Strong winds in winter, greenhouses should be prevented in advance
1. It is to choose a shed film with complete functions, anti-aging and strong resistance, such as EVA multi-functional composite film, PO film, etc., not only anti-aging, not easy to tear, but also good in light transmission, which is very beneficial to the production of winter and spring vegetables.
2. Pay attention to watching and listening to the weather forecast. Before predicting the arrival of strong winds, you should check whether the lamination line of the solar greenhouse is firm in time.
3. When the strong wind comes, the ventilation openings and doors of the solar greenhouse are sealed to prevent the strong wind from blowing into the greenhouse, so as to reduce the damage of the film. At night, on the thatch and the outer covering film, press two thin steel cables with cloth covers in the east-west horizontal direction to prevent the thatch from blowing up at night.
4. After the strong wind, if the plants are found to be wilting, the same nutrient solution as room temperature can be sprayed to reduce the wilting and supplement nutrition. Choose fine weather and apply biological bacterial fertilizer to improve root activity and enhance resistance.
If the shed film is overturned and the seedlings are frozen to death, it is necessary to hurry up and replace the stubble with the vegetable nursery to avoid delaying production and update the shed film in time.
