The colors of color bell peppers are red, golden, purple, light purple, milk yellow and other colors. The fruit shape is square and large, the skin is smooth, the flesh is thick, the flesh thickness is 5-7mm, and the single fruit weight is 200-400 g. 500 grams; taste sweet, high nutritional value, suitable for raw food. The color bell peppers are resistant to low temperature and light, and have a long growth period. In recent years, China has introduced colored sweet peppers from the United States, the Netherlands, Israel, and other countries. It has been planted in suburbs of Beijing, Shanghai and other cities. It has achieved good results and has developed rapidly throughout the country. Jiamusi Vegetable Research Institute introduced two years, the effect is good, now its greenhouse cultivation techniques are introduced as follows. First, the selection of varieties used fruit large, bright colors, smooth skin, taste sweet, brittle, strong hybrid resistance generation. Such as: Yellow Agate (Beijing Agricultural Extension Station bred), tender fruit is green, ripe fruit is golden yellow, square lantern shape, fruit length, thickness are about 10 cm, single fruit weight 2000 grams, good taste, strong disease resistance High yield; Amethyst, tender fruit is lavender, old ripe fruit is red, lantern shape, fruit length, thickness are about 10 cm, thick flesh, good taste, strong disease resistance, high yield; Mazurka (Introduced by the Netherlands), the tender fruit is green, the mature fruit is bright red, square lantern-shaped, fruit length, thickness are 10-12 cm, flesh is thick, up to 7mm, single fruit weight 200-400 grams, good taste, plant growth Strong, strong disease resistance, high yield. Second, nursery seedlings to do a good job of seed bed disinfection and seed disinfection, master the appropriate seedling age, cultivate disease-free strong seedlings. The seedbed is disinfected with 50% carbendazim 8-10 g/m2 and appropriate amount of red tide soil. Soaking seeds with 10% Na3PO4 solution for 30 minutes to prevent virus diseases, then soaking in clean water, soaking for 8-12 hours, placing germination at 25-30°C under ambient conditions for 2-4 days, and sowing seeds after dew. Use seedlings to cultivate seedlings, using peat as a substrate. After sowing, the temperature is maintained at 28-30°C during the day, 18-20°C at night, and about 20°C at the ground temperature. After the seedlings are flushed, the temperature is reduced by about 3°C. If no seedlings were used for seedlings, single seedlings should be planted at the time of 2 leaves and 1 heart. Strong seedlings standard: height 18-20 centimeters, about 10 leaves, dark green leaves, leaf hypertrophy, thick stems, root development is good, no leggy, aging and weak seedlings. Third, the selection of land, fertilization, planting and selection of fruit and vegetable crops in 3 years without planting land, apply full maturity organic fertilizer 45t/hm2 above, fine soil preparation, tillage depth 25-30 cm, ridge, ridge distance 70-80 cm. Select sunny morning planting, spacing 40 cm, timely watering after planting, preferably covered. IV. Field management 1. Fertilizer and water management After planting seedlings and seedlings at the beginning of the fruiting period, the green Xinbao brand bio-complex fertilizer is applied at 450 kg/hm2. After each harvest, it is applied once; spraying every 10 days from the seedling stage begins. Bao Ye surface fertilizer, fertilizer amount 150-300 ml / hm2, even spray 3-4 times. After planting, pour water once to promote slow seedlings. After the results, according to weather conditions and growing water, often keep the soil moist, generally 5-7 days watering once, each watering volume should not be too large. 2, temperature control temperature control during the day at 25-30 °C, the maximum does not exceed 32 °C, the minimum is not less than 20 °C; night control at 16-18 °C. When the light is too strong, it is best to use a shade net. 3. Pruning and hanging vine pruning are the key measures affecting the yield formation and fruit size, and are also different from ordinary sweet pepper management. 2 to 3 main arbors per plant are selected, 7 plants per square metre are appropriate. Lateral buds from the buds of the pepper and the base leaves are removed as early as possible. From the 4th to the 5th, leave the peppers as the main branch. Lord, after the timely removal of collaterals, the central collateral can be left to pick up after a pepper, each plant has always maintained 2-3 shoots upward growth, generally not earth, in order to prevent lodging more use of plastic rope hanging plant fixed. The color of bell pepper can reach a height of 2 meters or more, with about 20 knots per knot. 4. Disease prevention and control Wilt disease Wilt and wilting 500-700 times liquid to root and prevent and cure; Virus disease use phylloxine 150 milliliter per hectare to control 225 kilograms of water; Early blight 40% epidemic kill WP 500-1000 times liquid Prevention. V. Picking up the color sweet pepper as a high-grade variety of special dishes. When it comes to market, the quality requirements of the fruit are extremely strict. Therefore, the harvesting cannot be too early or too late, and the optimal harvesting time may vary depending on the variety. After 70 to 90 days after planting, the purple varieties stopped fruit expansion and harvested when fully thickened; red, yellow, and white varieties were harvested 100 to 120 days after planting when the fruit was completely transformed. When harvesting, use scissors to cut from the junction of the stem and the plant. Do not twist it by hand so as not to damage the plant and infect the disease. After harvesting, the fruit should be taken lightly and put in packages according to size. The average color sweet pepper yield per hectare can reach more than 75t.