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.
First, choose the appropriate varieties of varieties are: No. 1 parsley, Caroline, Parvus and so on.
Second, planting seedlings summer cultivation is generally planted in mid-June nursery, planting in mid-July, 9 to October can be harvested. Nursery seedbed should be selected high-pitched, can discharge energy irrigation plots, per acre Shi organic fertilizer applied 2000 to 3000 kg, after turning to make bed, must be digging around the drainage ditch, 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 fine soil 0.5 ~ 0.7 cm thick, the upper cover film moisturizes and prevents heavy rain. Due to the high daytime temperatures during sowing, shade nets must be used to cover cooling. After 5-7 days of sowing, most of the seedlings should be peeled off the film in a timely manner, and the seedlings should be seeded one time after the seedlings. Calendar seedling age 30 days, when there are 4 to 5 true leaves can be planted.
Third, the planting should avoid cultivars with celery, wolfberry and other plants. Apply 2000 kg of fertilizer per mu, 25 kg of superphosphate, and 5 kg of potassium sulfate. Distribute evenly and plow till you do. Water after the rain. Do not spray deep plowing 200 g/mu after spraying. Planting spacing is 20 cm and plant spacing is 15 cm. Set 18,000 plants per acre. After planting water, cover the shade net in time.
Fourth, field management
1. Weeding and weeding. After planting easing seedlings till cultivating 2 to 3 times before harvesting, cultivating once after each harvest, cultivator should not be too deep to prevent damage to the root system.
2. Fertilizer management. During the growth period, the top dressing is applied once every 15 days for a total of 3 to 4 times, each time a topdressing 75 to 80 kg of urea is applied per acre, and a 0.3% aqueous solution of potassium dihydrogen phosphate 300 to 400 kg is 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. Parsley is a cold-type 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 play a role in pest control.
V. Harvesting Harvesting begins 80 to 90 days after sowing and can be harvested in November. The standard of harvesting is: When the plants have more than 14 leafy green leaves, they can pick moderately moderate growth and have good commercial leaves. . The lower part is the old leaf, the upper young leaf is not completely unfolded, and the single-leaf lighter is not suitable for harvesting.

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