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Soils Do Not Wear Out Says U S Expert
The United States soil fertility is rising not falling says Professor Milton Whitney chief of the bureau of soils. He notes overall U S and European soils show no decline in potash phosphoric acid lime or magnesia and credits better cultivation crop rotations and smarter use of fertilizers for continued high productivity.
MENTIONED IN THIS ARTICLE
United States
Milton Whitney
Bureau of Soils of the
Europe
Whitney
Columbella
Cicero
Italy
England