Basic functions of plow

Soil tillage machinery whose main function is to turn soil and has the functions of loosening and breaking soil. There are mainly types such as share plows, disc plows, and rotary plows. Ancient agricultural countries such as Egypt, China, and Persia had primitive wooden plows pulled by oxen three to four thousand years ago. The European plow was invented in the 8th century. In 1847, the disc plow was patented in the United States. In 1896, the Hungarians created the rotary plow. The plow is the most widely used farming machinery in the world. The disc plow has a strong ability to cut grass roots, but its covering performance is not as good as that of the blade plow. The soil plowed by plows and disc plows is generally not finely broken and flat enough to meet the requirements for sowing, and subsequent operations such as harrowing and compaction must be carried out. In addition, plowing fields with share plows and disc plows requires a lot of traction, and the maximum traction generated by the tractor is limited by the adhesion performance of the tires, and its power cannot be fully utilized. Since the end of the 19th century, many countries and regions have been exploring new farming tools and created various driven soil farming machines, such as rotary tillers, rotary hoes, etc. Their outstanding advantage is that they can obtain a very loose and finely divided seed bed at one time, but the productivity is low, the energy consumption is high, and the function of burying stubble, weeds and fertilizers is not as good as the share plow.
Since the first half of the 20th century, Americans have begun to promote low-till and no-till methods, using chisel scarifiers for subsoiling, instead of plowing the soil, and using disc harrows to shallowly plow the surface to eliminate stubble. The use has decreased.