2. Soil preparation. Deep ploughing of greenhouse soil by 15 to 20 cm, combined with deep plowing of 3,000 kg of high-quality organic fertiliser and 25 kg of diammonium phosphate per acre as base fertilizer, and then a width of 1 to 1.2 meters.
3. Sow. Put enough water before sowing, mix the seed with appropriate amount of fine sand and spread it onto the surface of the mash, use the foot to press it or cover with a layer of dirt, and then cover the mulch.
4. Strengthen management. On the basis of pouring water, watering is not required before emergence, and sprouting can take place within 5 to 7 days. After the cotyledon was unearthed, the mulching film was removed for the first field weeding. When the two true leaves grow, the second time weeding and thinning, and chase the first time fertilizer, pouring a water, generally 10 kg of compound fertilizer after the top of the mu, combined with a second fertilizer every 15 days combined with watering, Mushi Compound fertilizer 5 kg, after each harvest once, top-dressing watered once, each time the application of compound fertilizer 5 to 10 kg per mu.
5. Harvest timely. The leek grows to 4 to 6 leaves, and the plant height is 10 to 15 cm. Pay attention to each time the income must be kept between large and small, leaving uniform, in order to increase production.
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