国以民为本,民以食为天。古往今来,颠扑不破。人类的历史就是人类向自然索取食物的历史。人类在创造文明的同时也加速地创造了本身。于是。土地——这个永远只能减少而又养育着世界上万物的资源,与被它养育的一直在加速膨胀的人类之间发生了矛盾。解决这个矛盾的唯一办法只能是让单位面积的土地提供越来越多的粮食。人类用于农业生产的工具也就从过去的一个磨利了的石块发展到现在的拖拉机、联合收割机和计算机。因为生产工具是提高产量的最 National people-oriented, people eat food for the day. Since ancient times, irresistible. Human history is the history of human beings seeking food from nature. At the same time that mankind is creating civilization, it also accelerates itself. then. Land - a contradiction that can only ever reduce but recuperates the resources of the world in all its aspects, has been contracted by the nourishing, accelerating population. The only solution to this conflict can only be to provide more and more food per unit of land. The tools humans use for agricultural production have also evolved from a friable piece of stone in the past to tractors, combine harvesters and computers today. Because production tools are the most productive