How to use urine as plant fertilizer Using urine as plant fertilizer is incredibly simple, but there is one catch: you must dilute it. For most plants, a 1:10 ratio of urine to water is ideal.

Researchers have found a new way to use human urine to make fertilizer for agricultural crops. Their discovery is significant because it can better utilize wastewater in cities and on farms ...

Stanford University researchers have built a photovoltaic-thermal electrochemical stripping system that extracts fertilizer ...