It is best to choose varieties with purple flowers or white flowers, which are rich in fragrance. Seeds should be treated before sowing. Generally, it should be soaked in 50℃ hot water for 2 minutes, and constantly stirred in the middle to avoid burns. After being taken out and cleaned, it can be drained for sowing. You can germinate without accelerating germination, as long as the temperature is right. Water the seedbed before sowing, and then sow directly. Generally, 6 grams of seeds are sown in a square meter seedbed, and multicast can be reduced appropriately. Covering soil below 1 cm does not affect seedling emergence. After covering the soil, you need to water it to keep the seeds combined with the soil. After that, straw and straw can be covered for heat preservation and moisture retention.
Post-planting management: since there is no root system after planting, water it once a day to ensure the survival of seedlings, and some roots will be produced about 1 week, which can be watered once every three days to promote the rooting of seedlings. After about half a month, the slow-growing seedlings grow normally and the roots are normal, so you can watch the soil dry before watering it, and water it irregularly. Topdressing once a month after planting, combined with watering application, topdressing once a month in the future.
The planting site should choose soil with good water and fertilizer conservation performance, or sandy loam soil, which requires a slope that receives sunlight but will not be exposed to direct sunlight for a long time.
The method of growing shallots at home is similar to that of growing vegetables. Seeds are directly sown on soil, and then covered with soil about 1cm, and covered with film. The balcony temperature in autumn and winter is about 10℃ ~ 20℃. A flowerpot or a foam box can be used, as long as a small hole that can leak water is made at the bottom of the container, so that excess water can be discharged smoothly.
When the shallots grow to about 20cm, it means that they grow well. At this time, we should pay attention to maintaining soil nutrients and moisture, and proper watering and fertilization can accelerate its growth. If there is a 2 cm ~ 3 cm white stalk at the bottom, it can continue to grow.