How to cultivate celery in plastic film arch shed? How should it be managed?

When celery is unearthed, increase the number of watering, reduce the amount of watering, and keep the soil moist. When celery grows to 5 cm and 10 cm, apply water-soluble fertilizer once each to promote strong seedlings. When new leaves grow after planting, the roots should be cut off properly to make the new roots proliferate. Squatting can improve the physical and chemical properties and biological characteristics of nutrient soil, reduce bacterial infection and promote the rooting and germination of celery. When celery is covered with soil, it can be lightly watered 1 time, 1-2 days to sprout. After that, keep the soil moist and take less irrigation and frequent irrigation as the principle. The "great cold" in the twenty-four solar terms of the lunar calendar is the coldest season, and the outdoor temperature is mostly below 10 degrees. At this time, cold waves frequently go south, which is the coldest period in most parts of China, with strong wind and low temperature.

It is best to use well water, because well water is cold and has the effect of reducing soil temperature. (2) Water management: celery likes temperature, and the whole seedling stage should be irrigated with small water to keep the soil moist. Sprinkle water with a watering can after sowing and before emergence; Irrigation 1 time after emergence, followed by irrigation 1 3 ~ 4 days, is the key to greenhouse vegetable management in winter. It is to cover the ground with plastic film to increase the heat capacity of the soil; Cover the shed film with a straw curtain, and then cover it with a layer of plastic.

165438+ 10 In winter, the temperature and ground temperature decrease day by day. At the beginning of 165438+ 10, plastic film should be covered 10 days before transplanting to increase the temperature of plastic film shed and promote the growth of celery. During the whole growing period, both ends of the plastic film greenhouse were not covered and ventilated. According to the growth situation of celery, if it is listed before the Spring Festival, it has strong cold tolerance, especially at seedling stage, and can withstand short-term low temperature of-10℃. Using this characteristic, we can overwinter in the shed at seedling stage, and turn to normal growth with the increase of temperature after spring. Therefore, the management of celery in greenhouse is relatively easy. Celery is a super-high yield vegetable. If we choose planting season and strengthen fertilizer and water management, there is no special weather. An acre of celery can produce more than 10,000 kilograms of clean vegetables, and some people with higher planting techniques can reach 20,000 kilograms.