1. Soak leek seeds in warm water at about 55 ~ 60℃/kloc-0 ~15 minutes, then wash them with clear water, and take them out and dry them in the shade for later use.
2. Select a 50-hole seedling tray, spread a layer of coconut bran on the bottom of the tray, then put sterilized organic substrate or prepared nutrient soil, sow about 6 seeds per tray, then cover with a layer of substrate or soil with a thickness of about 0.5-1.0cm, water, and keep the temperature at 15-25℃, so that seedlings can emerge in about one week.
3. You can also dig leek roots that have grown for two or three years directly from the garden, leaving only the root system about 1.5 ~ 2.0cm. After washing the root soil, soak it in potassium permanganate 1.500 times for disinfection, then rinse the roots with clear water and plant them in a pot.
4. After emergence, put pots and other containers for potted plants into the substrate or nutrient soil, leaving a space of about 3-4 cm on the upper part, and then plant every 5-6 leek seedlings in the potted plants as a cluster with a spacing of about 4 cm. Then water it, and it will take about one to two weeks to slow down the seedlings.
5. leek seedlings grow to a height of about 30 cm, and they can be cut off when they grow yellow leaves. This is called stubble raising. After two or three stubbles, leeks will enter the high-speed growth period, and then they can be cut and eaten.
6. Don't use any chemical fertilizers and pesticides during the whole growth period, just use some kitchen waste such as rice washing water or leftover milk and beer, and topdressing once every two weeks, not too much or too much at a time, and it should be combined with watering.