1、 Seedling raising time

The suitable time is spring and autumn, and the ground temperature is about 13 ℃. Therefore, spring can be carried out from January to February, and autumn can be carried out from July to August. The specific time can be adjusted in time according to the climate. If it is planted in the greenhouse, it can be carried out as long as the temperature is suitable

2、 Seedling raising method

1. Seed selection: seeds should be selected before seedling cultivation. If the temperature in the area is relatively high, varieties with better heat resistance should be selected. On the contrary, if the temperature is low, choose the one with good cold resistance

2. Soak the seedlings in cold water for 3-15 minutes, and then soak them in warm water for 3-15 minutes. Then put it in a damp cloth, place it at 28 ℃, rinse it for 4 hours, and then plant it when it germinates

3. Soil preparation: the planting land should have good light, the soil should be loose, and the thickness of the matrix should be about 5cm. After preparing the soil, apply some fertilizer in the soil to make the soil have an appropriate amount of nutrients

4. Sowing: cover some soil after processing the seed, and then cover it with film, which can keep warm and moisturize. After it grows for a period of time, it will grow seedlings