Prilled urea forty six% includes 46% of nitrogen (N) in ureic form, quickly absorbed through the leaves of plants. Absorption with the root system is slower, because urea in soil is converted (being a result of enzymatic hydrolysis) into the ammonia form available for plants, and then into nitrate form. https://franciscowuttm.ja-blog.com/37180572/how-fertilizer-npk-19-19-19-can-save-you-time-stress-and-money