Prilled Urea 46% includes 46% of nitrogen (N) in ureic form, very easily absorbed via the leaves of plants. Absorption through 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 into nitrate https://oxodirectory.com/listings13594954/detailed-notes-on-limestone-export-supplier-cement-industry