It is white in color and in the form of prills or granules. It contains the highest amount of nitrogen among the nitrogenous fertilizers sold in the market, and there is 46 kilograms of pure nitrogen in 100 kilograms. It is a top fertilizer that can be used at all stages of plant development in order to meet the nitrogen needs of plants in all crops. Plants meet their nitrogen needs mostly from nitrogen sources in the form of ammonium and nitrate, so they can use urea as a nutrient by taking urea directly into their body. However, in order for this fertilizer to become more beneficial to plants, it must be broken down into ammonium or nitrate. In this respect, especially when urea fertilizer is used as top fertilizer, it should be applied earlier than fertilizers such as ammonium sulfate and ammonium nitrate. In insufficient use, the development of the plant slows down, the leaves turn yellow and the yield decreases.