Field and chemical Evaluation of volcanic ash deposition in some soils of Malaysia

Reference

• Blakemore , L. C. , Searte , P. L. and Daly , B. K. 1987 . Methodfor chemical analysis of soil . Bur. Sci. Rep. , 80
   Google Scholar
• Bremner , J. M. and Mullraney , C. S. 1982 . “ Nitrogen total ” . In Method of Soil Analysis , 2nd edn. , Agronomy No. 9. Edited by: Page , A. C. Madison, WI : American Society of Agronomy . Part 2
   Google Scholar
• Childs , C. W. 1985 . “ Towards understanding soil mineralogy ” . In Notes on Ferrihydrite , Laboratory Report CM7 Vol. II , Lower Hutt, , New Zealand : Soil Bureau .
   Google Scholar
• Debavey , J. , De Dapper , De Paepe , K. and Gijbels , R. 1986 . “ Geosea V Proceeding ” . In Geot. Soc , Vol. 1. , 533 – 549 . Malaysia : Bulletin . 19
   Google Scholar
• Holmgren , G. G. S. 1967 . A rapid citrate‐dithionite extractable iron procedure . Soil Sci. Soc. Amer. Proc , 31 : 210 – 211 .
   Web of Science ®Google Scholar
• Hsu , P. F. 1963 . Effect of initial pH, phosphate, and silicate on the determination of aluminium with aluminon . Soil Sci. , 96 : 230 – 238 .
   Google Scholar
• Mizota , C. and van Reeuwijk , L. P. 1989 . “ Claymineralogy and chemistry of soils formed in volcanic material in diverse climatic regions ” . In Soil Monograph 2 , 185 wageningen : ISRIC .
   Google Scholar
• Mehra , O. P. and Jackson , M. L. 1961 . Iron oxide removal from soils and clays by a dithionite‐citrate system buffered with sodium bicarbonate . Clays and Clay Minerals 7th Conference . 1961 . pp. 317 – 327 .
   Google Scholar
• Nanzyo , M. , Shoji , S. and Dehlgren , R. 1993 . “ Physical characteristics of volcanic ash soils ” . In Volcanic Ash Soils: Genesis, Properties and Utilization , Edited by: Shoji . Vol. 21 , 189 – 207 . Amsterdam : Elsevier . Development in Soil Sci.
   Google Scholar
• Olsen , S. R. , Cole , C. V. , Watanabe , F. S. and Dean , L. A. 1954 . Estimationofavailable phosphorus in soils by extraction with sodium bicarbonate , USDA Circ. No. 939 Washington, DC
   Google Scholar
• Otsuka , H. , Briones , A. A. , Daquiado , N. P. and Evangelio , F. A. 1988 . Characteristicsand genesis of volcanic ash soils in the Philippines , TARC Tech. Bull. No. 24 122
   Google Scholar
• Paramananthan , S. 1978 . Soil genesis on igneous and metamorphic rocks in Malaysia , Belgium : University Ghent . Ph.D. Thesis
   Google Scholar
• Parfitt , R. L. and Wilson , A. D. 1985 . “ Estimationof allophane and halloysite in three sequences of volcanic soils, New Zealand ” . In Volcanic soils. Catena Suppl Edited by: Fernandez Caldas , E. and Yaalon , D. H. Vol. 7 , 1 – 8 .
   Google Scholar
• Samid , S. 1990 . Somecharacteristics of Andosols from Western Indonesia , 246 University of Western Australia . Ph.D. Thesis
   Google Scholar
• Shoji , S. , Nanzyo , M. and Dahlgren , R. 1993 . “ VolcanicAsh Soils: Genesis, Properties and utilization ” . In Development in Soil Sci , Vol. 21 , 288 Amsterdam : Elsevier .
   Google Scholar
• Stauffer , P. H. 1973 . Geological Society of Malaysia Newsletters ,
   Google Scholar
• USDA Soil Survey Staff . 1981 . Examination and Description of Soils in the Field , Vol. 430‐V‐SSM , Washington, DC : USDA Soil Conservation Service . 1980.
   Google Scholar
• USDA Soil Taxonomy . 1994 . Keys to Soil Taxonomy , 6th edn. , 306 U.S.A. : USDA, Soil Conservation Service .
   Google Scholar
• Wada , K. 1980 . “ Mineralogicalcharacteristics of Andisols ” . In Soils with Variable Charge , Edited by: Theng , B. K. G. 87 – 109 . Lower Hutt, , New Zealand : Soil Bureau .
   Google Scholar
• Walkley , A. and Black , I. A. 1934 . Anexamination of the Degtjareff method for determining soil organic matter and a proposed modification of the chromic acid titration method . Soil Sci. , 37 : 29 – 38 .
   Web of Science ®Google Scholar
• Zauyah , S. , Anizan , I. and Zuraina , M. 1997 . Micromorphological of volcanic ash deposit in a paleo‐lake at Bukit Jawa, Lenggong, Perak. . Proc. First Asean Microscopy Conf. . 1997 , Johore, Malaysia. pp. 341 – 343 .
   Google Scholar
• Address for correspondence: Department of Land Management, Faculty of Agriculture, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia.
   Google Scholar