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This article in SSSAJ

  1. Vol. 39 No. 3, p. 391-393
     
    Received: July 29, 1974
    Published: May, 1975


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doi:10.2136/sssaj1975.03615995003900030014x

Soil Water Measurement with an Inexpensive Spectrophotometer1

  1. S. A. Bowers,
  2. S. J. Smith,
  3. H. D. Fisher and
  4. G. E. Miller2

Abstract

Abstract

A small, portable, battery-powered, spectrophotometer was developed to measure soil water content rapidly. Soil water contents of 16 soils were related to the absorbance at 1.94 µm by a soil-methanol extract by the curvilinear equation

With the exception of Houston Black Clay, one equation could be used for all soils. Determination time for individual samples was approximately 15 min.

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