I have this info about it but it’s a bit complicated for my current knowledge
sites.google.com
Perpetual Preservation System - Urea
Urea Urea based aquatic plant fertilizing is becoming more popular lately while not having enough supporting information. I have added this page describing urea recipes, calculations, ratios and other necessities. Urea (carbamide) is an organic compound with the chemical formula CO(NH2)2. It is