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When I worked for a Ukrainian production holding, we produced a lot of UAN. Yes, we used exactly that verb-"to brew." Whenever we had an issue with urea quality (high biuret content, in particular), we would make UAN. And I must say-farmers still like it. Urea and UAN (Urea Ammonium Nitrate) liquid fertilizers are widely used by farmers across the globe. Both have unique properties, applications, and benefits, making them suitable for different scenarios.
Both urea and UAN are primarily used to supply nitrogen to plants, a critical nutrient for plant growth. Urea contains 46% nitrogen, making it one of the most concentrated nitrogen fertilizers. UAN, on the other hand, is a liquid mixture typically containing 28–32% nitrogen, combining urea, ammonium nitrate, and water.
Urea and UAN can be used on a wide range of crops, including cereals, fruits, vegetables, and ornamental plants. They can be applied to both large-scale agricultural fields and smaller garden plots, making them versatile options for different farming practices.
Both fertilizers can be applied using various methods, such as broadcast spreading, banding, and foliar feeding. Urea can be spread as granules, while UAN is typically applied through fertigation (injection into irrigation water) or as a spray. This flexibility in application methods allows farmers to choose the best approach for their specific needs.
