前言 碭山酥梨丰产、品質好、果大、多汁、味甜、質地松脆,为我省重要特产之一,国内外都享有盛名。过去,由于管理粗放,病虫为害猖撅,产量一向很低。解放后,在党的领导下,經过恢复和发展,产量和品質都逐年上升。为了进一步总結提高梨树栽培管理經驗,研 Preface Mount Dasan pear yield, good quality, large fruit, juicy, sweet, crisp texture, as one of the important specialty in our province, both at home and abroad have enjoyed a good reputation. In the past, due to extensive management and rampant pests and diseases, the output has been very low. After the liberation, under the leadership of the party, after recovery and development, output and quality have been increasing year by year. In order to further summarize the experience of pear cultivation management, research