556c8ddb_rganic_Rules_and_Certification__1
[0] Fertilizers, substrates, guano - UK Soil Association Organic Standards 2005 [2] Soil Association standards have further restrictions than EU Regulation 2092/91, where for example guano is permitted as fertiliser where the need is recognised by the inspection body. It is prohibited by the Soil Association standards. [3] Guano extraction is unsustainable on a large scale because of habitat damage and limited reserves. Historically, guano was used as a major nitrate source, but nitrogen fixed from the atmosphere should be the main source of nitrate in organic farming. [1] 
It is prohibited to fertilize the soil with fresh blood, guano, Chilean nitrate, urea, or slaked lime or quicklime. Soil Association Organic Standards. Paragraphs 4.8.12.
Custom php script - Organic Rules and Certification
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