我们古老的中华民族有着悠久的农业文明史 ,但在原始农业时期 ,由于生产力水平低 ,在土地的利用上 ,我们的祖先缺乏人为控制土地生产力的经验。因此 ,只有凭借土地自身的生产能力进行耕作利用。“”字就是这种原始农业生产状况的反映。但是 ,由于时间久远 ,我们无法再现当时 Our ancient Chinese nation has a long history of agricultural civilization. However, in the primitive agriculture period, due to the low level of productivity, our ancestors lacked the artificially controlled experience of land productivity in land utilization. Therefore, only by virtue of the land’s own productive capacity for farming use. The word “” is a reflection of the status of this primitive agricultural production. However, due to the passage of time, we can not reproduce the time