Planting method of leek seeds

Soak leek seeds in warm water for 24 hours before sowing to accelerate germination, keep the soil moist after sowing, intertillage and weed after emergence, topdressing and watering, and pay attention to pest control in the later stage.

1, leek sowing date

Generally from late March to early May, spring sowing and summer sowing are suitable. Because leeks are perennial vegetables, autumn sowing is very suitable. Therefore, in Shandong, leeks can be planted in autumn after September.

2, soaking seeds to accelerate germination

4 ~ 5 days before sowing, put the seeds in warm water at about 30℃, remove the shriveled seeds and impurities floating on them after about 24 hours, wash them with cold water, take them out, use clean gauze as the inner layer and clean wet sack as the outer layer, and accelerate germination at 15 ~ 20℃. Rinse with clear water once a day during the germination period, and the buds will be exposed after 3 ~ 4 days, which can be used for sowing.

3. Planting management

According to the row spacing of 10cm, open a ditch with a depth of 2cm, scatter the seeds into the ditch and step on the border evenly. After sowing, water, keep the border surface moist, and prevent the border surface from hardening. After the seedling raising, sow according to the row spacing and plant spacing of 35cm× 10cm. In the field management of seedling stage, when the seedling height is 12- 15cm, control the water and squat the seedlings to prevent them from growing too fast. Generally, after transplanting, it should be watered three times continuously to slow down the seedlings. After the rain, timely intertillage and weeding, ridge tillage combined with topdressing, control watering and prevent the growth of green plants. Pests and diseases prevented botrytis cinerea from harming leaves. Spraying 20% triadimefon EC or 70% thiophanate-methyl 800-1000 times before onset. Phytophthora infestans that harm pseudostems, bulbs, roots, leaves and flower buds can be harvested early by spraying or irrigating roots with 500 times of 75% chlorothalonil wettable powder, and the fourth leaf core can be harvested. After root cultivation and fertilization, when the plant grows to five leaves, it can harvest the second leaf. You can also harvest 5-6 knives continuously as needed, which is rarely used.