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There is still a large cold spell after the Beginning of Spring, which causes freezing and chilling injury to eggplant and fruit vegetables in the greenhouse. To this end, it is necessary to continue to do a good job in preventing cold and freezing. At this time, eggplant fruit vegetables have had a large growth, so it is necessary to cover with two layers of film in the greenhouse. Melons are more likely to be frozen than eggplant fruits, in addition to using two-channel film cover, rice straw bundles can be stacked in the skirt position around the greenhouse to enhance resistance to cold air invasion around the greenhouse; melon seedlings, which are still in the seedling raising stage, can be covered with sunshade net, straw curtain or non-woven cloth on the small arch shed at night to enhance heat preservation capacity; in case of strong cold air coming, we must do a good job of anti-freezing and heat preservation measures.
Jingzhou customized internal and external sunshade fan water curtain multi-span greenhouse, please check more, when it snows, snow will inevitably bring temperature drop, prepare grass cloak and other thermal insulation items and auxiliary heating equipment such as furnace in advance, in order to supplement the indoor temperature of greenhouse and prevent frostbite. Clear the snow in time after snow has accumulated to a certain thickness or after the snow stops, pay special attention to strengthening the snow removal work at night, the preventive measures at night generally can not keep up with the changes, and the snow cover should be avoided from collapsing the greenhouse and greenhouse. Causing unnecessary losses. After heavy snow, it should be ventilated in time during the day after the weather clears up, but the vents should be properly handled and should not be opened too wide to prevent sudden heat or cold inside the greenhouse from affecting vegetables.
6. Energy saving and environmental protection: electric shutter windows can achieve the appropriate indoor temperature by adjusting sunshade, which can effectively reduce the heat load of air conditioning, absorb solar radiation energy and reduce heating load in winter, thus playing the role of energy saving and consumption reduction. 5. Heat preservation and heat relief: electric shutter windows can effectively prevent strong outdoor light, maintain a steady state for indoor temperature, and are more suitable for work.
The reflective thermal insulation coating with thermal insulation titanium dioxide R404 is used in petrochemical industry, storage and transportation industry, building space structure, outdoor equipment, etc., so that the outdoor need to reduce the surface temperature in the sun and reduce the heat transfer to the interior of houses and objects coating products 135. Specifically used in: such as roof color steel tile paint, outdoor paint, automobile paint, camouflage paint, sun umbrella and tension film coating, equipment thermal shielding coating, leather coating, plastic ceiling and sunshade, artificial plastic turf, plastic walkway materials, outdoor plastic chairs and other coatings.
Felt quilt in order to achieve a good thermal insulation effect, can be covered with a layer of non-woven fabric or sunshade net and other thermal insulation materials, in the presence of very low temperature weather, you can choose to add “shed” to heat preservation. Although the work of heat preservation in cloudy days is important, it should not be blind and needs reasonable regulation and control. In a snowy day, the night temperature is easy to rebound, the plant accumulates less photosynthetic nutrition during the day, but consumes more at night, so it is easy to grow poorly. Therefore, it is very important to regulate the night temperature in overcast, rainy and snowy weather.
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