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- research-articleFebruary 2020
Estimation of water table depth using DUALEM-2 system
Computers and Electronics in Agriculture (COEA), Volume 169, Issue Chttps://doi.org/10.1016/j.compag.2020.105227Highlights- DUALEM-2 system was calibrated to predict WTD.
- Software was developed to process the EMI survey data to estimate WTD rapidly and reliably.
- The mapped WTD information can be used to implement site-specific irrigation and drainage ...
Most of the agricultural fields are generally irrigated or drained uniformly without considering the spatial and temporal variation in water table depth (WTD). Investigating WTD is important for scheduling irrigation, drainage system designs and ...
- articleSeptember 2013
Subfield management class delineation using cluster analysis from spatial principal components of soil variables
Computers and Electronics in Agriculture (COEA), Volume 97Pages 6–14https://doi.org/10.1016/j.compag.2013.05.009Understanding spatial variation within a field is essential for site-specific crop management, which requires the delineation of management areas. Several soil and terrain variables are used to classify the field points into classes. Fuzzy k-means ...
- articleJune 2012
Kinematic correction for a spatial offset between sensor and position data in on-the-go sensor applications
Computers and Electronics in Agriculture (COEA), Volume 84Pages 76–84https://doi.org/10.1016/j.compag.2012.02.021On-the-go data collection is the basis for many applications that require spatially referenced information at a sub-field scale. A spatial or temporal offset can occur between sensor and position measurements (mostly obtained with global navigation ...
- articleApril 2008
Field comparison of two prototype soil strength profile sensors
Computers and Electronics in Agriculture (COEA), Volume 61, Issue 1Pages 20–31https://doi.org/10.1016/j.compag.2006.11.006Soil compaction that is induced by tillage and traction is an ongoing concern in crop production, and also has environmental consequences. Although cone penetrometers provide standardized compaction measurements, the pointwise data collected makes it ...
- articleMarch 2005
Site-specific management in salt-affected sugar beet fields using electromagnetic induction
Computers and Electronics in Agriculture (COEA), Volume 46, Issue 1-3Pages 329–350https://doi.org/10.1016/j.compag.2004.11.013An assessment of field-scale variation and the characterization of correlated crop response are the first steps in evaluating the potential for variable-rate technologies and other techniques used in site-specific management (SSM). The responses of ...
- articleMarch 2005
Delineating productivity zones on claypan soil fields using apparent soil electrical conductivity
Computers and Electronics in Agriculture (COEA), Volume 46, Issue 1-3Pages 285–308https://doi.org/10.1016/j.compag.2004.11.012Efficient and cost-effective methods are needed for delineating sub-field productivity zones to improve soil and crop site-specific management. This investigation was conducted to answer the question of whether apparent soil electrical conductivity (EC"...
- articleMarch 2005
Relating apparent electrical conductivity to soil properties across the north-central USA
- K. A. Sudduth,
- N. R. Kitchen,
- W. J. Wiebold,
- W. D. Batchelor,
- G. A. Bollero,
- D. G. Bullock,
- D. E. Clay,
- H. L. Palm,
- F. J. Pierce,
- R. T. Schuler,
- K. D. Thelen
Computers and Electronics in Agriculture (COEA), Volume 46, Issue 1-3Pages 263–283https://doi.org/10.1016/j.compag.2004.11.010Apparent electrical conductivity (EC"a) of the soil profile can be used as an indirect indicator of a number of soil physical and chemical properties. Commercially available EC"a sensors can efficiently and inexpensively develop the spatially dense ...
- articleMarch 2005
Development of practical site-specific management methods for reclaiming salt-affected soil
Computers and Electronics in Agriculture (COEA), Volume 46, Issue 1-3Pages 379–397https://doi.org/10.1016/j.compag.2004.11.008Sustaining irrigated agricultural production systems in semi-arid and arid regions requires consideration of with saline and sodic soil conditions. The spatial variability of these conditions makes soil reclamation an ideal practice in which to apply ...
- articleMarch 2005
Apparent soil electrical conductivity mapping as an agricultural management tool in arid zone soils
Computers and Electronics in Agriculture (COEA), Volume 46, Issue 1-3Pages 351–378https://doi.org/10.1016/j.compag.2004.11.007Electromagnetic induction (EM) is a commonly used tool for non-invasive mapping of apparent soil electrical conductivity (EC"a). In this paper, we examine three applications of EM surveying used in arid southwestern US agriculture: repetitive salinity ...
- articleMarch 2005
Characterizing soil spatial variability with apparent soil electrical conductivity
Computers and Electronics in Agriculture (COEA), Volume 46, Issue 1-3Pages 135–152https://doi.org/10.1016/j.compag.2004.11.003Geospatial measurements of apparent soil electrical conductivity (EC"a) are recognized as a means of characterizing soil spatial variability at field and landscape scales. However, inconsistencies in the measurement and interpretation of field- and ...
- articleMarch 2005
Characterizing soil spatial variability with apparent soil electrical conductivity
Computers and Electronics in Agriculture (COEA), Volume 46, Issue 1-3Pages 103–133https://doi.org/10.1016/j.compag.2004.11.002Spatial characterization of the variability of soil physico-chemical properties is a fundamental element of (i) soil quality assessment, (ii) modeling non-point source pollutants in soil, and (iii) site-specific crop management. Apparent soil electrical ...
- articleMarch 2005
Apparent soil electrical conductivity measurements in agriculture
Computers and Electronics in Agriculture (COEA), Volume 46, Issue 1-3Pages 11–43https://doi.org/10.1016/j.compag.2004.10.005The field-scale application of apparent soil electrical conductivity (EC"a) to agriculture has its origin in the measurement of soil salinity, which is an arid-zone problem associated with irrigated agricultural land and with areas having shallow water ...
- articleMarch 2005
Editorial: Applications of apparent soil electrical conductivity in precision agriculture
Computers and Electronics in Agriculture (COEA), Volume 46, Issue 1-3Pages 1–10https://doi.org/10.1016/j.compag.2004.10.004Sustainable agriculture is considered the most viable means of meeting future food needs for the world's increasing population through its goal of delicately balancing crop productivity, profitability, natural resource utilization, sustainability of the ...