Key points of high yield cultivation of summer celery

Celery also called artichoke, dry celery. It feeds mainly on young leaves, and is popular with consumers for its richness in carotene and vitamins. Here are the highlights of high-yield cultivation techniques for summer celery.

Choose the right variety

The main varieties are: No. 1 Parsley, Caroline, Parvus and so on.

Sowing seedlings

Summer celery cultivation is generally planted in mid-June, and planted in mid-July. Harvesting can be continued from September to October. Nursery bed should be selected high-pitched, can discharge irrigation land. Apply 2000-3000 kg of organic fertilizer per acre, turn it into a bed, make sure that the drainage ditches are dug around, and beware of seedbed water. Seed soaking after soaking 6 ~ 10 hours, germination under 15 °C ~ 20 °C conditions, about 5 days to germinate sowing. The pitch is 10-13 cm. After sowing, cover the fine soil 0.5~0.7cm thick, cover the plastic film to moisturize and prevent heavy rain. Due to the high daytime temperatures during sowing, shade nets must be used to cover cooling. Seedlings should be peeled off in time when most of the seedlings are seeded 5 to 7 days after sowing, and when 4 to 5 true leaves are present, they can be planted.

Colonization

Should avoid stalks with celery, wolfberry and other equivalent plants, apply 2000 kg of circumfertilizer per mu, 25 kg of superphosphate, 5 kg of potassium sulfate, spread evenly, plow till rake, pay attention to dig a good drainage ditch, to prevent rain Water. Do not spray deep plowing 200 g/mu after spraying. Planting spacing is 20 centimeters, plant spacing 15 centimeters, colonization of 18,000 plants per acre. After planting water, cover the shade net in time.

Field management

1. Weeding and weeding. After planting seedlings, till the cultivator is harvested 2 or 3 times before harvesting, and cultivating once after each harvest, the cultivator must not be too deep to prevent damage to the root system.

2. Fertilizer management. During the growing period, the fertilizer was topdressed once every 15 days for a total of 3 to 4 times, each time a topdressing 15 to 20 kg of urea was applied, and a 0.3% aqueous solution of potassium dihydrogen phosphate was sprayed. In addition to watering each time after top dressing, we should always keep the soil moist, avoid drought, and drain water in a timely manner during the rainy season.

3. Cover the cooling with a shade net. The celery is a kind of cold vegetable, the use of shade net cover cultivation than the non-covered production up to 40% to 50%, and can significantly improve the quality of goods, but also can play a certain role in pest control.

Harvesting

Harvesting begins 80 to 90 days after sowing and can be received in November. The criteria for harvesting are: When the plants have more than 14 green leaves, they can pick the leaves with moderate growth and good commercial quality. The old leaves of the lower part and the young leaves of the upper part are not fully developed and should not be harvested.

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