How to manage the greenhouse in winter
With the arrival of winter, the outside temperature is getting lower and lower, and the production of solar greenhouses and winter sedges is entering the critical period of management. In daily management, special attention needs to be paid to the following management: Lighting management. Using drip-proof multi-functional shed film covering, often cleaning smashed grass and dust on the film to increase incident light; paying attention to reasonable close planting and plant adjustment to reduce indoor blindness; hanging reflective screen in front of indoor back wall to increase shed rear vegetable lighting Timely exposing grasshoppers to extend the duration of light, cloudy snow weather, but also to cover the grasshoppers, so that plants receive scattered light. Temperature management. Improve greenhouse sealing. Greenhouses should be closed doors and windows, set up double doors and hanging haystacks, plug all gaps, reduce heat release gap. Stick to multiple layers of coverage. Solar greenhouse temperature conditions generally meet the needs of crop growth during sunny days. If it is at night, cloudy days and snowfall days, it can be used to cover the old shed film, cold cloth, etc. to increase greenhouse warmth. Correctly grasp the time for uncovering the grassland. Generally when the sun shines on the entire shed (the front roof), the curtain can be uncovered. When the temperature reaches 28°C, the air is released. When the temperature rises to 32°C, the air outlet is cooled to reduce the temperature. When the temperature drops to 26°C, the air outlet and the temperature after the air outlet are When it is lowered to 20°C, cover the grass. Digging the cold-proof ditch in front of the greenhouse can reduce the horizontal conduction of soil heat and effectively increase the temperature of the front ground. Humidity management. High humidity in the shed is the main cause of the disease. Various measures should be taken to reduce the humidity in the shed. Ventilation and ventilation is an effective measure to reduce indoor humidity. When the indoor humidity increases, the ventilation opening is opened. The size of the outlet opening and the time of air release can be controlled according to the climatic conditions. High ridge cultivation was adopted and the mulching film was fully covered. When watering, submerged or underdrain irrigation was used. KN95 Face Mask,Disposable KN95 Masks,95% Filtration Mask,KN95 Civil Mask Ningbo Wellway Optoelectronic Technology Co.,Ltd , https://www.wellwayopto.com