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Pot Experiments to Determine Primarily the Availability of Phosphoric Acid in Thomas Slag Phosphates in Comparison with Other Phosphates

Walter Beal EllettAlan Armistead Ingham

出版	Virginia Agricultural Experiment Station, 1917
URL	http://books.google.com.hk/books?id=WSsrAQAAMAAJ&hl=&source=gbs_api