Recently, the haze weather has continued, which has brought a lot of inconvenience to the cultivation of melon. When raising seedlings, I am afraid of encountering cloudy days, especially melon, especially in winter. Most melon farmers use a stove in the shed to raise the temperature to raise seedlings. The temperature is difficult to control. In addition to the haze weather, it is easy to cause the melon seedlings to appear "tall feet." "High-footed seedlings" are also called long-necked seedlings, whose morphological manifestations are few roots, thin stems, thin leaves, pale colors, long internodes, and weak (see photo). This kind of seedlings have poor flower bud differentiation, poor resistance, low survival rate after planting, slow seedlings, poor disease resistance, and cannot be premature and high yield. The appearance of "tall-foot shoots" of melon in the greenhouse is directly related to the high temperature, high humidity, weak light, and small temperature difference between day and night in the greenhouse, especially the high temperature and humidity at night and rainy days, and insufficient light, which will cause the seedlings to appear overnight. Long, quickly formed "tall feet". In winter, haze weather is frequent, and the following measures can be taken to prevent the occurrence of "tall-foot shoots" of melon. Regulate the temperature and humidity at the seedling stage. Double-layer film is used to cover the heat-preserving seedlings. The temperature before emergence should be maintained at 28 ° C to 30 ° C. When 20% to 30% of the seedlings are unearthed, the first layer of film is removed in time. After emergence, the temperature should be controlled between 20 ℃ ～ 25 ℃ during the day and not lower than 15 ℃ at night. In foggy and hazy days, the temperature is mainly controlled by a heating furnace. In the absence of light, a 150-watt light bulb can be hung, one every 2 meters to increase the brightness and temperature to prevent the emergence of long shoots. In terms of humidity, in principle, the seedlings do not show water shortage symptoms and do not water. When the nutrient soil is found to be dry, it can be replenished appropriately. Irrigate the roots with Transplant Spirit or Fujiki once before transplanting. Cool down and refine the seedlings 3 days before transplanting. The use of fertilizers is strictly controlled during the nursery period, and the appearance of tall shoots indicates that the temperature is high, the nitrogen fertilizer is high, and the water is sufficient. While controlling the temperature, strictly control the fertilizers, including foliar fertilizers. If yellowing of the seedlings is found, appropriate phosphorus and calcium supplements can be used to promote root growth and strong seedlings. Spray low concentrations of potassium dihydrogen phosphate and Fujiki water-soluble fertilizer. For the “tall seedlings†that have appeared, choose sunny days, add 1 g of paclobutrazol per 15 kg of water, and spray the seedbeds only once. You cannot spray repeatedly. Disclaimer: Some articles on this website are transferred from the Internet. If you have third party legal rights, please inform this website to deal with them. phone GMP ATS Injection, Tetanus Antitoxin, Tetanus Toxoid ,Tetanus Antitoxin Injection, Antitetanus, Refined Tetanus Antitoxinsupplier in China Tetanus Antitoxin,Tetanus Toxoid,Tetanus Antitoxin Injection,Antitetanus&Refined Tetanus Antitoxin FOSHAN PHARMA CO., LTD. , https://www.forepharm.com