Prilled urea 46% consists of 46% of nitrogen (N) in ureic form, very easily absorbed because of the leaves of plants. Absorption in the root system is slower, because urea in soil is transformed (as a results of enzymatic hydrolysis) into the ammonia form available for plants, and after that https://reallivesocial.com/story5913824/dap-fertilizer-manufacturers-in-russia-things-to-know-before-you-buy