城乡收入差距已经受到社会的广泛关注,在现阶段,劳动力选择性转移和化肥的有效施用量对于城乡收入差距的缩小具有明显的促进作用,而农业机械的投入并不能有效地缩小城乡收入差距。本文将以劳动力选择性转移、农业技术进步为出发点,探究两者对城乡收入差距的影响,并对三者之间的关系进行检验分析。 The income gap between urban and rural areas has been widely concerned by the society. At this stage, the selective transfer of labor force and the effective application of chemical fertilizers have obviously promoted the narrowing of the income gap between urban and rural areas. However, the input of agricultural machinery can not effectively reduce the income gap between urban and rural areas. This article will take the selective transfer of labor force and agricultural technological progress as the starting point to explore the impact of the two on the income gap between urban and rural areas and test the relationship between the three.