Search for and development of undiscovered phosphate resources in Southeast Asia Richard P. Sheldon

By: Sheldon, Richard PMaterial type: TextTextPublisher: 1983Description: 55 p. ill. 30 cmSubject(s): MineralsSummary: The countries of the humid tropical areas of the world lack the soill fertility necessary for high agricultural productivity, although water and sunlight are abundant.
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The countries of the humid tropical areas of the world lack the soill fertility necessary for high agricultural productivity, although water and sunlight are abundant.

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