Prilled urea 46% contains 46% of nitrogen (N) in ureic form, quickly absorbed by the leaves of plants. Absorption throughout the root system is slower, because urea in soil is transformed (being a result of enzymatic hydrolysis) into the ammonia form available for plants, then into nitrate form. Add to https://cheapbookmarking.com/story20203729/the-greatest-guide-to-npk-fertilizer-how-to-make