Green pepper greenhouses, solar greenhouses and summer extensions should be selected for mid-late maturing varieties, and management should be strengthened to achieve better economic benefits. The specific method is: after the high temperature in summer, in order to improve the utilization of nutrients in early spring greenhouses and green greenhouse green peppers, promote the main branch results, and improve the commerciality of the fruit, the top branches should be cut off after two knots. After pruning, strengthen the topdressing and watering, promote the development of new branches, flower and fruit, and strive to sit in front of the shed. After the fall, when the minimum outside temperature is below 15 °C, the plastic film is covered. Carry out the cultivation after the autumn extension, and the autumn shed time is adapted to local conditions. Too early, the temperature is too high, which is not conducive to the growth of green pepper fruit; too late, the temperature is too low, the fruit is difficult to reach the maturity of the commodity, and the market price is low.
In the late summer, the shed can be gradually carried out. At the beginning, only the roof of the shed is buckled, which is in the shape of a canopy. As the temperature drops, the film around the shed will be pressed at night and uncovered during the day. When the outside temperature drops below 15 °C, the whole shed should be buckled at night. When the temperature in the shed is higher than 25 °C during the daytime, short-term ventilation is carried out to reduce the temperature inside the shed. When the outside temperature drops sharply, when the temperature in the shed is below 15 °C, it is basically no longer ventilated. And it is necessary to cover the plastic film around the greenhouse or the plastic film on the south window of the solar greenhouse to prevent cold damage and prevent freezing damage and promote fruit ripening.
After the shed, the fruit is inflated, and the manure can be traced to 666.7m2500kg or urea 10-15kg. At the same time, combined with carbon dioxide fertilization, promote the rapid expansion of the fruit. Since then, the management of greenhouses and solar greenhouses requires insulation, warming and less ventilation. In order to avoid excessive humidity in the shed, the irrigation can be controlled, as long as the soil is not excessively dry, in principle no watering is required. At this time, if the humidity in the shed is too large, it can be dehumidified by planting ash or dried culture soil in the sputum; artificial rubbing and dehumidification can also be used. The specific method is: prepare a towel, a basin or a bucket, gently rub the towel on the film, absorb the water droplets that are gathered on it, and when the towel absorbs the water, the water is kneaded in the basin or the bucket. Although the method is relatively labor-intensive, it provides a new way to solve the light transmittance in greenhouses and solar greenhouses and reduce the humidity in the greenhouse.
When the outside temperature is too low, green peppers in greenhouses and solar greenhouses cannot continue to grow. They should be harvested in time to supply the market to prevent the fruits from being frozen.
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