Carrots are rich in vitamins, sugars, and mineral salts such as calcium, phosphorus, and iron, which have anti-cancer, anti-cancer, and beauty care effects. However, it is difficult to cultivate carrots in off-season cultivation. The yield is low and the benefits are high. l, select the appropriate varieties and gargle, timely sowing summer harvest carrot sowing date is appropriate to the middle and early March, the latest no later than the end of March, too late will affect the yield and quality, it should be selected winter strawberry or winter nursery gargle or other leaves After harvesting the vegetables, the greenhouses were filled with fertilized water after deep turning and fertilization, and then the gullies were opened at intervals of 2 m. The gutters were 15-20 cm deep. Basal fertilizer is generally 100kg per mu (used after maturity), superphosphate 50kg, high-quality compound fertilizer 50kg, and another mu is applied with phoxim 250g combined with water to prevent and control underground pests. 2. Selecting good varieties for germination sowing The varieties of carrots suitable for summer planting include the United States “short-sweet carrots, Japan†and “new Kurodaâ€, etc. To speed up seedlings to promote seedlings, they can be soaked with germination by soaking in 40°C warm water for 2 hours. After the water control, the temperature is kept at 25°C during the day and at 15～18°C at night, and the germination is performed at a temperature of 15～18°C during the day, during which the water is rinsed once a day, and after 5 days, the germination is finished when more than 60% of the seeds are whitened. Use 0.6-0.75kg seed weight, cover the soil after 1.5cm, cover the plastic film, close the greenhouse, generally 7 to 10 days after the emergence of seedlings 3. Strengthen the cultivation and management of Qimiao, select the early morning to remove the film, and gradually increase the greenhouse vents, keep the daylight The maximum temperature does not exceed 30° C. When two true leaves are selected, the seedlings are weeded in the morning to keep the seedlings at a distance of 10 to 12 cm, the soil is dry and wet, and the 8 to 9 leaves are combined with water to recover the roots, and the general mu application of urea is 10 kg. Add potassium sulfate 3kg, human waste 2000-2500kg, water to the field relative water holding capacity of 70-80%, before harvest 3 to 4 weeks with potassium dihydrogen phosphate 0.5 ~ 1.0kg water 100 ~ 150kg for extra-root fertilizer. Wang Chang can use 15% Pacloazole powder 1500 Spraying, locust damage can be used to remove the locust net net of 8-l0ml/mu and add 50~100kg of water for spray prevention and control 4. Collect spring sowing carrots planted in early March in batches in batches and pick them in batches according to market conditions in mid-June. Harvest water once a day before harvest, US “short sweet carrots†are tapered, and harvesting is easier.
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