I. Cultivation of fresh celery in a greenhouse
The harvest period for the autumn celery cultivation in the greenhouse is from the end of December to the New Year period.
1. Selection of improved species
Choose high-quality, high-quality, low-temperature and low-light resistant varieties, such as Kaifeng glass brittle, Jinnan real celery and so on.
2. Immersion germination and sowing
(1) Sowing period
Seed sowing in 6-5 months.
(2) Preparation of nursery crickets
After the harvest, the weeds were removed timely and the land was ploughed to the sun. After every 667m2, 5000kg of high-quality soil heterotrophic fertilizer was applied. After that, soil preparation was performed and the width was 1.2-1.5m.
(3) Seed treatment and germination
Soak the seeds in clean water for 24-28 hours and then rinse with water. Repeatedly rub the seeds with your hands, remove them and wrap them with a damp cloth for germination. The germination temperature is controlled at 15-20 degrees, and it can also be placed on the bottom of a household refrigerator. Or immerse in the shady shade for germination; during germination, remove the seeds every day and rinse them with cold water. After 5-7 days, more than 80% of the seeds can be sown when exposed.
(4) sowing
Sowing the bottom water at the time of sowing; sprinkle a thin layer of fine soil on the surface of the seedlings, with a seeding amount of 1-1.5 kg per 667 m2; the ratio of the seedbed to the planted field is 1:3-40.
3. Management of nursery beds
(1) Shade
Shade nets were used to cover the plants. After the emergence, the shelter was shaded and watered frequently. The principle of uncovering the sunshade covers the weather: the cover does not cover the cloudy sky, the cover does not cover the air during the day, and the cover rain does not cover the rain; the shade net is removed one week before planting.
(2) Saplings
Such as seedlings have 2-3 true leaf time seedlings, seedlings from about 3cm.
(3) Water and Fertilizer Management
Watering management principles: water pouring.
Watering weather: cool days, cool water and cool water.
Top dressing matters: chase a small amount of fast-acting fertilizer, the first time is strong seedling fertilizer, apply 25 kg of sulfuric acid per acre after setting seedlings; the second time is to raise seedling fertilizer, apply 5-7 days before transplantation, apply sulfuric acid per acre. Ammonium 10kg.
4. Colonization
Planting time: At the end of August, the height of seedlings was 15-20 cm high and there were 5 true leaves colonized.
Density of colonization: Plant colonization line distance is 10cm15cm.
Colonization points: planting seedlings while planting, while planting edge watering.
5. Management after planting
(1) Before colonization to the membrane before colonization
Post-planting management points: mainly watering, cultivating, and weeding; top dressing twice after planting, for the first time 15 days after planting, 15 kg of sulfuric acid per acre was applied, and the second topdressing plant entered a vigorous growth period. 1,000 kg of decomposed human excrement is applied per acre.
(2) Management of coverage
In October-November, it is necessary to cover the greenhouse insulation, pay attention to ventilation and cooling in the early stage, pay attention to heat preservation and humidity removal in the middle period, and cover straw cold insulation in the later period; top-up 0.5-0.65 kg borax per acre in the early stage, harvest the first half Two doses of gibberellin with a concentration of 30 ppm were applied on a monthly basis.
6. Harvest
Harvested in the first half of November and harvested every 25 days.
Second, greenhouse cultivation of winter celery (New Year's Day, listed during the Spring Festival)
1. Variety selection
Select solid varieties that are resistant to cold and are not easily fibrillated, such as Chunfeng and Kaifeng Glass.
2. Nursery
The method of raising seedlings is basically the same as the autumn celery in the greenhouse; the sowing time is 30 days later than the autumn production.
3. Colonization
During the 9-10 months of colonization, the colonization distance of the colonized plants was 10cm X 10cm.
4. Field management
(1) Timely film insulation
In October-November, it is necessary to timely and timely keep film insulation.
(2) Fertilizer management and greenhouse management
The winter celery fertilizer management is the same as the cultivation of greenhouses and autumn celery.
5. Harvest
When the celery grows 60-70cm, it begins to harvest the outer leaves before and after New Year's Day. Each tree can receive 3-4 pieces of outer leaves once in a row. In February, it can be uprooted and used for Spring Festival.
Third, the greenhouse spring (overwinter) celery cultivation (listed in March when the light spring)
1. Variety selection
Choose cold-resistant, high-quality, high-yielding and late bolting varieties, such as iron stalked celery, Chunfeng and others.
2. Open seedlings
It can be planted from August to September. The celery grows to three true leaves and the seedlings are planted when the seedling height is 18-20cm.
3. Planting and field management
Planting in the middle and late October, the planting distance is 9-12cm; when the temperature decreases in early November, the scaffolding film will be erected in a timely manner; in December, we must pay attention to cold insulation, and in the second half of February, strengthen the topdressing, watering and cultivating management, Per acre followed by decomposed manure 1000kg.
4. Harvest
Harvest begins in mid-March.
Fourth, greenhouse celery cultivation
1. Choose a variety
More heat-resistant, early-maturing varieties, such as Jinnan Shiqin No. 1.
2. Timely sowing, cultivating strong seedlings
After the frost breaks in the spring, it is sown in the middle and early May.
3. Colonization
In early June, planting, planting, row spacing 10 X 14cm, planting 2-3 plants per hole.
4. Field management
(1) Timely sun protection
In the late June, the sunshade net was covered, and the sunshade net was covered on the plastic film.
(2) Strengthen fertilizer and water management
Diligent watering and timely topdressing. Top dressing, mainly fertilizers and fertilizers, do not use human waste, apply sulfuric acid at 20-25 kg per acre; collect the leaves at a concentration of 30 ppm twice in the first half of the harvest. Cinomycin.
5. Harvest
The autumn-winter harvest from August to September is generally harvested 60-90 days after planting.
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