Üre
It is a granular, white, water-soluble fertilizer with the highest nitrogen content among nitrogenous fertilizers. It meets the nitrogen needs of plants with both soil and foliar application. Its formula is CO(NH2)2 – 46% N (nitrogen). It is an amide fertilizer due to the presence of carbon (C) in its structure and the nitrogen in its structure being in the form of NH2. Although it dissolves easily in water, the nitrogen (NH2) in its structure is not in a form that can be immediately taken by plant roots. In order for the nitrogen in its structure to become useful, the urea bacteria in the soil must convert the urea into ammonium (NH4) nitrogen with an enzymatic reaction. For this, the temperature of the soil and the amount (concentration) of urea bacteria in the soil are important. For this reason, urea fertilizer is included in the slow-acting fertilizer group.
