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Comparison of four measurement schedules for determination of soil particle-size distribution by the hydrometer method
Authors: P.G. Karkanis, K. Au and G.B Schaalje
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Download file: https://library.csbe-scgab.ca/docs/journal/33/33_2_211_ocr.pdf
Published in: CBE Journal » CBE Journal Volume 33 (1991)
Download RAW file: https://library.csbe-scgab.ca/docs/journal/33/33_2_211_raw.pdf
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Description: Four schedules of measurement by the hydrometer method were ex amined for determining the particle-size distribution of soils in southern Alberta. All methods utilized the same sample pretreatment proceduresand differed only in the time at which hydrometer readings were taken. Linear and quadratic regression analyses were used to describe the relationship between estimates for sand and clay content determined by the different methods. Comparisons among die meth ods were made by testing the hypothesis that the relationship between any two methods was linear and had a slope of one. Clay content was significantly overestimated with the Bouyoucos (1962) method when compared with the other three methods. Regression equations were developed for conversion of sand and clay content, as determined by theBouyoucos (1962)method, to the more theoretically soundmeth odsof Day (1965),USDI(1982), and Gee and Bauder (1986).
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Citation: P.G. Karkanis, K. Au and G.B Schaalje 1991. Comparison of four measurement schedules for determination of soil particle-size distribution by the hydrometer method. Canadian Agricultural Engineering 33(2):211-215.
Volume: 33
Issue: 2
Pages -
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Date: 1991
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Type: Text.Article
Format: PDF
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Coverage: Canada
Language 1: en
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Rights: Canadian Society for Bioengineering
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DOI:
Description: Four schedules of measurement by the hydrometer method were ex amined for determining the particle-size distribution of soils in southern Alberta. All methods utilized the same sample pretreatment proceduresand differed only in the time at which hydrometer readings were taken. Linear and quadratic regression analyses were used to describe the relationship between estimates for sand and clay content determined by the different methods. Comparisons among die meth ods were made by testing the hypothesis that the relationship between any two methods was linear and had a slope of one. Clay content was significantly overestimated with the Bouyoucos (1962) method when compared with the other three methods. Regression equations were developed for conversion of sand and clay content, as determined by theBouyoucos (1962)method, to the more theoretically soundmeth odsof Day (1965),USDI(1982), and Gee and Bauder (1986).
Keywords:
Résumé:
Mots-clés:
Citation: P.G. Karkanis, K. Au and G.B Schaalje 1991. Comparison of four measurement schedules for determination of soil particle-size distribution by the hydrometer method. Canadian Agricultural Engineering 33(2):211-215.
Volume: 33
Issue: 2
Pages -
Contributor:
Date: 1991
Technical field:
Conference name:
Session name:
Other information:
Type: Text.Article
Format: PDF
Publication type:
Source:
Relation:
Coverage: Canada
Language 1: en
Language 2:
Rights: Canadian Society for Bioengineering
Notes:
Other files:
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