What are the iron farming tools and oxen plowing tools in the Spring and Autumn and Warring States period

The intention of this question is to corroborate each other through written records on paper and archaeological discoveries underground, so that students can recognize an important invention of our ancestors more than 2,000 years ago - piercing the nose ring of oxen - and infer from this that oxen ploughing was further popularized during the Warring States period. During the Spring and Autumn Period, China already had iron farming tools. Iron plows play a significant role in improving the efficiency and quality of plowing, but the power required for iron plows is large and difficult for manpower to bear, and the use of animal power is an urgent problem. Cattle are strong and powerful, which is ideal for plowing, but they are not easy to handle when they lose their temper. The ancestors after a long time of observation, found that the cow's nose bone is the key part of the control of cattle, as long as the copper ring through the cow's nose bone, the cow will obediently listen to the call. People were able to drive the oxen, and in the Warring States period, the most important use of the oxen was plowing the fields.

The use of oxen for plowing is a sign that human society has entered the age of civilization. Cattle plowing technology began in the Spring and Autumn and Warring States period of the Iron Age, the emergence of iron farming tools and the use of cattle plowing technology, greatly saving labor, "expanding the scale of production, ? promote the development of social productive forces, promote the change of the social system at that time, prompting the transformation of the slave society to the feudal social system.

The technology of oxen plowing began with a single-yoke plow (driving two oxen), and later with a double-yoke plow (driving one ox). In addition to one ox pulling the plow and two oxen pulling the plow, after plowing the mulch and fill and level the field to break up the soil, are completed with animal power, which is the ox pulling the "harrow", also known as the "importance". "One side of the harrow has teeth that can break up the soil, and the other side of the harrow can be pursed to bury the seeds and level the field. To date, rural areas are still in use.