Green Options » fertilization http://greenoptions.com/tag/fertilization Posts tagged 'fertilization' Wed, 17 Oct 2007 16:56:50 +0000 http://wordpress.org/?v=2.5.1 en Terra Preta for Carbon Reduction http://greenbuildingelements.com/2007/10/17/terra-preta-for-carbon-reduction/ http://greenbuildingelements.com/2007/10/17/terra-preta-for-carbon-reduction/#comments Wed, 17 Oct 2007 16:56:50 +0000 Philip Proefrock http://greenbuildingelements.com/2007/10/17/terra-preta-for-carbon-reduction/ Terra preta (or agrichar, as it is also sometimes called) is not a new concept, but it is probably unfamiliar to most readers. The term terra preta refers to rich black soils found in the Amazon. These soils are not natural, but were human-made, produced by the civilizations living in the region before the arrival of Western settlers. The terra preta has a high level of nutrients, with three times the nitrogen and phosphorus and twenty times the carbon of normal soils. But producing fertilizer is not even the most interesting part of agrichar. The agrichar process also releases gasses which can be used as fuel for electrical generation or even for powering vehicles, and, most interestingly of all, more carbon goes back to the earth than was released in the process.

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