Greenhouse celery varieties and planting schedule

1. Variety selection

The celery varieties currently used for greenhouse production are Tianjin Shixin and South Glass Cui.

2. Time and method of growing seedlings

The sowing period is early or mid-July. Put the seeds in a cloth bag, soak them in cold water for 24 hours to remove the controlled dry water, hang them in a well or put them in a cellar (18-20℃) to accelerate germination, and sown after 2 to 3 days of whitening. The sowing borders should be selected in high-dry, well-drained plots, and 3000~4000kg of high-quality farmyard manure should be applied per mu. In order to prevent the rainy season from being exposed to the sun or heavy rain, a shade shed can be placed on the seedling borders, and the seedlings can be about half a month after the seedlings emerge. Removed. After the emergence of the seedlings, keep the soil dry and wet. Water a small amount of water every 3 to 4 days. In the middle of the seedling period, it can be combined with irrigation and topdressing with ammonium sulfate or ammonium nitrate at 10kg per mu.

3. Planting time and method

The planting time is mid or late August, but it can be advanced or delayed. Apply 5,000kg of high-quality agricultural fertilizer to acres of land preparation, deep turn into borders, plant 6-7 rows of one-meter borders, with a spacing of about 4cm.

4. Management after planting

Keep the soil moist, prohibit flooding, loosen the soil in time after slowing the seedling. Cover the greenhouse film in the middle and late October, and release the air when the temperature exceeds 28℃, and then reduce the volume of air release as the outside temperature drops. Top dressing is required in late September and late October. In the severe cold season, pay attention to heat preservation while reducing the frequency of irrigation and the amount of water, and drain the moisture in time after accumulation of water.

5. Harvest

Greenhouse celery adopts splitting, which means that the outer leaves of celery that have grown to a certain height are split. Generally, 2 to 4 leaves are harvested from each plant, and the whole plant is uprooted for the last time. Do not water within a week after each harvest to prevent rot.

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