Red bell pepper. The plant is compact, with dark green leaves and many branches. The fruit is oblate and dark green. The mature fruit is dark red, like a lantern. The flesh is thick and slightly spicy and sweet. Mainly used as fresh food and kimchi raw materials.

Sowing and seedling management

Choose a vegetable plot with leeward side and sunny side, loose soil, convenient irrigation and drainage, and no solanaceous crops or a plot with good fertility as a seedbed. Plow deeply before sowing and apply enough decomposed organic fertilizer. One acre of planting field requires 10-15 square meters of seedbed. The traditional local sowing time is around April 10. When seedlings are raised in the open field, the emergence is slow, the sowing is late, and the harvest time is short. Therefore, small sheds can be used to raise seedlings, sowing from mid-to-late March to April 5, and sowing in early May. The day before sowing, water the seedbed with enough bottom water. When the soil moisture is suitable, the soil should be prepared into a 1.2m wide border. It is required that the soil and fertilizer in the seedbed are evenly mixed and reached a flat and fine density before sowing. Before sowing, dry the seeds in the sun for about a day, soak the seeds at about 55℃, soak them in hot water for 15 minutes, then soak them in 0.5 copper sulfate solution and 10 trisodium phosphate solution for 10 minutes, take them out, wash them, and soak them for 3-4 more days. Sow seeds after an hour. Sow seeds evenly, 10 grams per square meter, 100-150 grams per acre. After planting, gently shovel the soil with a shovel to cover the seeds and soil tightly. Cover with a layer of soil 1 cm thick and cover with plastic wrap.

Before emergence, heat preservation is the main way to promote emergence. During the day, the temperature in the greenhouse is maintained at 25-30°C, and at night, it is kept above 15°C. After emergence, the temperature should be controlled at 20-25°C during the day and above 15°C at night. If the temperature is too low at night, the shed should be covered with straw to keep it warm. On sunny days, prevent high temperatures from roasting the seedlings. When the temperature is too high, the film should be removed in time to ventilate and cool down. 2 urea and 0. Topdress the leaves with 2 potassium dihydrogen phosphate solution once. If the river bed soil is too dry, spray warm water at 15-20°C. At the same time, thinning of seedlings should be carried out 1-2 times to remove weeds from seedlings that are too dense, too weak or too diseased. Use 72.2 700 times solution of Promethachlor to control aphids, and 2.5 ml dichlorvos 2000 times solution to control aphids.

Planting and field management

Select loam or sandy soil with deep soil, convenient drainage and irrigation, fertile soil, and no solanaceous crops planted in the previous year. Depth approximately 30 cm. Apply 5000-6000 kilograms of organic fertilizer and 50 kilograms of nitrogen, phosphorus and potassium compound fertilizer per acre as base fertilizer. The border width is 1.7m and the trench width is 30-40cm. The edge surface is required to be smooth and covered with plastic film. Plant peppers in early and mid-May when the leaves are in full bloom. 4-5 hours before sowing, water the seedbed once, and try to carry as much soil as possible when transplanting to reduce root damage. Plant 4 rows on each side, single plant, row spacing 33cm × 40cm, about 4,500 plants per acre. Planting, transplanting and watering should be done on a sunny afternoon or on a cloudy day. Seal the area around the planting opening with soil.

After planting red bell peppers, if the pepper seedlings are not sealed, you can cover weeds with plastic film to lower the temperature and reduce seedling shortage. In case of high temperature and drought, watering can be done in the early morning or evening. In addition, weeds in the fields should be removed promptly and drainage should be done promptly after rain. Before the red bell peppers set fruit, take a look at the seedlings and add fertilizer. In addition, spray 0.3 urea and 0.3 potassium dihydrogen phosphate on the leaves, once every 10 days, 3-4 times in a row. After the red bell pepper enters the fruiting stage, the old leaves, diseased leaves and yellow leaves in the lower part of the first layer of fruit should be removed in time. During the fruiting period, excessively dense leaves and side branches under branches should be removed to reduce nutrient consumption and promote ventilation and light transmission.

Pest and disease control

(1) Disease control. According to different diseases, choose 2-3 methods to control spraying in time. Use 500 times the amount of 70 Badford powder to control anthracnose, bacterial leaf spot, eggplant scab and white spot disease; use 700 times the amount of 72.2 pulse liquid to control blight and soft rot; use 2500 times the amount of 95dt to control bacterial wilt and Fusarium disease; viral diseases can be controlled with 400 times of 20 viruses. Chemicals should be used interchangeably to prevent resistance. Drug control should be started before the onset of disease or at the early stage of the disease, once every 7-10 days until the results are available in the middle and late stages, and stopped 7-10 days before harvest.

(2) Pest control. Prompt control of aphids can also prevent the occurrence of viral diseases. Commonly used pesticides include 2.5 dipyridamole EC 2000 times, 10 1000 times 1000 times, etc.; in order to control cotton bollworm and whitefly, prediction work must be done and timely application of 1000 times 35 Sedan EC within 3 days after the peak spawning period. Or 1500 times 5 Regent Suspension. Use 20% mite EC to control tea mites; eggs or nymphs on pepper leaves can be removed during the peak period of adult egg-laying, and a small number of eggs or nymphs can be caught by hand around noon. 2.5 Diclofenac EC 2000 times or 35 Sedan EC 1000 times have good control effect on both adults and nymphs.

Harvest

Red bell peppers gradually mature from late July to early September and can be harvested. When picking, ripe red peppers should be picked promptly. Harvesting should be done on a sunny morning. After the peppers are harvested, they should be inspected in time, and peppers with pests and diseases should be removed for processing or sale in a timely manner.