Smoke around the shed: Before the cold flow arrives, smoke is ignited around the shed to prevent the surrounding heat from radiating into the air. However, it cannot be heated and ignited in the shed with firewood. The smoke emitted from the firewood is extremely harmful to the vegetables.
Increase the cover: Put straw or corn (straw) around the shed to increase the temperature of the shed by 1-2°C. Add a layer of film on the rake to not only block the wind, but also make the shed. Room temperature increase 2-3 °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 blacken the ground, or carbon black can be mixed with wine, and the ground can be sprayed with water to make the entire shed a solar cooker. Increase the shelf temperature by 2-3 °C.
Double-covering film: In the drip-proof film below the reins, a layer of film above the wire, which is separated by air, can significantly increase the temperature of the studio.
Hanging light curtain: Hang a plastic film or tin foil coated with a metal layer on the back wall of the booth. Hang one every 2-3 meters to reduce the absorption of heat energy in the body and increase the temperature of the greenhouse by 2-3°C. Increase the lighting of the greenhouse, which is conducive to the growth and development of vegetables.
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