Frequent haze weather has recently occurred. This type of weather has a greater impact on greenhouse vegetable production. Haze and haze days have a short duration of light, which is not conducive to photosynthesis and affects the normal growth of vegetables, resulting in a decline in yield, deterioration of quality, and aggravation of diseases and pests. . Here are the main points of production and management of greenhouse vegetables in haze weather. One, early cover late, increase the temperature Immediately after the fog spreads, the grasshopper will be lifted, and the time for covering the canopy will be appropriately delayed in the evening to prolong the lighting time, which will be beneficial to the increase of the indoor temperature. Shorter vegetables, timely covered with a small shed, such as spinach, rape, cauliflower, cabbage, etc., can be covered with a small plastic shed above the vegetable shed, play a role in warming insulation. Second, clean the film, increase lighting Wipe the shed film gently with a dry mop or a clean soft cloth to remove dust, grass clippings, leaves and other dirt on the shed film, increase the transparency of the shed film, increase the indoor light intensity, and help improve the temperature and organic matter. The manufacture and accumulation. Third, scientific water, reduce disease In the hazy days, the content of water vapor in the air is very large, and the humidity in the greenhouse is also very large. At this time, it is not necessary to water or water as little as possible to prevent the humidity in the shed from increasing. PCR Reagent For Respiratory Infections PCR,PCR Reagent,Molecular diagnosis,Respiratory Infections Shenzhen Uni-medica Technology Co.,Ltd , https://www.unimed-global.com