Prilled Urea 46% incorporates forty six% of nitrogen (N) in ureic form, easily absorbed via the leaves of plants. Absorption through the root system is slower, because urea in soil is converted (like a results of enzymatic hydrolysis) into the ammonia form available for plants, and afterwards into nitrate form. https://directoryhand.com/listings13585747/rumored-buzz-on-fertilizer-content-of-dap