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Comparing apparent electrical conductivity measurements on a paddy field under flooded and drained conditions

Mohammad Monirul Islam UGent, Eef Meerschman UGent, Timothy Saey UGent, Philippe De Smedt UGent, Ellen Van De Vijver UGent and Marc Van Meirvenne UGent (2012) PRECISION AGRICULTURE. 13(3). p.384-392
abstract
Every growing season, paddy fields are kept both flooded and drained for a significant period of time. As a consequence, these soils develop distinct physico-chemical characteristics. For practical reasons, these soils are mostly sampled under dry conditions, but the question arises how representative the results are for the wet growing conditions. Therefore, the apparent electrical conductivity (ECa) of a 1.4 ha alluvial paddy field located in the Brahmaputra floodplain of Bangladesh was measured in both dry and wet conditions by a sensing system using the electromagnetic induction sensor EM38, which does not require physical contact with the soil, and compared both surveys. Due to the smooth water surface under wet conditions which ensured increased stability of the sensing platform, the results of the survey showed considerably reduced micro-scale variability of ECa. Furthermore, the wet survey results more reliably furnished soil-related information mainly due to the absence of soil moisture dynamics. The differences between ECa under wet and dry conditions were attributed to differences in soil texture, mainly the sand content variation having considerable effect on soil moisture differences when flooded following drainage. Accordingly, the largest differences between ECa under wet and dry conditions were found in those parts of the field with a large sand content. Hence, the conclusion was that an ECa survey on flooded fields has an added value to precision soil management.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
Electromagnetic induction sensor, Paddy field, EM38, Within-field spatial variation, SOIL-WATER CONTENT
journal title
PRECISION AGRICULTURE
Precis. Agric.
volume
13
issue
3
pages
384 - 392
Web of Science type
Article
Web of Science id
000303482600007
JCR category
AGRICULTURE, MULTIDISCIPLINARY
JCR impact factor
1.728 (2012)
JCR rank
9/56 (2012)
JCR quartile
1 (2012)
ISSN
1385-2256
DOI
10.1007/s11119-011-9253-2
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
3005256
handle
http://hdl.handle.net/1854/LU-3005256
date created
2012-10-03 13:13:32
date last changed
2012-10-05 11:46:11
@article{3005256,
  abstract     = {Every growing season, paddy fields are kept both flooded and drained for a significant period of time. As a consequence, these soils develop distinct physico-chemical characteristics. For practical reasons, these soils are mostly sampled under dry conditions, but the question arises how representative the results are for the wet growing conditions. Therefore, the apparent electrical conductivity (ECa) of a 1.4 ha alluvial paddy field located in the Brahmaputra floodplain of Bangladesh was measured in both dry and wet conditions by a sensing system using the electromagnetic induction sensor EM38, which does not require physical contact with the soil, and compared both surveys. Due to the smooth water surface under wet conditions which ensured increased stability of the sensing platform, the results of the survey showed considerably reduced micro-scale variability of ECa. Furthermore, the wet survey results more reliably furnished soil-related information mainly due to the absence of soil moisture dynamics. The differences between ECa under wet and dry conditions were attributed to differences in soil texture, mainly the sand content variation having considerable effect on soil moisture differences when flooded following drainage. Accordingly, the largest differences between ECa under wet and dry conditions were found in those parts of the field with a large sand content. Hence, the conclusion was that an ECa survey on flooded fields has an added value to precision soil management.},
  author       = {Islam, Mohammad Monirul and Meerschman, Eef and Saey, Timothy and De Smedt, Philippe and Van De Vijver, Ellen and Van Meirvenne, Marc},
  issn         = {1385-2256},
  journal      = {PRECISION AGRICULTURE},
  keyword      = {Electromagnetic induction sensor,Paddy field,EM38,Within-field spatial variation,SOIL-WATER CONTENT},
  language     = {eng},
  number       = {3},
  pages        = {384--392},
  title        = {Comparing apparent electrical conductivity measurements on a paddy field under flooded and drained conditions},
  url          = {http://dx.doi.org/10.1007/s11119-011-9253-2},
  volume       = {13},
  year         = {2012},
}

Chicago
Islam, Mohammad Monirul, Eef Meerschman, Timothy Saey, Philippe De Smedt, Ellen Van De Vijver, and Marc Van Meirvenne. 2012. “Comparing Apparent Electrical Conductivity Measurements on a Paddy Field Under Flooded and Drained Conditions.” Precision Agriculture 13 (3): 384–392.
APA
Islam, M. M., Meerschman, E., Saey, T., De Smedt, P., Van De Vijver, E., & Van Meirvenne, M. (2012). Comparing apparent electrical conductivity measurements on a paddy field under flooded and drained conditions. PRECISION AGRICULTURE, 13(3), 384–392.
Vancouver
1.
Islam MM, Meerschman E, Saey T, De Smedt P, Van De Vijver E, Van Meirvenne M. Comparing apparent electrical conductivity measurements on a paddy field under flooded and drained conditions. PRECISION AGRICULTURE. 2012;13(3):384–92.
MLA
Islam, Mohammad Monirul, Eef Meerschman, Timothy Saey, et al. “Comparing Apparent Electrical Conductivity Measurements on a Paddy Field Under Flooded and Drained Conditions.” PRECISION AGRICULTURE 13.3 (2012): 384–392. Print.