A good way to prevent vegetables from chilling

Indoor heating

1. When the outside world cools down significantly, firewood or coal can be temporarily used for combustion, and the room temperature can be increased through the stove, flue, and direct heat dissipation.

2. Hot water, hot air and steam discharged from wineries, paper mills, smelters, etc. can be used as a heat source for greenhouses where conditions permit.

3. Add hot organic fertilizer, that is, before planting vegetables, bury 5 cm to 10 cm thick semi-mature hot organic fertilizer (such as horses, donkeys, sheep manure, etc.) in the depth of 10 cm to 15 cm below the ground. ).

Outdoor insulation

1. Set up a windbreak around the greenhouse to reduce wind speed.

2. Soil around the greenhouse to increase the thickness of the greenhouse wall.

3. Dig cold trenches around the greenhouse, fill the trench with slag, rice husks, etc., cover the top of the trench and keep the trench dry.

4. Increase the cover of the greenhouse, such as thick grasshoppers (curtains).

5. Do a good job in the connection and caulking of various parts of the greenhouse to prevent intrusion of cold winds.

6. Try to fight for a longer duration of light. If you can reach the sunlight, you should immediately remove the cover of the grasshopper (curtain).

Indoor insulation

1. Can be covered with plastic film, buckle small arch, moving screen surface and other layers of insulation methods.

2. Add a multilayer grasshopper (curtain) on the inside of the large perimeter, which is both windproof and warm.

3. Fluorescent lamps can be installed in the greenhouse (the lamp is kept at a distance of 50 cm from the leaves of the plant) and the lamp is irradiated for 10 hours to 12 hours per day.

4. Set the workroom at one end of the greenhouse, and hang thick curtains at the entrance and exit to prevent cold wind from intruding.

5. Cover with no drip film. In addition, timely spraying of potassium dihydrogen phosphate, rare earth micronutrients, and sprays on vegetables and other crops in greenhouses, as well as the application of carbon dioxide, can not only promote the increase in yield, but also significantly increase the resistance of vegetables to cold temperatures. .

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