IVth INTERNATIONAL SYMPOSIUM ON DETERIORATED VOLCANIC SOILS
(Use and Management of Tepetates, Talpetates, Cangahuas, Trumaos, etc.)

July, 1 to 8, 2006 in Morelia, State of Michoacán and Tlaxcala, State of Tlaxcala, MEXICO

"Satellite-Symposium"
affiliated to the 18th World Congress of Soil Sciences (WCSS), Philadelphia, USA, 9-15/07/06.

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