1, from peanut sowing to emergence, is the seedling germination period, generally 5- 15 days; The seedling stage is from the appearance of seeds to the opening of the first flower; The period from seedling stage to the emergence of young fruit with the head of a chicken is the flowering and falling needle stage; The period from full fruit appearance is pod-bearing period; Then the fruit will be full when it is ripe.

2. Peanut, also known as groundnut, belongs to dicotyledonous plants. People also call peanuts longevity fruit, Longevity Bean, Peanut Bean, Peanut, Ground Pine and Ground Fruit. It originated in the United States, and the history of peanut cultivation in China is one hundred years earlier than that in Europe. Peanut is a kind of nutritious food, which has health care function for human body.