Peanut, also known as groundnut, is native to South America. Peanuts are grown in more than 65,438+000 countries in the world, with Asia being the most common, followed by Africa. According to Chinese peanut literature, the cultivation history is about 65,438+000 years earlier than that in Europe. Peanut is known as "plant meat", with oil content as high as 50%, excellent quality and fragrant smell. In addition to food, it is also used in printing, dyeing and paper industry. Peanut is also a traditional Chinese medicine, which is suitable for malnutrition, spleen and stomach imbalance, cough and asthma, and lack of milk. Peanut cultivation and management techniques are also relatively strong.