Prilled urea 46% contains 46% of nitrogen (N) in ureic form, conveniently absorbed by the leaves of plants. Absorption through the foundation system is slower, because urea in soil is converted (like a results of enzymatic hydrolysis) into the ammonia form available for plants, and then into nitrate form. Diammonium https://bookmarkuse.com/story21313446/npk-fertilizer-with-6-6-6-or-10-10-10-options