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Revision as of 15:43, 25 February 2002 by 130.94.122.xxx (talk)(diff) ← Previous revision | Latest revision (diff) | Newer revision → (diff)Fertilizer is a chemical mixed with soil with the intent of promoting plant growth. Fertilizer typically adds to the soil the elements nitrogen, potassium, or phosphorus. Fertilizer can either be created from nature material such as manure or compost or it can created artifically as through the Haber-Basch process which creates ammonia.