According to iron farm tools and iron plows, what kind of social changes will be caused by the application and popularization of these tools and technologies at that time?

During the Warring States period, the extensive use of iron farm tools was the development of productive forces, and the extensive use of iron farm tools and the popularization of Niu Geng greatly improved labor efficiency, made individual business possible, and also damaged the original well field system more seriously, leading to the emergence of private ownership of land, which led to the state-owned ownership of land by slave owners and gradually replaced by feudal private ownership of land. At that time, the rulers of various countries followed the historical trend and popular support, and began to reform, develop the feudal economy, establish the rule of the landlord class, and feudal slavery.