1. Temporary warming measures are adopted to reasonably control the temperature in the shed (such as coal stove, heating, etc.). In order to increase the temperature and prevent freezing, a small shed can be buckled in the large grid, and grass can be covered on the membrane at night. As long as it is above the limit temperature, do not warm it (8 to 10 degrees for fruits and vegetables and 10 to 13 degrees for leaf vegetables). 2. Drain the drainage in time to reduce the groundwater level and prevent waterlogging. 3. After ventilation, ventilation and light transmission should be intensified to reduce the humidity in the shed, enhance the photosynthesis of the plants, and reduce the occurrence of pests and diseases. It is recommended to close the gates halfway around noon on sunny days to reduce the amount of ventilation and prevent the plants from wilting due to sunlight exposure. When the sunshine is weak, open the sheds for ventilation. In the evening, close the sheds to strengthen the night insulation, and continue for 3 to 4 days until the ground temperature rises. Normal management. When individual plants show wilting, the lower leaves can be removed. 4, after rainy days, sunny afternoon noon, timely spray 1.8% love to receive more than 4000 to 6000 times liquid + yellow humic acid (dry land dragon) 400 to 800 liquid, 0.2% potassium dihydrogen phosphate 1000 liquid + yellow humic acid (dry land dragon) 400 to 800 liquid or 0.136% bi-protection of 2 to 3 grams per acre, etc. for foliar spray, supplement plant nutrition, prevent and mitigate freezing injury. At the same time, the amount of nitrogen fertilizer should be controlled so as to avoid excessive absorption of nitrogen and absorption of potassium. Physiological potassium deficiency occurs. 5. The prevention and control of pests and diseases is carried out in a timely manner. Affected by the persistently low temperature of rain, the plants grow weakly, have poor quality and are prone to disease. The frozen stems and leaves of dead branches should be promptly removed to reduce the incidence of disease. After the plants resumed their growth, they should use their counterparts at noon during the sunny days for prevention and treatment (such as damping-off, blight, sclerotia, gray mold, and powdery mildew. At the same time, the concentration of the drug should be controlled so as to avoid phytotoxicity. 6, pesticide formulations: Blight, damping-off disease can be used 6875% Silver Pharisee Suspension 600 to 800 times or 96% Hymexin WP 3000 times, etc., to take spray control, spraying 2 to 3 liters per square meter. Spray again after 7 days. Sclerotinia and gray mold can be sprayed with 40% Shijiale suspending agent 800 to 1000 times or 50% acetaminophen suspension 800 times liquid, 52.5% Dupont fasting 2500 times, etc. Note that alternating medication, every 7 Spray once a day. You can also use 10% procymidone smoke or 45% chlorothalonil smoke agent, 200 to 250 grams per acre medication, in the evening with a dark fire and immediately sealed overnight, the next day to open the door ventilation. In addition, 0.1% of acetaminophen suspension was added to eggplant and tomatoes. Powdery mildew can be treated with 50% Caesar dry suspension 1200 times solution or 50% Tribecta dry suspension 5000 times solution, etc., and focus on spraying at the epidemic center and surrounding areas, spraying once every 7 days. Note: Triazoles (triaden), myclobutanil, tebuconazole (Horik), difenoconazole should be used cautiously because triazole bactericides can easily cause crop stagnation at low temperature. Gao), fluorosiliconazole (fuxing) and other triazole fungicides. Ad Red Beet Powder,Hot Air Drying Red Beet Powder,Dehydrated Red Beet Graunle,100% Pure Air-Dried Red Beet Powder Xinghua Jiahe Foods Co., Ltd. , https://www.jiahefoods.com