Prilled urea forty six% incorporates 46% of nitrogen (N) in ureic form, simply absorbed from the leaves of plants. Absorption through the root system is slower, because urea in soil is converted (being a results of enzymatic hydrolysis) into the ammonia form available for plants, and after that into nitrate https://charlieedbzv.eqnextwiki.com/5196096/the_basic_principles_of_npk_ferterlizer