Natural organic fertilizer
Revision as of 22:16, 22 May 2008 by Kdanneberger (talk | contribs)
1. Fertilizers derived from complex organic compounds not readily soluble in water. See also Organic fertilizer and Synthetic organic fertilizer.
2. A nutrient source of plant or animal origin, typically with low nutrient analysis and requiring soil microbial activity to convert nutrients to plant available forms.
This image is an example of a kind of natural organic fertilizer originating from something living.
Source: http://www.urbanext.uiuc.edu/firstgarden/basics/dirt_06.html