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How to increase the temperature when using agricultural film in winter

2020-08-31

It is untrue to say how strong agricultural film can reach in winter. Since the temperature of the plastic greenhouse is mainly determined by the user, the temperature of the greenhouse is around 25 degrees, which is suitable for most economic crop vegetable greenhouse growers.

In winter, the temperature of plastic film is generally about 10 degrees higher than that of outdoors. According to the benefit film test, the temperature of the mulching film on a sunny day in winter is about 7-8 degrees in the morning. When the sun rises, the temperature in the greenhouse is also rising, and the temperature can reach 32 degrees. If it is cloudy or snowing, the greenhouse temperature is about 3-6 degrees, so this time we will increase the temperature of the plastic greenhouse.

Several ways to increase the temperature of the plastic greenhouse:

1. Increase the air permeability of the plastic film: high light transmittance anti-shedding film, timely cleaning of dust on the film, etc., can change the light and increase the greenhouse temperature;

2. Increase the thermal insulation of straw: The straw covered with greenhouse has strong thermal insulation. In order to better increase the thermal insulation performance, the thick snow waterfall can prevent the grass from getting wet. In winter, add straw waste agricultural film or ordinary plastic cloth from a few years ago on the floor;

3. Increase the greenhouse insulation wall: the building curtain wall can be placed on the wall, with bricks or hollow insulation walls, filled with straws or polystyrene foam boards, the effect is better, cold areas can be directly built into the wall, easy Heated

4. Set up temporary heating measures: suspend cold, frost and other meteorological disasters and cloudy days. In bad weather, there is no light. A 1600 2500W heater 23 power supply can be temporarily installed in the greenhouse to prevent leakage due to excessive humidity in the greenhouse. When the heater is used in the bathroom, the direction of the heater outlet should not directly point to the plants;

5. Greenhouse hanging: Not only increases the lighting of the studio, but also increases the temperature of the greenhouse. The method is to hang metal-coated plastic film or aluminum foil on the back wall of the greenhouse, hanging once every 2-3 meters. The reflective screen is suspended to reduce the heat absorption of the wall, which can make the greenhouse temperature reach 2-3 degrees, and at the same time increase the lighting effect in the greenhouse;

6. Appropriately increase smoke in ourselves: We will smoke prematurely with oil lamp wood, release carbon dioxide, increase its concentration, and increase the reverse radiation and heat preservation effect of the atmosphere.

The above is about how to increase the indoor temperature when using agricultural film in winter. If you want to know other information, please consult us.


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