This is an old revision of this page, as edited by 80.13.220.235 (talk) at 10:42, 12 May 2002. The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.
Revision as of 10:42, 12 May 2002 by 80.13.220.235 (talk)(diff) ← Previous revision | Latest revision (diff) | Newer revision → (diff)Fertilizer are substances brought with the intent of promoting plant growth.
Fertilizer typically adds to the soil major elements nitrogen, potassium, or phosphorus, secondary elements calcium, sulfur, magnesium, sodium and sometimes trace elements. 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.
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