下,如何根据果树的物候期,来
Qixia Commune pear tree, distributed in the swirling river across the 24 production brigades, accounting for 3040 acres, the result area of 2500 acres. In 1964, the output of pears reached 7.8 million catties, the average yield per mu was 3120 kg and the maximum yield was 20,700 catties, 195 times the annual yield before liberation, 4.2 times that of the initial cooperation and 21.9% more than that of 1963. The good fruit rate of pears reached above 95. Thanks to the substantial increase and increase of pears’ output and quality, the country’s construction has been strongly supported. Only in 1964, 7.3 million kg of pears were supplied to the country, accounting for 93.6% of the total output. Since the liberation of the commune, the commune has started the prevention and control of pests and diseases of pears. Since the communes of junior and senior peasants, especially the people’s communes, more than ten years of observation and exploration have taken place, and they have mastered how, under different climatic conditions each year, Phenology of fruit trees, come