Application of Geostatistical Tools to Quantify Spatial Variability of Selected Soil Chemical Properties From a Cultivated Tropical Peat
Abstract : Quantification of spatial variability is a vital prerequisite agriculture.This study was aimed at quantifying the spatial variability of selected chemical properties in a tropical peat cultivated with pineapple. A 1 –ha study plot was established in a commercial pineapple plantation in Si...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English English |
| Published: |
2008
|
| Online Access: | http://psasir.upm.edu.my/id/eprint/835/ http://psasir.upm.edu.my/id/eprint/835/1/PFP20.PDF |
| _version_ | 1848838865307041792 |
|---|---|
| author | Balasundram, Siva Kumar Mohd Hanif, Ahmad Husni Ahmed, Osumanu Haruna |
| author_facet | Balasundram, Siva Kumar Mohd Hanif, Ahmad Husni Ahmed, Osumanu Haruna |
| author_sort | Balasundram, Siva Kumar |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Abstract : Quantification of spatial variability is a vital prerequisite agriculture.This study was aimed at quantifying the spatial variability of selected chemical properties in a tropical peat cultivated with pineapple. A 1 –ha study plot was established in a commercial pineapple plantation in Simpang Rengam , Johor. Georeferenced topsoil samples ( n = 60 ) were obtained systematically from 8 x 18 m spacings in the x and y direction, respectively.These samples were tested for total C , extractable P , K , Cu , Zn and B.Soil data were first explored using univariate statistics , including normality check , non – spatial outlier detection and data transformation.This was followed by variography and kriging analyses to quantify the spatial variability of chemical properties.Results revealed a high degree of spatial variability in the majority of chemical properties , which exhibited non- normal distributions with CVs ranging from 12 to 54 %.All properties exhibited a definable spatial structure , which were described by either spherical or exponential models.Carbon , P and B showed strong spatial dependence. The majority of properties had a short effective range.Surface maps of chemical properties clearly showed spatial clustering of test values.Expecting K , all other properties showed acceptable accuracy of interpolated values. These combined data suggest the need for a site – specific approach in managing tropical peat cultivated with pineapple , particulary with regard to nutrient management. |
| first_indexed | 2025-11-15T07:02:20Z |
| format | Article |
| id | upm-835 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T07:02:20Z |
| publishDate | 2008 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-8352010-07-26T10:30:29Z http://psasir.upm.edu.my/id/eprint/835/ Application of Geostatistical Tools to Quantify Spatial Variability of Selected Soil Chemical Properties From a Cultivated Tropical Peat Balasundram, Siva Kumar Mohd Hanif, Ahmad Husni Ahmed, Osumanu Haruna Abstract : Quantification of spatial variability is a vital prerequisite agriculture.This study was aimed at quantifying the spatial variability of selected chemical properties in a tropical peat cultivated with pineapple. A 1 –ha study plot was established in a commercial pineapple plantation in Simpang Rengam , Johor. Georeferenced topsoil samples ( n = 60 ) were obtained systematically from 8 x 18 m spacings in the x and y direction, respectively.These samples were tested for total C , extractable P , K , Cu , Zn and B.Soil data were first explored using univariate statistics , including normality check , non – spatial outlier detection and data transformation.This was followed by variography and kriging analyses to quantify the spatial variability of chemical properties.Results revealed a high degree of spatial variability in the majority of chemical properties , which exhibited non- normal distributions with CVs ranging from 12 to 54 %.All properties exhibited a definable spatial structure , which were described by either spherical or exponential models.Carbon , P and B showed strong spatial dependence. The majority of properties had a short effective range.Surface maps of chemical properties clearly showed spatial clustering of test values.Expecting K , all other properties showed acceptable accuracy of interpolated values. These combined data suggest the need for a site – specific approach in managing tropical peat cultivated with pineapple , particulary with regard to nutrient management. 2008 Article NonPeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/835/1/PFP20.PDF Balasundram, Siva Kumar and Mohd Hanif, Ahmad Husni and Ahmed, Osumanu Haruna (2008) Application of Geostatistical Tools to Quantify Spatial Variability of Selected Soil Chemical Properties From a Cultivated Tropical Peat. Journal of Agronomy, 7 (1). pp. 82-87. ISSN 1812-5379 English |
| spellingShingle | Balasundram, Siva Kumar Mohd Hanif, Ahmad Husni Ahmed, Osumanu Haruna Application of Geostatistical Tools to Quantify Spatial Variability of Selected Soil Chemical Properties From a Cultivated Tropical Peat |
| title | Application of Geostatistical Tools to Quantify Spatial Variability of Selected Soil Chemical Properties From a Cultivated Tropical Peat |
| title_full | Application of Geostatistical Tools to Quantify Spatial Variability of Selected Soil Chemical Properties From a Cultivated Tropical Peat |
| title_fullStr | Application of Geostatistical Tools to Quantify Spatial Variability of Selected Soil Chemical Properties From a Cultivated Tropical Peat |
| title_full_unstemmed | Application of Geostatistical Tools to Quantify Spatial Variability of Selected Soil Chemical Properties From a Cultivated Tropical Peat |
| title_short | Application of Geostatistical Tools to Quantify Spatial Variability of Selected Soil Chemical Properties From a Cultivated Tropical Peat |
| title_sort | application of geostatistical tools to quantify spatial variability of selected soil chemical properties from a cultivated tropical peat |
| url | http://psasir.upm.edu.my/id/eprint/835/ http://psasir.upm.edu.my/id/eprint/835/1/PFP20.PDF |