After the peanut blooms, it begins to grow a reddish-purple ovary stalk with a pointed tip like an aerial root, which extends into the soil and forms a tiny cream-colored pod (peanut pod) at its tip. The seeds of the fruiting needle peanut elongate and then grow toward the ground to send the ovary into the soil;

After reaching a certain depth, the ovary begins to grow horizontally to form the pods. Dark conditions are needed at this point. The pods themselves have a certain absorption function, and all the calcium needed for their development is absorbed by the pods directly from the soil.

The difficulty of getting the fruit needles into the soil is related to the location of the flower's implantation on the plant. The flowering part is too high, or because the stem and branches are too weak, easy to change position in case of wind and rain, thus affecting the angle of the fruit needle to the ground, into the soil is more difficult. Creeping type peanut fruit needle because of the close to the soil surface, the angle is appropriate, into the soil pod rate is the highest.

Expanded Information:

Peanuts are grown in different parts of China with other crops that are annual, Two years, three years, two or three years of cultivation system, so that there are spring peanuts, wheat set peanuts, summer peanuts and fall peanuts, Guangdong, individual areas can also be planted in winter peanuts.

Developed part of the peanut planting in the rice field, the formation of peanut - rice or rice - peanut crop rotation system. In some places, the reproductive season is longer, rice varieties with the right mix, but also with double-season rice rotation.

Guangdong, Fujian and other planting fall peanut collection pods to stay for the second year of spring seeding, you can improve the seedling rate, to ensure that the seedlings full, strong seedlings, the local commonly known as "turn the fall to stay in the seed" or "inverted seed spring". Because of the underground pods, require loose sandy soil, gravel soil or sandy loam, in order to facilitate the fruit needle into the soil, pod development and harvest.