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我场从七十年代初期开始探索梨树高接换种技术,在不断总结经验教训、改进技术,同时学习外地经验的基础上,八十年代初期,我们采取了“多头长枝高接换种技术”,改造了我场原梨树品种园,将十年生左右的劣种、低产、病虫(枝干健壮无病虫害的)树,高接换种80多株,换上金水2号、金水1号等高产优质品种,获得了高接后第二年一般株产15～25公斤,最高达39公斤;第三年一般株产35～40公斤,最高产98公斤,取得了显著的经济效益。1987～1988年全场已高接换种2000多株,现长势良好,预计1989年大多数植株司投产。此法比挖掉重新建国要快3～4年,节省经费约5～6倍。
My field from the early seventies began to explore high pear exchange technology, continuous sum up experience and lessons, improve technology, while learning from the field experience, based on the early eighties, we adopted the “ Technology, ”transformed my field of original pear varieties, about 10-year-old inferior species, low yield, pests (branches of robust pest-free) trees, over 80 kinds of high accession exchange, replaced by Jinshui 2, 1 and other high yield and high quality varieties, access to high take the second year of the general strain of 15 to 25 kg, up to 39 kg; the third year of the general strain of 35 to 40 kg, the maximum yield of 98 kg, and achieved significant economic benefits . From 1987 to 1988, there was a high level of exchange for more than 2000 strains in the audience. It is now in good growth. It is expected that most of the plants will be commissioned in 1989. This method is faster than digging to rebuild the country 3 to 4 years, saving about 5 to 6 times.