The construction of the Shouguang greenhouse is also widespread in the past two years. As the weather gradually decreases, the insulation of greenhouses has become an important issue. How can we better maintain greenhouse greenhouses and ensure the normal growth of plants? There are three methods:
Insulation method: In the greenhouse entrance plus windshield, from the buffer room into the greenhouse, it is necessary to open and close the door action, the door is vulnerable to weak vegetables, low yield, prone to frost damage. If a piece of film with a length twice the height of the door and a width of 1.52 meters is hung inward on the south side of the walkway, the bottom side will be tightly pressed. For the thick soil wall greenhouse, the film can be placed on the interior side. Thick curtains are recommended and can be effective. Relieving the cold wind at the doorway, the cold wind entering the greenhouse was buffered, naturally not so cold, and the damage to the crop was also reduced.
Insulation method 2: Upwind vent film (also called tuyere buffer film). In winter, the greenhouse still needs ventilation. After the air outlet is opened, the cold air directly enters the greenhouse. The temperature just below the tuyere changes greatly, and the crop often suffers. When the cold wind hits, it is necessary to install a windshield below the uptake. The method is: Set a piece of film with a length of 1.5 meters and a greenhouse equal to 1 meter below the upwind outlet. Tighten and flatten it with a steel wire to make it high in the south and low in the north, hang it on the steel pipe in the south, and fix it on the column in the north. The film winter can be wind and summer can be rain, at the same time, the drip on the membrane can flow directly to the walkway, not only preventing cold damage, but also avoiding the water droplets falling on the plants, resulting in the occurrence of disease, killing more.
Insulation method 3: Frontier cold film, in the winter production, the frontier of the greenhouse grows poorly, and it is easy to attack. The main reason is that the temperature at the front edge changes greatly, humidity is high, especially at night. If a piece of mulch film (new) is set on the front edge, the upper side is fixed to the steel wire and the lower side is draped to the ground, which can prevent the low temperature damage from the shed film, and can block the cold fog in front. The effect is obvious.
To ensure that the above three methods, will help the greenhouse insulation in winter, but also to avoid the normal growth of the plant in the winter cold season.
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