Reproduce with seeds. Spring sowing is mostly used in the north, and autumn sowing is suitable in the south. Drill: 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 surface of the ditch 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.
2. Tian Tuan management
Control water at seedling stage, and squat seedlings with height 12- 15cm to prevent excessive growth. 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.
3, pest control
Gray mold is harmful to leaves. Spraying 20% fenxiuning EC or 800-1000 times 70% thiophanate methyl before onset. Spraying or irrigation with 500 times solution of 75% chlorothalonil wettable powder is harmful to pseudostems, bulbs, roots, leaves and buds.
4. Harvest and storage
Leek 1 leaf can be harvested early, and the center of 4 leaves can be harvested. After root culture and fertilization, when the plant grows to 5 leaves, the second leaf can be harvested. You can also harvest 5-6 knives continuously as needed, which is rarely used.
Extended data
Chinese chives
It is a perennial vegetable of Liliaceae, which has strong adaptability, cold resistance and heat resistance and is cultivated all over the country. Many areas in the south can be produced all year round. In the north, although the aboveground part dies in winter, the underground part goes into dormancy, and the topsoil germinates and grows after thawing in spring.
1. temperature: leek is cool, cold-resistant and heat-resistant. The suitable temperature for seed germination is above 65438 02℃, and the growth temperature is between 65438 05℃ and 25℃, and the underground part can bear lower temperature.
2. Illumination: moderate illumination intensity and strong negative resistance. However, the light is too weak, the accumulation of photosynthetic products is less, the tillers are few and weak, the yield is low, and it is easy to premature aging; Too much light, too high temperature, too much fiber and poor quality.
3. Moisture: The suitable air relative humidity is 60-70%, and the soil humidity is 80-90% of the maximum field capacity.
4 Soil nutrition: It has strong adaptability to soil texture, and the suitable pH is 5.5-6.5. The demand for fertilizer is large and the fertilizer tolerance is strong.
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