Translations:Hydroponie/62/en

1L of urine contains on average 6g of nitrogen, 1g of phosphorus (directly assimilable) and 2g of potassium. Nitrogen is in the form of urea, which will be transformed into ammonia on contact with the air. It is this step that produces the odor associated with urine, but it is eliminated by the action of micro-organisms or by storage without contact with air.