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Short Communication

Evaluation of extraction methods of sulfate in Mt. Pinatubo volcanic ashes

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Pages 357-360 | Received 13 May 1992, Published online: 04 Jan 2012

References

  • Bernard , A. , Demaiffe , D. , Mattielle , N. and Punongbayan , R.S. 1991 . Anhydrite-bearing pumice from Mount Pinatubo: Further evidence for the existence of sulphur-rich silicic magmas . Nature , 354 : 139 – 140 .
  • Fox , R.L. , Olsen , R.A. and Rhodes , H.F. 1964 . Evaluating the sulfur status of soils by plant and soil tests . Soil Sci. Soc. Am. Proc. , 28 : 243 – 246 .
  • Imai , H. 1989 . Studies on the determining factors of the elements concentrations in soil solution 139 – 139 . (in Japanese with English summary)
  • Newhall , C. 1991 . “ Geologic history of Mount Pinatubo ” . In Abstr. GEOCON '91 , 8 – 8 . Manila : Geological Society of the Philippines . In
  • Reyes , R.Y. and Neue , H.U. Characteristics of the volcanic ejecta from Mount Pinatubo and its impact on rice production . Abstr. of the 7th Annual Conf. of Crop Sci. Soc. of Philippines . In

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