山东省烟台地区是我国苹果的集中产地,苹果生产是烟台地区整个农业生产的重要组成部分。从六十年代开始,烟台地区的苹果生产,进入了以加强综合管理、努力提高单位面积产量为重点的发展时期。进入七十年代以来,又开始了以提高科学管理水平,努力 Yantai, Shandong Province, China is the focus of production of apples, apple production is an important part of the entire agricultural production in Yantai. Since the 1960s, apple production in Yantai has entered a period of development focused on strengthening integrated management and improving output per unit area. Since entering the seventies, it has started to raise the level of scientific management and work hard