Due to frequent cold air activities, the temperature fluctuates greatly, which has a great impact on the production of various vegetables. In order to ensure the safe growth of vegetables, to prevent the occurrence of frost damage to vegetables and damage to greenhouse greenhouses, all relevant vegetable bases and vegetable farmers should actively take measures to take precautions to avoid losses in vegetable production, ensure a stable supply of vegetable markets and the safe growth of early spring vegetable seedlings. The following three points should be noted:
1. Strengthen the shed film. Inspection and reinforcement of the shed To prevent the wind from damaging the shed film and freezing the vegetables in the facility, all the sheds need to be strengthened with a cover film to effectively improve the insulation and heating effect of the shed. In case of snow, the snow on the roof of the shed should be cleaned in time to avoid the snow from overwhelming the shed, strengthen the shed, avoid the snow and snow to lift the shed film, stick the broken film, support the shed, and strengthen the shed's resistance. Wind and snow capability.
2. Anti-freeze and keep warm. Do a good job of seedlings such as solanaceous fruits and green leafy vegetables in the anti-freezing and warming shed. Be sure to use multi-layer covering with mulching film + small arch shed + middle shed. If necessary, you can also cover it with shading nets and straw bales to ensure that it is not affected by freezing. Open field vegetables (especially leafy vegetables) should be strengthened to prevent frost in the field. You can cover it with straw, film and other insulation materials or apply organic fertilizer to keep cold. For perennial vegetables such as leeks, it is the period of basal fertilizer application, combined with deep cultivation and organic fertilizer improvement to improve soil fertility.
3. Ditch cleaning and drainage. In order to strengthen water management, we need to clear the ditch in time to reduce the humidity of the vegetable field; control watering, dredge the trenches in the field, and deepen the greenhouse ditch so that water cannot accumulate in the vegetable field after rain to prevent the damage caused by poor drainage. After the rain and snow, the vegetables in the open field should be cleared and drained in time to reduce the humidity in the field to prevent waterlogging and diseases caused by poor drainage.
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