1、 Cultivation time

Generally, it is mainly planted in autumn, preferably in cloudy and rainy weather. This environment is most suitable for planting. Heilongjiang Province in the northeast can be from July to August, and the greenhouse can be in early September. This season will recover quickly, which is more conducive to the winter and the yield

2、 Cultivation method

1. Select the appropriate seed varieties, remove the shriveled seeds, and only use the well-developed seeds, which can improve the probability of germination

2. Wrap the seeds in wet gauze, soak for about 24 hours, and put them in the refrigerator at low temperature for about 15 days

3. Pour it into warm water at 50-60 ℃, stir it constantly, soak it for 2-3 hours, scrub it slowly by hand, and put it under the condition of 25-30 ℃ to promote germination until 60-70% of it is exposed

4. Mix the humus soil with fine sandy loam, spray it with water, then sow the seeds, and cover it with 0.1cm fine soil. At a temperature of 25 degrees Celsius, seedlings can emerge in about 15-25 days, but there may be delays

5. Cover it with plastic film to ensure a warm environment. When real leaves grow, they can be transplanted