“苹果梨优质丰产综合技术开发”,是1986年列入国家和吉林省“星火计划”暨投标项目。开发示范面积为一万亩(实际668.35公顷)、119.182株,带动面积为四万亩,均处于27～30年盛果期树木。要求在三年内,示范园单产达1万公斤/公顷,一、二等果率70％,好果率90％,三年累积经济收益 “Apple pear high-yield comprehensive technology development”, was included in 1986 and Jilin Province, “Spark Program” and tender. Development demonstration area of ​​10,000 mu (actual 668.35 hectares), 119.182 strains, led to an area of ​​40,000 mu, are in the 27 to 30 years of fruit trees. Demands in three years, demonstration park yields up to 10,000 kg / ha, the first and second-rate fruit rate of 70%, good fruit rate of 90%, three years of cumulative economic benefits