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Slow-release fertilizerA synthetic apatite containing agronutrients and a method for making the apatite are disclosed. The apatite comprises crystalline calcium phosphate having agronutrients dispersed in the crystalline structure. The agronutrients can comprise potassium, magnesium, sulfur, iron, manganese, molybdenum, chlorine, boron, copper and zinc in amounts suited for plant growth. The apatite can optionally comprise a carbonate and/or silicon solubility control agent. The agronutrients are released slowly as the apatite dissolves.
Document ID
20080004767
Acquisition Source
Headquarters
Document Type
Other - Patent
Authors
Ming, Douglas W.
Golden, Dadigamuwage C.
Date Acquired
August 24, 2013
Publication Date
July 18, 1995
Subject Category
Inorganic, Organic And Physical Chemistry
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
US-PATENT-5,433,766
Patent Application
US-PATENT-APPL-SN-243335

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