In spring, there are more windy weather, and the greenhouse film is easy to be peeled or torn. Therefore, strengthening the greenhouse is the key to ensuring the safe production of vegetables. Is there any good way to strengthen the greenhouse? The following suggestions are for your reference:
Listening to the weather forecast in time, and taking reasonable response measures based on the forecasted wind force is the basis for preventing gale damage. Generally speaking, northerly winds below level 5 do not pose much threat to the grass thatch and shed film, but level 4 westerly or east winds can blow over the grass thatch. Therefore, it is necessary to forecast the magnitude and direction of the wind and cover the shed in advance. The object is compacted. As the temperature rises, even if the floating film is not placed in the greenhouse, the temperature in the greenhouse can be maintained above 18°C ​​after the grass thatch is placed. However, do not rush to remove the floating film before withdrawing the grass thatch. Put the floating film down quickly when encountering sudden strong winds and rains to prevent the grass thatch from being blown over by the strong wind or being wetted by the rain.
If it is a westerly wind or a westerly wind, for the floating film fixed on the back slope of the shed, you only need to press the west side of the floating film well, and do not press the east side, so that even a small amount of wind blows into the bottom of the floating film to form an air pocket , The air in the air bag will also be quickly driven out, so that the floating film is close to the grass thatch, so as to prevent the floating film from being blown up by the strong wind, and the grass thatch is blown over; when the easterly wind or the easterly wind is blowing, the opposite method of laminating the film is adopted. . The same is true for the greenhouse film. A piece of film can be pressed upwards at the bottom of the greenhouse gable to block the joint between the greenhouse film and the gable wall to prevent the wind from blowing in from the bottom of the greenhouse film and breaking the film.
If there are tall objects near the arch shed, the number of laminating ropes should be increased, and the entrance and exit of the arch shed should be sealed tightly to prevent airflow from entering.
For the reinforcement of the arch shed, a windproof film can be installed at the bottom of the east and west sides of the arch shed. The width of the windproof film should be from the underground on one side of the arch shed to the uppermost vent. For example, when a westerly wind blows, set up the windproof film on the west side, so as to prevent the strong wind from entering the shed from the vent on the west side of the arch shed, and prevent the wind from breaking the shed film. If the wind power exceeds level 6, open the vent on the leeward side of the arch shed to ensure that the airflow in the shed is discharged. For the arch sheds in the east-west direction, attention should be paid to strengthening the wind resistance of the shed films on both sides. One is to seal the inlet and outlet tightly, and the other is to set more laminating ropes on both sides of the shed. However, it should be noted that the membranes on both sides of the shed have a certain angle of inclination, which is not easy to fix with a film pressing rope. A wide cloth strip of about 5 cm can be used to pull it on the ground anchor at a perpendicular angle to the shed film.
The greenhouse where the roller shutter machine is installed has a certain wind resistance, but the wind resistance is limited. Once the wind is too strong, when the high wind blows the grass thatch over, it will directly tear the fixed place of the grass thatch, and the loss caused is more than that of not installing the roll. The large shed of the curtain machine is heavier, so do not completely rely on the roller shutter machine for wind protection. When the wind is greater than 5, in order to avoid accidents, the floating film should be put down for wind protection.
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In the Arbas region of 105° east longitude and 40° north latitude where the temperature fluctuation between day and night can reach 50 degrees in winter, there is an essential native goat breed, the purebred Arbas Baby Cashmere Goat, which features thin and soft hair, a pair of horns and pink ears. Arbas Baby Cashmere Goat looks small yet are the nobles of goats.
The famous Arbas Baby Cashmere Goat, as a rare breed living in the Ordos Plateau of Inner Mongolia, is concentrated in Otog Banner, Otog Front Banner and Hanggin Banner in the western part of the Plateau. Sumu, Arbas, Otog Banner is the primary production area of Arbas Baby Cashmere Goat for its favorable natural environment, with Arbas Mountain in the west, vast natural pasture in the center and desert steppe in the south. The semi-arid steppe climate provides excellent conditions for animal husbandry.
Due to its location in the desert steppe, the area is dry and windy with little rainfall and much sand. The temperature difference between day and night is extremely high, and the annual average temperature is 6.4 °C. In the long, cold and dry winter, the lowest temperature reaches -30°C to -40°C late at night, while in the short, hot and arid summer, the highest temperature is 36.4°C and the lowest -32°C, with annual precipitation between 200mm to 400mm. The adorable, lovely and lively Arbas Baby Cashmere Goat grows in such extremely harsh conditions, thus can produce rare and quality cashmere.
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