Why should the traditional agricultural production mode develop to the modern production mode?

The first core of the development of human civilization is food production, and one of the purposes is how to produce more food with less manpower and less resources. This can feed more people and let more people engage in activities other than agriculture. Such as ancient handicrafts, commerce, modern industry, scientific research and so on. Conversely, the vigorous development of these industries will further improve the efficiency of agricultural production. For example, farm tools and waterwheels made by craftsmen in the past. Modern industry produces a large number of chemical fertilizers and agricultural machinery.