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京郊大兴县庞各庄镇南里渠村的果农更新思想，转变观念，给 110亩老梨树嫁接了我国最新引进的“丰水”、“新世纪”、“新星”等 6个优良品种梨，成为该镇第一个高接换头新品种梨示范园。 南李渠村的 110亩梨树，已栽种 23年，由于树龄老化，品种杂劣，导致经济效益较低，?
Peasants in Nangliqu Village, Panggezhuang Town, Daxing County, Beijing, renewed their ideas and changed their minds. They grafted 110 pear-shaped pears with 6 fine varieties such as “Feng Shui”, “New Century” and “Nova” , Becoming the town’s first high-takeover new varieties Pear Demonstration Garden. The 110-mu pear tree in Nanliqu Village has been planted for 23 years. As a result of the aging of the tree species and the poor variety, the economic benefits are low.