First, the cultivation and management of energy-saving solar greenhouses: this month is the shortest period of time in a year, coupled with an abnormal climate this year, more cloudy and weak light, so that overwintering cucumber, tomato, pepper and other crops grow weak, early and Several diseases occur simultaneously, resulting in low and unstable yields. To this end, measures should be taken to improve the crop's own stress resistance, spray growth regulators + foliar fertilizers, such as Yunda 120+ Methola, Yunda 120+ Jinchunbao, sprayed once every 5 to 7 days, or in combination with pesticides. Spraying promotes crop growth. Followed by strengthening the management of rainy weather, rainy days, snow days, foggy days also have to lay bare grasshoppers, to properly cover the early cover, as long as the temperature does not fall, we must try to extend the time to see light (scattered light). The lowest temperature in the sheds of fruits and vegetables should not be lower than 8-10°C. If the temperature in the shed is too low, the grass rakes should be covered with lids at noon, and proper ventilation should be performed. The light roasts the bad seedlings, and there is a phenomenon that the dead seedlings are not frozen in the cold and the heat is dead in the sunny days. Second, disease prevention and control: At present, most cucumbers have been infected with downy mildew, blight, bacterial angular spot, gray mold; tomato infected with leaf mildew, late blight, gray mold; pepper blight, leaf spot, gray mold Wait. In terms of prevention and control, we must adopt a broad-spectrum fungicide, such as Beste + Dasheng M45 + Yunda - 120, or Anke + Jinyunda - 120, or Phytophthora lucidum + calcium Darling, etc., can effectively control the downy mildew Diseases, diseases, tomato late blight, can also improve the resistance of the crop. Spraying Lectra + Mexiole on Tomato Leaf Blight and Pepper Leaf Blotch; Applying Ash to Tilapia + Gray Tirel, Nongli Ling + Agri-Economy, or Botrytis Cine + Calcium Darling to Grey Boll Disease, Spraying on bacterial leaf spot can kill 2000+ Yunda-120, or agricultural streptomycin+ Jinyunda-120, and use several pesticides alternately to improve the control effect. Third, sowing varieties: the winter warm shed for planting two crops can be seedlings in early December in winter and spring cowpea varieties are Shuangfeng, Green Dragon, Thailand bean king, Bai Yucui; bean varieties have improved 906, Feng and Zhi 28-2; mid-cultivation cucumber varieties include Shengfeng No.3, Jinlu No.3, and Jinyou 30; Xihu varieties include Jinghu No.1, No.2, Jingying, and French fiddlers; and watermelon varieties include Jingxin. Series, Zheng Za 9 and Xi Nong 8 et al. In the middle of the nursery, the size of the greenhouse was 18%, Pink Queen, Winner, Century Fenxing, L402, Chifeng Haifeng 179, Haifeng 7, 9185, Sujiao No. 5, Eggplant Zaofeng No. 1, Guozhuang Changqian, etc. Variety. In the winter warm shed slightly less warm, you can apply geothermal line or multi-layer coverage. Dilution with Jinfulai 50- to 100-fold seed soaking for 1 hour to 2 hours can effectively improve the low temperature resistance and disease resistance of the seeds. Source: Licheng District Vegetable Bureau of Jinan City, China Agricultural Network Editor