Prilled urea forty six% consists of 46% of nitrogen (N) in ureic form, simply absorbed by the leaves of plants. Absorption throughout the root system is slower, because urea in soil is transformed (as a result of enzymatic hydrolysis) into the ammonia form available for plants, and then into nitrate https://manuelqpufa.blgwiki.com/1702859/5_easy_facts_about_npk_fertilizer_aquarium_described