Urea (Urea), Sumy oblast.

Urea (Urea) is a highly effective granulated fertilizer containing in an absorbable form the nutrient element nitrogen (46%) necessary for the growth and development of plants. This is the most concentrated of nitrogen fertilizers. Urea in the soil turns into ammonium carbonate under the action of soil bacteria enzymes. In soils with high biologicalactivity, urea turns into ammonium carbonate in 2-3 days. Ammonium carbonate decomposes in the air and part of it is lost in the form of gaseous ammonia. Therefore, surface application of urea without sealing into the soil threatens with nitrogen loss. Moreover, nitrogen losses can be more significant on neutral and alkaline soils. It is used on all types of soil. It is suitable for the main introduction into the soil and fertilizing of agricultural crops. Can be used in protected soil conditions. On soils experiencing waterlogging, urea is preferable toammonia nitrate during irrigation, as urea nitrogen is better fixed by the soil and less washed out with sediments. It is used as the main fertilizer and as top dressing with immediate application to the soil to prevent losses in the form of gaseous ammonia.