Winter and spring tube vegetables

Windy weather Vegetable management Winter and spring seasons, frequent occurrence of windy weather, great harm to greenhouse vegetables, plastic greenhouses and other vegetables and open-air garlic production, scraping the shed film, plastic film, scraping grasshoppers and other phenomena often occur, resulting in shed vegetables In addition, garlic in open fields suffers from freezing injury and production is damaged, which should be highly valued. Protective measures: 1. Inspect and reinforce the infrastructure of the scaffolding, repair the damaged shed film in time, close the bleed outlet before the strong wind, seal the shed, tighten the laminating line, press the membrane rope, and press the straw and other coverings. Things. 2. Garlic management should be timely pouring frozen water, tightly cover the film, the full coverage of the film, the winter attention to the protection of the film, the damaged parts in time with the soil pressure, you can cover a portion of the film on the film to prevent wind and corn straw. Rain and snow weather Vegetable management Rain Snow and water Weaken the outer cover of the facility, causing increased stress in the greenhouses and plastic sheds, causing the skeleton to be overwhelmed and breaking, damaging, causing collapse of the shed, freezing vegetables in the shed, and vegetables. Production suffers huge losses. Protective measures: 1. Pay close attention to weather changes and take effective measures as soon as possible. 2. Put a layer of plastic film on the cover of grasshoppers and other facilities to keep the cover dry and improve the heat preservation effect. 3. Arrange special guards during the heavy snowfall to clean the shed area in time and transport the snow out of the field to prevent the ground temperature from falling due to the snow, so as to improve the temperature in the facility. 4. Increase the pillars in the shed to improve the pressure resistance. Heavy snow can easily increase the pressure on the shed. To effectively increase the pressure resistance of the skeletal structure, a row of movable columns can be set up temporarily at a distance of 3 meters from the front of the greenhouse to improve the pressure resistance of the greenhouse. In the low temperature weather vegetable management facilities, solar energy is the main energy source for the production of vegetables, and the cloudy days in winter have a great impact on the production of vegetables. Low temperature and low light can easily cause stagnation of the crops or suffer freezing injury, resulting in reduced production. Protective measures: 1. Prior to the arrival of low-temperature days, spray anti-disease agents or foliar fertilizers in advance to enhance the ability of vegetables to resist low temperatures. 2. Take measures to increase the temperature. In continuous cloudy snow weather, the temperature inside the shed is low and measures should be taken to increase the temperature inside the shed. Conditions can be used to warm the fire, heating furnace heating, fully increase the temperature within the greenhouse to ensure the safety of vegetable plants through the cold season. 3. In the case of even cloudy days, the grass cover must be covered early and covered in full, make full use of the scattered light to increase the lighting of the shed, and hang the light curtain on the back wall of the shed to add light; timely clean the greenhouse film to ensure that the shed film is clean and clean. Light rate; it is also possible to install fluorescent lamps, biogas lamps, etc. in the shed to make up light and promote plant photosynthesis. 4. In order to reduce the occurrence and development of vegetable diseases in the facility, it is crucial to minimize the indoor air humidity. In winter, watering should be strictly controlled. When the crops show drought, they can be poured into small water under the membrane in sunny days. When using pesticides to control vegetable diseases, dust or aerosols should be used as far as possible. 5. Remove the old leaves of the plant in time to increase the amount of direct sunlight to the ground, increase the temperature of the ground, promote the growth of new roots, and also reduce the amount of transpiration of the leaves to prevent excessive water loss and wilting of the plants. 6. To prevent the occurrence of "flash" seedlings. On a continuous cloudy day, do not fully uncover the haystacks after the sudden turn of fine weather, prevent the seedlings that have experienced severe weather from seeing a glare, and suddenly increase the temperature in the shed, so that the seedlings will increase water transpiration and wilting. The method of management, that is, to expose the gaps, cover the gaps, and repeatedly reveal, and wait for the plants to no longer wilt and restore growth, then all uncover the straw. 7. For greenhouses that are severely affected by cold, remove the young fruit in time to ensure the nutrients needed for plant growth and to prevent premature plant failure due to low temperature and low light. For unrecoverable greenhouses, timely clear and replant other vegetable crops.

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