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Changle Luguang Plastic Products Co., Ltd. is mainly engaged in various high-temperature shed films, PO films, grouting films, anti-fog films, two-layer films, and mulching films.
The benefits of greenhouse film for crop production
Release time:
2017-11-08
Nowadays, greenhouse film is used in agricultural production.
Nowadays, greenhouse film is used in agricultural production. It can be seen that the advantages of greenhouse film on crop production are second to none, and greenhouse film is of great help to improve crop yield. Greenhouse film has become a commonly used tool in agricultural production. The temperature regulation of greenhouse film is accomplished by ventilation and heating. Therefore, in summer, the use of shading materials can also reduce the exposure of the sun, so that the crops will not be burned by the strong light of the sun. This can also fully prevent the temperature in the shed from being too high. In order to minimize heat loss and increase air temperature and soil temperature, the greenhouse film should be covered as tightly as possible. It is also possible to set up wind barriers around the greenhouse, and set up a small shed in the greenhouse and then use straw, non-woven fabrics, foam plastics and other multi-layer covering measures. In addition, heating measures can also be used to increase the temperature.
During the day, there is sufficient light. If the film is sealed, the temperature inside the shed will rise rapidly, and the temperature can reach 40-50 °C or more, which is more than 20 °C higher than that outside the shed. On cloudy and rainy days, the effect of increasing the temperature of the greenhouse film is poor. The lower temperature inside the shed at night is generally 1-3°C higher than that outside the shed. The indoor temperature is more stable than the air temperature, usually 10 to 20 °C. The temperature inside the shed also varies from location to location. The lateral distribution of the greenhouse film is high in the middle and low on both sides, so the plants in the middle of the greenhouse are often taller than those on both sides.
What we need to pay attention to when managing the greenhouse film is the adjustment of the temperature and humidity in the greenhouse. Regarding the temperature, we cannot make the greenhouse film too stuffy, and we must ventilate frequently to prevent the plants from being stuffed. Therefore, relying on natural ventilation will not be very effective. Therefore, artificial ventilation management methods must be adopted to balance the temperature and humidity in the greenhouse film, which is more conducive to the growth of crops.
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