Before the storm hits
2022-10-29 10:05:08
Since the beginning of the winter this year, the province has not encountered strong snow and snow, but the production and management of facilities for vegetables cannot be relaxed. Instead, it is necessary to take precautions in advance, repair and tinker with old facilities, and strengthen management within the facilities to prevent snow and snow. The raid has a major impact on production.
Overhaul - ensure safe and secure room
Checking whether the shed film is damaged Focus on the front face of the shed and the outlet of the shed, including loopholes in the bamboo poles, iron bars, and birds. Do not underestimate these small mouths. When the wind blows, the loopholes will gradually expand. The cold wind will pour into the shed, and the cold damage caused by the vegetables will cause a decrease in production. The shed film will be lifted, the greenhouse will be destroyed, and the vegetables will be produced. Therefore, it is advisable to carefully inspect the film around the greenhouse to ensure that the soil is tightly packed and that the holes in the shed film are repaired with tape.
Check whether the scaffolds are old sheds that have been planted for many years. The bamboo poles are old, the columns are skewed, and they are poorly secured. They can easily collapse after being hit by heavy snow. A steel pipe can be used as a temporary brace at the front face of the greenhouse, with the south slope as a support, and the support point at the intersection of the frame and the column. This will greatly increase the bearing capacity at the front face of the greenhouse and reduce the probability of the collapse of the greenhouse. When the columns in the middle of the shed are reinforced, they can be turned into waste, and the broken old columns are bundled in the ground with the original columns. At the same time, they are fixed in triangles with inclined sticks to increase their firmness and greatly improve the compression resistance. ability.
Check whether the lamination line is fastened and stiff after using the lamination line for a long time. When the wind is blown, the lamination line is subjected to excessive pressure and is easily broken, resulting in the loosening of the shed film. When the wind is large, the shed film is lifted. huge loss. In addition to this reason, the rusting or loosening of anchors can also lead to the above-mentioned consequences, and farmers should pay attention when checking.
The inspection of the maintenance condition of the back wall is easily overlooked in production. In fact, the back wall of the greenhouse is on the shady side, and there is less light. After snow, the snow melts slowly. The melted snow water infiltrates into the back wall of the greenhouse, which will inevitably reduce the temperature of the greenhouse and affect the firmness of the back wall. Therefore, the maintenance work of the back wall of the greenhouse is also very important. The back wall can be covered with waste plastic film and non-woven fabrics. In the summer, it can prevent rainwater erosion, weeds grow, winter can prevent snow water, and improve the insulation effect of the back wall.
Insulation - ensuring proper growth of sheds
As the snow storm hits, the outside temperature is lowered. Under the premise of ensuring the safe and firm greenhouses, the greenhouse insulation must be highly valued. Insulation measures can be taken in advance, such as covering two layers of grasshoppers with a layer of film, ridging and covering with a “shed in the shedâ€, covering the grass with a shed in front of the greenhouse, and using electric wires. In addition, under cloudy snow weather, the greenhouse insulation can also start from other aspects.
Cleverly set up the film, strengthen the heat and snow on the night before the advent of vegetables, farmers will be good to cover the greenhouse. Usually, vegetable growers press down a whole piece of plastic film from the back wall of the greenhouse to the front surface of the greenhouse, or pull it from the front of the greenhouse to the back wall of the greenhouse. The wind is often stronger before the snowfall. This is very laborious when pulling the film. The best method is to divide a whole piece of film into two pieces. A thick nylon string is pressed into the film along the mucous membrane. When the film is covered with a film, the film is pulled directly from both sides of the gable to the middle of the greenhouse. The wind direction is staggered, and then the semi-full sandbags are used to compress the film on the front face and back wall of the greenhouse, pressing an average of 1 bag every 5 meters to ensure that the wind will not pour in.
Add straw reactor to increase ground temperature
The corn straw is piled on the planting line, and at the same time it is sprayed with biological inoculants to increase the ground temperature by utilizing the heat released by the microbial fermentation activity. This is called straw reactor technology. This technology has a significant effect on raising the ground temperature during the winter period. According to the experiment, after the straw reactor was installed, the ground temperature was 2°C~3°C higher than that set.
To improve the cold resistance of vegetables and improve the cold resistance of crops can be started from two aspects: First, conservation of the root system. If the root system of the plant is very weak, the supply of water and nutrients is limited, and the plant is “hungry†all day long. Where does it have the strength to protect against cold? Therefore, the cultivation of vegetables in winter greenhouses is a core issue in management. Second, conservation of leaves. The low temperature in the snow-covered greenhouse affects the absorption of mineral nutrients by the roots, resulting in the lack of inorganic nutrients for the plants. At the same time, the light in the shed is weak, the energy is insufficient, the photosynthesis of the plants is limited, and the organic nutrition is insufficient. In the absence of both inorganic and organic nutrients, the disease resistance of the plant itself can be imagined. Before the arrival of heavy snowfall, spraying full-foliage manure such as chitin and alginic acid to supplement the urgently needed trace elements and organic nutrients in leaves can significantly improve the ability of the plants to resist cold.
