When urea is used as top dressing, it can be applied to the roots of crops through the soil and is also suitable for foliar spraying. When urea is needed to apply topdressing fertilizer during vigorous periods of crops, pay attention to fertilization period before application of available nitrogen fertilizers such as ammonium sulfate and ammonium bicarbonate in advance. How many days in advance depends on the season and temperature conditions in early spring (low temperature 10 degrees) 6-8 days ahead of schedule, late spring and early summer (16-20 degrees) 3-4 days in advance, and 1-2 days in advance in summer. Urea is used as a top-dressing fertilizer and is suitable for foliar spraying of various crops. The appropriate concentration is generally between 0.1% and 0.5%, which varies with crop species and growth period. When urea is used for foliar spraying, it must be noted that the content of biuret as a secondary component must be less than 0.5%. In addition, the use of urea and potassium dihydrogen phosphate mixed solution for extra-root fertilizer, sprayed on the leaves of wheat or corn and other crops, is conducive to their grouting to increase 1000-grain weight. The urea contained in the foliar fertilizer is conducive to the absorption of phosphorus and potassium. Urea is not suitable for seed fertilizers.
Electronic Cigarettes
Electronic cigarette is electronic product that generates vapor feel, taste like as a cigarette. Nic does not cause cancer, what really causes cancer are the thousands of harmful chemicals generated during tobacco burning. E-cigarette work as harming reducing product, the vapor contains fewer toxic chemicals in lower concentrations than traditional tobacco cigarette.
E-cigs also have name vape pen, disposable cigarette, it has many flavors such as apple, peach, orange, grape etc, people can enjoy multi-flavored Nic delivery experience through vapor, instead of Tobacco.
Axiswell is a manufacturer of no leak electronic cigarette vape with R&D, production and sales team. Our star products are disposable vape pen, closed pod system, vape pods. Our MOQ is low and we provide OEM/ODM service. We understand good taste and reasonable pricing are important for long term cooperation between us and clients. We wish to cooperate with every clients no matter big quantity or small quantity, reaching win-win outcome!
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Shenzhen Axiswell Technology Co., Ltd , https://www.medhealthycare.com