中文摘要：

粮食主产区是我国农业发展的重心,而公共投资是推动粮食主产区农业生产率增长最主要的驱动力。因此,本文以吉林省为例运用Malmquist指数模型定量评估粮食主产区的农业生产率,并进一步应用向量误差修正（VEC）模型分析了公共投资与农业生产率之间的长期均衡关系,实证检验了公共投资对农业生产率的驱动效应。

英文摘要：

The grain-producing area is the key for the development of Chinese agriculture.Moreover, public investment has become the main driving power to promote the growth of agricultural productivity in the grain-producing areas.Therefore,this paper takes Jilin province as an example to estimate agricultural productivity of the grain-producing areas with the Malmquist index model.Furthermore,we analyze the long-term equilibrium relationship between public investment and agricultural productivity and give an empirical test to the driving effects of public investment on agricultural productivity growth with the VEC model.