解放以后,尤其是无产阶级文化大革命以来,随着农业学大寨运动的深入开展,农田基本建设和农业机械化水平的不断提高,我国北方广大地区的耕作改制发展很快,这对于促进粮食大幅度增产和“扭转南粮北调”发挥了显著作用。如北京市近年来大抓耕 Since the liberation, especially since the Great Proletarian Cultural Revolution, with the deepening of the Dazhai Campaign in agriculture and the continuous improvement of farmland capital construction and agricultural mechanization, farming and reorganization in the vast northern part of our country have been developing rapidly. This is of great significance to the promotion of a substantial grain output Increasing production and “reversing the south grain north” have played a significant role. Such as Beijing in recent years big grab