Prilled urea 46% contains 46% of nitrogen (N) in ureic form, simply absorbed through the leaves of plants. Absorption through the root system is slower, because urea in soil is transformed (for a result of enzymatic hydrolysis) into the ammonia form available for plants, then into nitrate form. Insert to https://ezmarkbookmarks.com/story20300329/borlotti-beans-gluten-free-fundamentals-explained