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Soil Science and Plant Nutrition Volume 35, 1989 - Issue 4
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Original Articles

Multivariate approach to grouping soils in small fields. II. soil grouping technique by cluster analysis

Takashi Kosaki Department of Agro-Environmental Science, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Japan
&
Anthony S.R. Juo International Institute of Tropical Agriculture, PMB, Nigeria; Department of Soil and Crop Sciences, Texas A & M University, College Station, Texas, U.S.A.
Pages 517-525 | Received 17 Oct 1988, Published online: 14 May 2012

References

  • Areola , O. 1979 . Multivariate statistical analysis of soil laboratory data from Montgomeryshire, Wales . GeoJournal , 3 : 371 – 378 .
  • De Gruijter , J.J. 1977 . Numerical Classification of Soils and Its Application in Survey , 117 – 117 . Wageningen : PUDOC .
  • Everitt , B.S. 1980 . Cluster Analysis , 136 – 136 . London : Heineman Education Books Ltd. .
  • Kosaki , T. and Juo , A.S.R. 1989 . Multivariate approach to grouping soils in small fields. I. Extraction of factors causing soil variation by principal component analysis . Soil Sci Plant Nutr. , 35 : 469 – 477 .
  • Kyuma , K. and Kawaguchi , K. 1976 . Soil material classification for paddy soils in Japan . Soil Sci. Plant. Nutr. , 22 : 111 – 124 .
  • Okuno , T. , Kume , H. , Haga , T. and Yoshinaga , T. 1981 . Multivariate Statistical Analysis , 391 – 411 . Tokyo : Nikkagiren-Shuppan Co. Ltd. . (in Japanese)
  • SAS Institute . 1982 . SAS User's Guide—Statistics , 1982 , 417 – 473 . NC : SAS Institute Inc. Cary .
  • Schreier , H. and Zulkifli , M.A. 1983 . A numerical assessment of soil survey data for agricultural management and planning . Soil Surv. Land Eval. , 3 ( 2 ) : 41 – 53 .
  • Ward , J.H. 1963 . Hierarchical grouping to optimize an objective function . J. Am. Stat. Assoc. , 58 : 236 – 244 .

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