1992年,是山东省棉铃虫大发生的一年,高密县棉花普遍减产30%,棉农损失较大,而该县李仙村农民种植的2200亩棉花却获得了单产皮棉70.5公斤的好收成,比全县平均单产47公斤高出23.5公斤。大灾之年,李仙村为什么能夺得丰产增收?通过调查,该村干部群众一致认为,实行植保社会化服务,统一进行机械化承包防治是棉农丰产 1992 was the year when the cotton bollworm occurred in Shandong Province. Cotton production in Gaomi County was generally reduced by 30% and cotton farmers lost a great deal. However, 2,200 mu of cotton planted by farmers in Lixian Village in the county received a good harvest of 70.5 kg of cotton lint per unit, Than the county average yield of 47 kg higher than the 23.5 kg. The disaster year, Li Xiancun why won the yield increase? Through the survey, the village cadres and the masses agreed that the implementation of social protection of plant protection, unified mechanized contracting prevention and control is the cotton yield