High-yielding Cultivation Techniques of Autumn Celery in Sunlight Greenhouse

Celery is a cold-tolerant vegetable. It is cold and chilly. It uses celery in a greenhouse for cultivation. It is usually used as a fork of cucumber or tomato in winter and spring for autumn and winter cultivation.

I. Variety selection

The celery is divided into two kinds: sweet celery and hollow celery. The solid celery is tall, with thick petiole, petiole, dark green leaves, crisp quality, low temperature resistance, strong disease resistance, high yield, and suitable for greenhouse cultivation. Commonly used in production Kaifeng glass crisp, solid blue, solid green Tianjin.

Second, nursery

1. Nursery period. Greenhouse winter autumn celery, usually in late July to early August sowing nursery, seedling age about 50 days, planting in mid-September.

2. Set up the earth. The celery seedling season is at a high temperature and rainy season, which is unfavorable for seedling emergence. Therefore, we must do a good job and do a good job of shading. The method is to prepare the seedbed according to 1/15 of the actual planting area, and make the seedbed made of sorghum with a width of 1 to 1.2 meters and surrounded by soil and drains. First, apply a small amount of high-quality farmyard manure and superphosphate to the surface of the planter. 9 to 12 centimeters and the soil mix, squash flat solid, and then soaked in water to be broadcast.

3. Sow. Use seeds of 35-40 g/m2 evenly spread on the seedbed, cover 1 to 1.5 centimeters of fine sand, and then spray water soaked.

4. Post-broadcast management. Pay attention to rain and shade after sowing, often spray water to keep the surface moist, about 7 to 8 days after the emergence of seedlings, shading at noon light intensity, sooner or later, gradually reduce the shading time, let the seedlings adapt to strong light . Appropriate time seedlings, so that the seedling distance to maintain 1.5 to 2 cm. Timely eradication of weeds in the field revealed that the locusts were promptly treated with drugs. About 50 days of seedling age, there are 5 to 6 true leaves when planting.

Third, colonization

In mid-September, first, apply 5,000 to 8,000 kilograms of crude fertilizer to the greenhouse plot, 50 to 100 kilograms of phosphate fertilizer, and 25 to 30 kilograms of ammonium bicarbonate to plow and level the soil. Within 10 cm of row, open the ditch, and plant by hole. When the distance is 10 cm, 2 to 3 plants per hole are planted. When the distance is 7 cm, 1 to 2 plants per hole are planted, and the depth is limited to burying the short stem. With the planting with the pouring, the small water stable seedlings, the whole planting after pouring large water penetrating the soil.

Watering once in 1 to 2 days after planting promoted the seedlings to slow, followed by cultivating seedlings after the seedlings were sown and promote rooting. In late October, the film will be buckled. After the film was buckled, it was released during the day and the room temperature did not exceed 25°C. After entering November, it was properly covered and kept at 15-20°C during the day and 8°C at night. The seedling height is about 15 centimeters, pouring water when the ridges are closed, and chasing 15 to 20 kilograms of nitrogen fertilizer. After that, the water is poured every 3 to 5 days. After 15 days, the fertilizer is chased once. After entering the middle or late December, the weather is cold and watering should be reduced.

Fourth, harvest

Harvesting began 50 to 60 days after colonization of greenhouse celery. When harvesting in batches, they should be harvested every 1 month. Each harvest should not be too awkward. Otherwise, the recovery of celery will be slow and affect the output. Within 5 to 7 days after harvesting, do not water, so as to avoid infection caused by wound infection. Afterwards, according to the requirements for planting and market demand, the roots can be rooted from mid-January to mid-February.

V. Disease Prevention

1. Spot disease. It mainly damages the leaves and also damages the petioles and stems. In the early stage of disease, yellowish-green spotted round spots appeared on the leaves, quickly turning brown or dark brown, with yellow edges, and petiole and stem disease, resulting in water stains round spot or streak, later becoming dark brown, slightly sunken.

Control methods: Summer sowing seedlings should be shaded, rain-proof, dew-proof, and drained in a timely manner; strengthen ventilation, reduce humidity, not flood irrigation; apply enough organic fertilizer, increase application of phosphorus and potassium fertilizer; keep the pastoral clean and timely remove diseased leaves. Chemical control, with 65% of dexamethasone 500 times liquid or polysulfide suspension 1000 times or 75% chlorothalonil 600 to 700 times the liquid, spray once every 7 days, and even spray 2 or 3 times.

2. Spot blotch. It mainly damages leaves, petioles and stems. Leaf lesions were round and light brown, and gradually turned brown later. Small black spots were scattered on the lesions. The lesions on the petioles and stems were oblong, slightly sunken, and the leaves became brown and dry when severe.

Control methods: Use disease-free seeds, soak in seeds in warm water at 48°C for 30 minutes, and then cool in cold water. Strengthen ventilation to prevent flooding and reduce humidity. Clean the garden and remove diseased leaves. Chemical control, the early onset of spraying 65% on behalf of Zinc 500 times or 1000 times more sulfur emulsion suspension, spray every 7 to 10 days, and even spray twice.

Super food & Beverage Additives

NATURAL is one of the most professional superfoods powder manufacturers and suppliers. Our factory offers the best quality superfoods powder with competitive price. Welcome to buy or wholesale bulk products for sale here.

Food Supplements,Food Additives,Beverage Supplements,Dietary Supplement

Xi'an Natural Field Bio-Technique Co., Ltd. , https://www.naturalnf.com