Prilled Urea 46% contains 46% of nitrogen (N) in ureic form, quickly absorbed because of the leaves of plants. Absorption through the foundation system is slower, because urea in soil is converted (for a results of enzymatic hydrolysis) into the ammonia form available for plants, after which into nitrate form. https://webdirectorytalk.com/listings1147007/5-simple-techniques-for-sugar-brown-oatmeal