SciELO - Scientific Electronic Library Online

vol.43 issue4Dry matter loss in corn grains stored in airtight bagsPhenotypic variability and genetic diversity in sweet potato clones in the state of Tocantins author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links


Revista Ciência Agronômica

On-line version ISSN 1806-6690


VALENTE, Domingos Sárvio Magalhães et al. The relationship between apparent soil electrical conductivity and soil properties. Rev. Ciênc. Agron. [online]. 2012, vol.43, n.4, pp.683-690. ISSN 1806-6690.

Precision agriculture that is based on the physical and chemical properties of soil requires a dense sampling to evaluate spatial variability in the field. This dense sampling is often expensive and time consuming. One technique to reduce the number of samples is to define management zones based on information that is collected in the field. Some researchers have demonstrated the importance of the electrical properties of soil in defining management zones. Thus, the objective of this study was to evaluate the relationship between the apparent soil electrical conductivity and soil properties in mountainous areas of coffee production. The electrical conductivity of soil was evaluated at soil depths ranging from 0.00-0.20 m (EC20) and 0.00-0.40 m (EC40) using a portable meter. The mean values of EC20 and EC40 were 1.80 mS m-1 and 1.22 mS m-1, respectively. Both EC20 and EC40 exhibited comparatively low correlations with the soil properties, whereas higher correlations were obtained for measurements of remaining phosphorus, wherein values of 0.427 and 0.465, respectively, were obtained.

Keywords : precision agriculture; management zone; sensors.

        · abstract in Portuguese     · text in English     · English ( pdf epdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License