Prilled Urea 46% contains 46% of nitrogen (N) in ureic form, very easily absorbed by the leaves of plants. Absorption through the basis system is slower, because urea in soil is transformed (for a results of enzymatic hydrolysis) into the ammonia form available for plants, after which into nitrate form. https://ledbookmark.com/story7288104/a-simple-key-for-black-cumin-seed-meal-unveiled