Seed collection
Generally, this step will be carried out in late September or early October. When the shell turns yellow and wants to open, reduce the shell and handle together and don't put them in a place with good air flow to dry. After completion, thresh p>
Germination treatment
Be careful not to expose the seed to the sun, or its seed coat will be very hard. Because the seeds are post mature, the collected seeds must be further treated. We should put them in a place with low temperature and high humidity and wait for them to germinate. The seeds sown in spring must be treated at low temperature before they can grow. The seeds in autumn are generally buried in the ground mixed with wet sand and soil to keep them moist. Then they can be sown after being dug out in the next spring and soaked in warm water of 40 to 50 degrees for a day p>
Sowing method
The first is live broadcast in the open, around Qingming or from September to October. The first is to open the ditch and fix the hole. The depth of the ditch is 5cm, and the ditch bottom is also required to be loose and flat. Next, fill the hole with soil and fertilizer and cover it with about two centimeters of fine soil. At this time, you can sow seeds, five or six. After completion, we also need to fill and compact, and ensure the temperature and humidity. After waiting for about 20 days, seedlings can grow p>
The second is to raise seedlings by increasing temperature. This method is mainly to prolong its growth period. We can use plastic arch shed to increase temperature. At the beginning or middle of January, the seeds are sown and covered with fine soil. Warm water is sprinkled in the morning and evening every day, and the seedlings can grow in about a week. At this time, we still have to pay attention to its water and fertilizer without management p>