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Farm Radio Weekly is a news and information service for rural radio broadcasters in sub-Saharan Africa. It is published by Farm Radio International.

Farm Radio Weekly

Notes to broadcasters on human urine as fertilizer :

Human urine is readily available, costs nothing and contains many nutrients that plants can use to develop and grow. It is sterile in the body. As it leaves the body, it naturally picks up some bacteria. Very few diseases, however, are transmitted through urine. Handling urine is low risk.  But it should not be applied to plants directly. It should be applied to soils only when diluted, and often works best in combination with ash, or when added to and applied in compost. It is often regarded as a waste material, and many people shy away from using it. When used carefully, however, this waste material can increase yields and be a useful, affordable resource for farmers.

For more information on the use of human urine in agriculture, you may refer to some of the following articles:
This leaflet provides concise details about how to use human urine as a fertilizer:
https://www.uni-hohenheim.de/respta/poster/urine_fert.pdf
Researchers in Finland and Sweden have been examining the effectiveness and safety of human urine as fertilizer: http://www.scientificamerican.com/article.cfm?id=human-urine-is-an-effective-fertilizer
They specifically looked at using a mixture of urine and ash as tomato fertilizer: http://www.scientificamerican.com/blog/post.cfm?id=p-is-for-plants-human-urine-plus-as-2009-09-04
The use of night soil, or human excrement, is a centuries-old tradition in China. See:  http://www.agroecology.org/Case%20Studies/nightsoil.html

The use of urine and night soil is also found in Africa. Here is a magazine article with a case study from Tanzania, where local farmers made the most of all available resources to improve their soils and productivity: http://www.leisa.info/index.php?url=getblob.php&o_id=209105&a_id=211&a_seq=0

Farm Radio Weekly published a story from Uganda about farmers using human urine as fertilizer:
-Uganda: Farmers find that human urine is an effective fertilizer, (FRW#14, March, 2008.)

You may wish to host a call-in or text-in show that invites local farmers to share their experiences using unconventional “waste” materials in agricultural production:

-Have any farmers in your area tried using human urine as a fertilizer? How do they collect and store it?  -What application procedure did they find most effective (for example, how much did they dilute the urine and how often did they apply it)? What kind of results did they see?
-What other locally available “waste” materials do farmers use to make fertilizers, pesticides, or other useful materials? Where did they get the idea? Did they develop it from an existing practice or adapt it according to their needs? How did they test the materials and what were the results? Can they describe exactly how they make and use the material to get the best results?

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