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Small Scale Spatial Variability of Apparent Electrical Conductivity within a Paddy Field
Joint Authors
Aimrun, W.
Amin, M. S. M.
Ezrin, M. H.
Source
Applied and Environmental Soil Science
Issue
Vol. 2009, Issue 2009 (31 Dec. 2009), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2009-06-25
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Earth Science , Water and Environment
Abstract EN
Quick variability description is an important component for zone management practices.
Precision farming requires topping up of only the nutrients that are lacking in the soil to attain the highest yield with the least input.
The apparent soil electrical conductivity (ECa) sensor is a useful tool in mapping to identify areas of contrasting soil properties.
In nonsaline soils, ECa is a substitute measurement for soil texture.
It is directly related to both water holding capacity and Cation Exchange Capacity (CEC), which are key ingredients of productivity.
This sensor measures the ECa across a field quickly and gives detailed soil features (one-second interval) with few operators.
Hence, a dense sampling is possible and therefore a high-resolution ECa map can be produced.
This study aims to characterize the variability of soil ECa within a Malaysian paddy field with respect to the spatial and seasonal variability.
The study was conducted at Block C, Sawah Sempadan, Selangor, Malaysia, for three continuous seasons.
Soil ECa was collected after harvesting period.
The results showed that deep ECa visualized the pattern of the former river routes clearly as continuous lines (about 45 m width) at the northern and central regions of the study area.
This exploration has shown different maps with higher contrast as compared to the existing soil series map for the study area.
Seasonal variability test showed that the ECa that was acquired during rainy season (collected after harvest in December to January) has the highest value as compared to another season.
American Psychological Association (APA)
Aimrun, W.& Amin, M. S. M.& Ezrin, M. H.. 2009. Small Scale Spatial Variability of Apparent Electrical Conductivity within a Paddy Field. Applied and Environmental Soil Science،Vol. 2009, no. 2009, pp.1-7.
https://search.emarefa.net/detail/BIM-458825
Modern Language Association (MLA)
Aimrun, W.…[et al.]. Small Scale Spatial Variability of Apparent Electrical Conductivity within a Paddy Field. Applied and Environmental Soil Science No. 2009 (2009), pp.1-7.
https://search.emarefa.net/detail/BIM-458825
American Medical Association (AMA)
Aimrun, W.& Amin, M. S. M.& Ezrin, M. H.. Small Scale Spatial Variability of Apparent Electrical Conductivity within a Paddy Field. Applied and Environmental Soil Science. 2009. Vol. 2009, no. 2009, pp.1-7.
https://search.emarefa.net/detail/BIM-458825
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-458825