2008
DOI: 10.3997/1873-0604.2008031
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Electrical conductivity mapping for precision farming

Abstract: Precision farming overcomes the paradigm of uniform field treatment by site‐specific data acquisition and treatment to cope with within‐field variability. Precision farming heavily relies on spatially dense information about soil and crop status. While it is often difficult and expensive to obtain precise soil information by traditional soil sampling and laboratory analysis some geophysical methods offer means to obtain subsidiary data in an efficient way. In particular, geoelectrical soil mapping has become w… Show more

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Cited by 58 publications
(48 citation statements)
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References 15 publications
(15 reference statements)
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“…ECa was significantly correlated with the soil electrical conductivity of saturation extract and the total cation exchange capacity only on November 23 rd , 2010, which is in agreement with the results presented by Rhoades et al (1989). The results of this research reinforce the need to measure the soil moisture content when measuring ECa because discriminating the effects of variation in soil moisture content measurements on ECa is not possible with current technologies (LÜCK et al, 2009). Under conditions of higher soil moisture content, a lower correlation coefficient was observed between the soil moisture content and ECa, which indicates that under these conditions, the variability of the ECa is less influenced by the soil moisture content.…”
Section: Resultssupporting
confidence: 81%
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“…ECa was significantly correlated with the soil electrical conductivity of saturation extract and the total cation exchange capacity only on November 23 rd , 2010, which is in agreement with the results presented by Rhoades et al (1989). The results of this research reinforce the need to measure the soil moisture content when measuring ECa because discriminating the effects of variation in soil moisture content measurements on ECa is not possible with current technologies (LÜCK et al, 2009). Under conditions of higher soil moisture content, a lower correlation coefficient was observed between the soil moisture content and ECa, which indicates that under these conditions, the variability of the ECa is less influenced by the soil moisture content.…”
Section: Resultssupporting
confidence: 81%
“…Thus, soil ECa represents a tool with great potential for precision agriculture (CORWIN et al, 2006, SHANE et al, 2008. However, according to LÜCK et al (2009), the spatial variability of the soil moisture content makes the measurement of ECa unreliable for predicting the variability of soil physical and chemical attributes. Ekwue and Bartholomew (2010) observed in their experiments a strong positive correlation between the ECa and the soil moisture content for three soil types evaluated in laboratory and field conditions.…”
Section: Introductionmentioning
confidence: 99%
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“…For generating management zones, it is first necessary to collect information closely related to crop yield, and the variables chosen to define these management zones should be quick and inexpensive to measure. For these reasons, apparent soil electrical conductivity (ECa) is an excellent potential variable for the delineation of management zones (Lück et al, 2009).…”
Section: Introductionmentioning
confidence: 99%