Does Canada use human waste as fertilizer?
Matthew Alvarez
Published Mar 28, 2026
It's the ancient practice of using human waste to fertilize crops. One farmer in east-coast Nova Scotia, says he's been spreading biosolids on his fields for about six years.
Do farmers use human waste as fertilizer in Canada?
Jack Folkertsma knows there are people who just can't accept that he and other Canadian farmers use treated sewage sludge to boost the health of their soil and the production of animal feed like corn.Where does human waste go in Canada?
It is dumped on land without treatment or tests. According to the Canadian Water and Waste Water Association, there are approximately 600 sewage-treatment plants in Ontario through which 4.9 billion litres of waste water or sewage pass each day.Do they use human waste to fertilize fields?
Urine has most of the nitrogen and phosphorus – both key ingredients in fertilizer – from our diets. Feces contain organic matter and nutrients. Both these byproducts of human ingestion can be reused, if treated properly.Do some countries use human waste as fertilizer?
Uses in agricultureThe use of unprocessed human feces as fertilizer is a risky practice as it may contain disease-causing pathogens. Nevertheless, in some developing nations it is still widespread.
What Happens If You Use Your Feces as Fertilizer?
Is Chinese garlic grown in human feces?
Imported garlic is often grown in sewage water and human sewage is specifically used as an inexpensive fertilizer.Can farmers spread human waste on fields?
Human poo can be used as a compost to help fertilise soil so that crops can grow - the product is known as biosolids. Biosolids in the soil will provide nutrients and organic materials for the crops and plants to absorb, such as nitrates and phosphates.How is human waste converted to fertilizer?
Composting ToiletsThe human nutrient cycle goes like this 1) grow food 2) eat it 3) collect and process organic residues (feces, urine, food scraps) 4) return the processed organic matter to the soil, thereby enriching the soil and enabling more food to grow!