Using Soil Apparent Electrical Conductivity to Optimize Sampling of Soil Penetration Resistance and to Improve the Estimations of Spatial Patterns of Soil Compaction
Joint Authors
Siqueira, Glécio Machado
Dafonte, Jorge Dafonte
Bueno Lema, Javier
Valcárcel Armesto, Montserrat
Silva, Ênio Farias França e
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-12-31
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Medicine
Information Technology and Computer Science
Abstract EN
This study presents a combined application of an EM38DD for assessing soil apparent electrical conductivity (ECa) and a dual-sensor vertical penetrometer Veris-3000 for measuring soil electrical conductivity (ECveris) and soil resistance to penetration (PR).
The measurements were made at a 6 ha field cropped with forage maize under no-tillage after sowing and located in Northwestern Spain.
The objective was to use data from ECa for improving the estimation of soil PR.
First, data of ECa were used to determine the optimized sampling scheme of the soil PR in 40 points.
Then, correlation analysis showed a significant negative relationship between soil PR and ECa, ranging from −0.36 to −0.70 for the studied soil layers.
The spatial dependence of soil PR was best described by spherical models in most soil layers.
However, below 0.50 m the spatial pattern of soil PR showed pure nugget effect, which could be due to the limited number of PR data used in these layers as the values of this parameter often were above the range measured by our equipment (5.5 MPa).
The use of ECa as secondary variable slightly improved the estimation of PR by universal cokriging, when compared with kriging.
American Psychological Association (APA)
Siqueira, Glécio Machado& Dafonte, Jorge Dafonte& Bueno Lema, Javier& Valcárcel Armesto, Montserrat& Silva, Ênio Farias França e. 2014. Using Soil Apparent Electrical Conductivity to Optimize Sampling of Soil Penetration Resistance and to Improve the Estimations of Spatial Patterns of Soil Compaction. The Scientific World Journal،Vol. 2014, no. 2014, pp.1-12.
https://search.emarefa.net/detail/BIM-1048985
Modern Language Association (MLA)
Siqueira, Glécio Machado…[et al.]. Using Soil Apparent Electrical Conductivity to Optimize Sampling of Soil Penetration Resistance and to Improve the Estimations of Spatial Patterns of Soil Compaction. The Scientific World Journal No. 2014 (2014), pp.1-12.
https://search.emarefa.net/detail/BIM-1048985
American Medical Association (AMA)
Siqueira, Glécio Machado& Dafonte, Jorge Dafonte& Bueno Lema, Javier& Valcárcel Armesto, Montserrat& Silva, Ênio Farias França e. Using Soil Apparent Electrical Conductivity to Optimize Sampling of Soil Penetration Resistance and to Improve the Estimations of Spatial Patterns of Soil Compaction. The Scientific World Journal. 2014. Vol. 2014, no. 2014, pp.1-12.
https://search.emarefa.net/detail/BIM-1048985
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1048985