Shelter: Antifreeze Six Measures
Spraying antifreeze can use “freeze-killing†and can be sprayed or brushed when used, and 400-600 times liquid can be used when spraying. Spraying (brushing) the plants in the early stage, spraying (brushing) the leaves, flowers, buds, etc. of the vegetables during the spraying can all play a role in preventing cold and freezing.
Before the cold smoke around the shed arrives, smoke is ignited around the shed to prevent the surrounding heat from radiating into the air. However, firewood can not be used to ignite and warm up in the shed. The smoke emitted from the stalk burning has great harm to the vegetables.
Add cover to cover straw or corn (grain) stalks around the shed to increase the temperature of the shed by 1°C～2°C. Adding a layer of film to the original rake can not only block the snow, but also enable the shed to be covered. Room temperature 2 °C ~ 3 °C. At the same time, regular cleaning and scrubbing of the shed film can increase light and heat and increase the temperature of the shed.
Adding black objects When the greenhouse is nursed or transplanted, some fine bituminous coal can be sprinkled on the floor to make the ground black, or the carbon black can be mixed with wine, and the ground can be sprayed with water to make the entire shed a solar cooker. Shed temperature rose 2 °C ~ 3 °C.
The double-layer cover film reins below the drop-free film and a layer of film is placed over the wire. Air is interposed between the cover film to significantly increase the temperature of the booth.
Hang a light curtain on the back wall of the booth to hang a plastic film coated with a metal layer or tin foil, and suspend it every 2 to 3 meters to reduce the absorption of heat energy in the body and increase the temperature of the greenhouse by 2oC ~ 3oC. Increase the lighting of the greenhouse, which is conducive to the growth and development of vegetables.
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