Sowing time
The growth of scallion seedlings is afraid of heat. The most suitable temperature for sowing is 15 ~ 20 ℃, so it is suitable for autumn sowing in the middle and late September p>
Sowing preparation
Before sowing, the substrate should be disinfected. The best way is to fry it in a pot. Of course, the premise is that you don't have cleanliness, or expose it to the sun for a period of time. If the culture soil is purchased directly, disinfection is not necessary and can be used directly p>
Budding
The seed of scallion is not big, and germination before sowing is helpful to seed germination p>
Soak the seeds in warm hot water (similar to the temperature of face washing water) for 12 ~ 24 hours until the seeds swell after absorbing water p>
Sowing method
With tweezers or toothpicks, put the soaked and dried seeds on the soil surface one by one, then cover it with about one centimeter of soil and water it p>
Curing after sowing
After sowing in autumn, you are likely to encounter a cold wave. You can wrap the flowerpot with plastic film to keep warm and moisturize. After the seedlings are unearthed, uncover the film, and let the seedlings bask in the sun before 9 o'clock and after 3 o'clock in the afternoon, otherwise the growth of the seedlings will be very thin p>
After most of the seeds are out of the seedlings, they will start to grow seedlings in Xi, cutting off the sick and thin seedlings, so that the remaining seedlings have a certain growth space. When most of the seedlings grow more than three leaves, they can be planted in pots p>