Soaking seeds: Soaking seeds with 0.01-0.05mg/L (8-40kg of water per seed) solution for 3 hours can increase the germination rate of seeds by more than 10%, enhance the cold resistance of brown seedlings during germination, and promote the growth of tobacco seedlings.

         Resettling stage and vigorous growth period: Spraying leaves with 0.02-0.04mg/L (10-20kg of water per grain) liquid can increase yield and improve tobacco quality. Spray tobacco 30 days after transplanting, mainly to increase and thicken the lower leaves. 45 days after transplanting, the main focus is to increase and thicken the upper leaves, while enhancing the drought resistance of the tobacco plant. It also has a significant preventive effect on leaf spot disease and mosaic disease. In the later stage, the yellowing is good, and the yield increases by 20% to 40%. You can also spray leaves  with a concentration of 0.01mg/L solution per acre 20-50 days after transplantation, which can promote the growth of tobacco seedlings and improve their resistance. In the later stage of tobacco growth, it can promote the growth and development of tobacco plants, expand the leaf area of individual plants, promote photosynthesis and material transport distribution, improve the chemical composition of tobacco leaves, increase nicotine content by 39.4% to 76.7%, and increase the proportion of high-quality tobacco.