Overhaul - ensure safe and secure room
Checking whether the shed film is damaged Focus on the front face of the shed and the outlet of the shed, including loopholes in the bamboo poles, iron bars, and birds. Do not underestimate these small mouths. When the wind blows, the loopholes will gradually expand. The cold wind will pour into the shed, and the cold damage caused by the vegetables will cause a decrease in production. The shed film will be lifted, the greenhouse will be destroyed, and the vegetables will be produced. Therefore, it is advisable to carefully inspect the film around the greenhouse to ensure that the soil is tightly packed and that the holes in the shed film are repaired with tape.
Check whether the scaffolds are old sheds that have been planted for many years. The bamboo poles are old, the columns are skewed, and they are poorly secured. They can easily collapse after being hit by heavy snow. A steel pipe can be used as a temporary brace at the front face of the greenhouse, with the south slope as a support, and the support point at the intersection of the frame and the column. This will greatly increase the bearing capacity at the front face of the greenhouse and reduce the probability of the collapse of the greenhouse. When the columns in the middle of the shed are reinforced, they can be turned into waste, and the broken old columns are bundled in the ground with the original columns. At the same time, they are fixed in triangles with inclined sticks to increase their firmness and greatly improve the compression resistance. ability.
Check whether the lamination line is fastened and stiff after using the lamination line for a long time. When the wind is blown, the lamination line is subjected to excessive pressure and is easily broken, resulting in the loosening of the shed film. When the wind is large, the shed film is lifted. huge loss. In addition to this reason, the rusting or loosening of anchors can also lead to the above-mentioned consequences, and farmers should pay attention when checking.
The inspection of the maintenance condition of the back wall is easily overlooked in production. In fact, the back wall of the greenhouse is on the shady side, and there is less light. After snow, the snow melts slowly. The melted snow water infiltrates into the back wall of the greenhouse, which will inevitably reduce the temperature of the greenhouse and affect the firmness of the back wall. Therefore, the maintenance work of the back wall of the greenhouse is also very important. The back wall can be covered with waste plastic film and non-woven fabrics. In the summer, it can prevent rainwater erosion, weeds grow, winter can prevent snow water, and improve the insulation effect of the back wall.
Insulation - ensuring proper growth of sheds
As the snow storm hits, the outside temperature is lowered. Under the premise of ensuring the safe and firm greenhouses, the greenhouse insulation must be highly valued. Insulation measures can be taken in advance, such as covering two layers of grasshoppers with a layer of film, ridging and covering with a “shed in the shedâ€, covering the grass with a shed in front of the greenhouse, and using electric wires. In addition, under cloudy snow weather, the greenhouse insulation can also start from other aspects.
Cleverly set up the film, strengthen the heat and snow on the night before the advent of vegetables, farmers will be good to cover the greenhouse. Usually, vegetable growers press down a whole piece of plastic film from the back wall of the greenhouse to the front surface of the greenhouse, or pull it from the front of the greenhouse to the back wall of the greenhouse. The wind is often stronger before the snowfall. This is very laborious when pulling the film. The best method is to divide a whole piece of film into two pieces. A thick nylon string is pressed into the film along the mucous membrane. When the film is covered with a film, the film is pulled directly from both sides of the gable to the middle of the greenhouse. The wind direction is staggered, and then the semi-full sandbags are used to compress the film on the front face and back wall of the greenhouse, pressing an average of 1 bag every 5 meters to ensure that the wind will not pour in.
Add straw reactor to increase ground temperature
The corn straw is piled on the planting line, and at the same time it is sprayed with biological inoculants to increase the ground temperature by utilizing the heat released by the microbial fermentation activity. This is called straw reactor technology. This technology has a significant effect on raising the ground temperature during the winter period. According to the experiment, after the straw reactor was installed, the ground temperature was 2°C~3°C higher than that set.
To improve the cold resistance of vegetables and improve the cold resistance of crops can be started from two aspects: First, conservation of the root system. If the root system of the plant is very weak, the supply of water and nutrients is limited, and the plant is “hungry†all day long. Where does it have the strength to protect against cold? Therefore, the cultivation of vegetables in winter greenhouses is a core issue in management. Second, conservation of leaves. The low temperature in the snow-covered greenhouse affects the absorption of mineral nutrients by the roots, resulting in the lack of inorganic nutrients for the plants. At the same time, the light in the shed is weak, the energy is insufficient, the photosynthesis of the plants is limited, and the organic nutrition is insufficient. In the absence of both inorganic and organic nutrients, the disease resistance of the plant itself can be imagined. Before the arrival of heavy snowfall, spraying full-foliage manure such as chitin and alginic acid to supplement the urgently needed trace elements and organic nutrients in leaves can significantly improve the ability of the plants to resist cold.
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