As the winter season is approaching, temperatures begin to drop sharply. To prevent the adverse effects of severe weather, reduce the loss of greenhouse vegetables, and increase the output of vegetables, special attention should be paid to the production and management of greenhouses: First, the maintenance studio Entering the winter season, warmth and antifreeze are the basic requirements for the production of vegetable facilities. Otherwise, once it is chilled, it will cause irreparable damage. The maintenance and repair of the sheds before entering the winter should be done. Strengthen the overhaul work of the cover film, straw curtain, insulation, etc., and increase the insulation film if necessary. Reinforce the shed body and treat the shed where it is not strong enough to prevent the shed body from collapsing due to snowfall. Drain the drainage around the shed body to prevent rain and snow from accumulating, causing damage to the shed body. Timely maintenance of the power supply line, replacement of the aging line, so as not to be affected by wind, ice and other weather, resulting in the studio can not work. Second, regulate the environment of the shed The greenhouses in the winter season usually have higher humidity and weaker light, which requires the watering interval to be appropriately extended. At the same time, the use of fertilizers should be appropriately increased, combined with rooting fertilizers such as roots, roots, etc., to promote more rooting of vegetables. In order to reduce the occurrence of diseases, watering time should be selected as sunny as possible to ensure lower humidity in the shed at night. In order to improve the cold-resistance and stress-resistance of vegetables, the leaves can be sprayed with bi-protecting, ice-protecting, and love-absorbing. Third, strengthen pest control In the early winter season, the environment of the sheds was closed tightly, the humidity in the sheds was relatively high, and pests and diseases were prone to occur. Therefore, the prevention and control of pests and diseases in sheds was the focus of shed management. Priority should be given to the prevention and control of insect nets, yellow traps, and high-temperature stuffy sheds. Spraying is best done at noon on sunny days. At night, aerosols such as chlorothalonil, procymidone and isoprocarb can be used for fumigation. Fourth, pay attention to weather changes In the early winter season, the outdoor temperature dropped sharply and the weather changed greatly. Attention should be paid to watching the weather forecast and measures should be taken to prevent the hazard of severe weather. Yancheng Rongtai Labware Co.,Ltd , https://www.rongtailab.com