In winter, severe cold weather, strong winds, heavy snowfall, and low-temperature and low-temperature weather often occur, which are extremely unfavorable to vegetable production, and even cause great losses. Therefore, in winter vegetable production and management, we must pay close attention to listening to the weather forecast and take early preventive measures. 1. The management of cold weather and cool weather. In the event of severe cold, facilities vegetables can take the following emergency measures: First, take the method of adding film, adding straw, etc., cover the insulation in multiple layers; second, reduce the ventilation time and maintain the temperature; third, use various temperature-increasing facilities to artificially increase the temperature. , such as dedicated temperature lights. 2. The management of windy weather. First, before the strong winds approach, it is best to press the film rope or wire between the arch rods to prevent the film rope from breaking the film. Second, close the vents during daytime winds, and increase the film line appropriately. Tightening and tightening, solid film windproof; Third, if there is a strong wind at night, in addition to the straw and rain film cover, and press the two things in the lateral pressure of the two wire or film rope to prevent night winds lifted. 3. Snowfall management. In advance of the greenhouse, slopes on the top of the roof and outside the wall shall be covered with anti-rain equipment such as plastic film or asbestos to ensure that the wall is not damaged. In the event of heavy snowfall, pillars were added to reinforce the shed body, which increased the pressure resistance and prevented the collapse of the shed body. Timely cleaning of snow on the shed and snow on both sides of the shed to prevent absorption of large amounts of heat while melting to reduce the temperature inside the shed. When removing snow, damage to the film should be avoided. After the snow stopped, timely removal of insulation or straw cover made the seedlings visible. After the continuous cloudy snow weather has suddenly cleared, clear the curtain and pay attention to observe the changes in the seedlings and find the wilting. . 4. The management of haze and low temperature weather. Haze and overcast weather can easily cause lack of light and can easily cause outbreaks and epidemics of diseases and insect pests. Response measures: First, try to scatter light, as long as the temperature is not very low must be unveiled to see the light; second is to timely clean or wash the dust and grass residue on the film, increase the transmittance of the film, in time pruning Go to the old leaves; third is the fill light temperature lights can be opened at the same time, hanging reflective screen, increase the northern light, artificial warming fill light; four is to reduce or stop water top dressing, avoid vegetable roots; five is the choice of aerosol or dust when fighting drugs Agents, control of humidity and disease prevention; Sixth, fruit picking in time, reduce nutrient consumption, and appropriate foliar spray fertilizer, enhance plant resistance. 5. The remedial measures after the sheds are frozen. First, slowly warming, can not immediately close the shed heating, to avoid sudden increase in temperature caused by frozen vegetables frozen tissue; Second, artificial water spray, increase the air humidity inside the shed, stabilize the shed temperature, inhibit the dehydration of frozen tissue, promote tissue water absorption The third is to timely cut the frozen stems and leaves and fruit, in order to avoid tissue moldy lesions, causing disease; Fourth, topdressing available fertilizer, available 0.3% urea + 0.2% potassium dihydrogen phosphate or other foliar spray foliar Fifth, spray some protective agents and pharmaceuticals in time to prevent and treat pests. Disclaimer: Some articles in this website have been transferred from the Internet. If you are involved in third party legal rights, please inform this website. phone There are many kinds of plant extracts, and their main functions in skin medicines, curative cosmetics and cosmetics include: anti-irritant, anti-inflammatory, wound healing, anti-infection, sterilization, Moisturizing, skin protection, etc. Whether it is a single Plant Extract or a compound extract, its efficacy is often various, especially the clinical efficacy of compound extract is reflected in the comprehensive effect and overall effect of compound compatibility, and its efficacy is sometimes more effective than separation and purification. The efficacy of the combination of ingredients is good. Natural plants,Resveratrol Powder Rapamicina,Grape Seed Extract,Green Tea Extract Benefits,Siberian Ginseng Extract Powder Xi'an Henrikang Biotech Co.,Ltd , https://www.henrikangbio.com
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