Introduction of planting technology of colored pepper in greenhouse

The vitamin content of colored pepper ranks first among vegetables. Rich in vitamin A, vitamin B, vitamin C, carbohydrate, fiber, calcium, phosphorus, iron and other nutrients. Colored pepper can be fried like other common peppers, the color is still very bright, attractive appetite, using it to do salad dishes can show its advantages. With the development of greenhouse planting technology, delicious colored peppers can also be eaten all the year round. Let's take a look at the introduction of greenhouse colored pepper planting technology.

1. Planting techniques of colored pepper in greenhouse

1. Reasonable watering: proper watering of colored pepper after planting and surviving. When you first saw the first fruit, you began to water and fertilize. During the flowering and fruiting period, the soil should be kept moist, watered once every 5-10 days according to the degree of dryness and humidity of the soil, watered in the sunny morning when the temperature is low, and watered in the evening when the temperature is high. Drying in the greenhouse and high temperature will affect the flowering and insemination of colored peppers, resulting in falling flowers. At this time, attention should be paid to watering, cooling and humidification, requiring the relative water content of the soil to be kept at 60% to 70%.

2. Timely fertilization: colored pepper seedling fertilizer at seedling stage, compound fertilizer or urea 5kg / mu, fruit fertilizer at early fruit stage, 20kg / mu compound fertilizer or urea, and then fertilizer every 20 days or so, with 15kg / mu compound fertilizer and water application each time. In the middle and later stage of fruit picking, 0.2% potassium dihydrogen phosphate plus 0.1% 0.2% zinc sulfate was sprayed with foliar fertilizer every 7 days.

2. Temperature management: the suitable temperature for the growth of colored pepper is 20: 25 ℃ during the day and 15: 20 ℃ at night, and the temperature in the greenhouse is lower than 10 ℃. It is difficult to pollinate when the temperature is higher than 35 ℃, which is easy to cause flower and fruit drop. The air humidity requires 70%, the sun is sufficient at noon during the day, and the weather with high temperature requires covering the sunshade net to cool down. When the outside temperature rises, it is required to gradually increase the amount of ventilation in order to spend the summer safely.

3. Pruning and hanging vines: two strong main branches are selected for each plant, the buds of door pepper and the basal lateral buds are wiped off in time, the pepper is retained from the 4th to 5th section, and the fruit of the main branch is given priority to, then the side branch is erased in time, and the middle side branch can be coring after leaving 1 fruit. each plant is required to keep 2 branches growing upward all the time. Generally do not cultivate the soil, each main branch is hoisted and fixed with an anti-aging plastic rope.

4. Flower thinning and fruit thinning: color pepper has strong branching power, it is necessary to beat the branches before flowering, and the side branches should be knocked off in time. During the growth period, it is necessary to timely thinning flowers and fruits, leaving no door pepper, leaving fruit cross, leaving one fruit per branch, and beating the rest of the flowers and fruits to ensure that each plant can bear no more than 6 fruits at the same time, so as to facilitate the expansion of fruit. Remove the withered, old and diseased leaves in time to concentrate nutrients and improve lighting conditions.

1. Timely harvest: after the fruit of colored pepper stops expanding and changing color, it should be harvested in time and should be harvested in the morning. When harvesting, all the stalks should be harvested, and no stalks should be left in the axils of leaves.

Second, how to add color to colored peppers?

1. Sufficient light

Light is one of the key factors that directly affect the coloring of colored pepper, so in order to improve the lighting conditions of solar greenhouse and prevent the lack of light, we must pay attention to clean the greenhouse film and improve the transmittance of greenhouse film during the coloring period. In addition, the old leaves and yellow leaves in the lower part of the plant should be removed in time to ensure good light ventilation between plants and promote uniform coloring of colored peppers.

2. Temperature control

The most suitable temperature for coloring period of colored pepper is about 25 ℃, which directly affects the color of lycopene. If the temperature of the solar greenhouse is too high, even above 35 ℃, it will not be conducive to the color conversion of colored pepper.