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In modern agriculture, the knowledge of the soil properties is a key factor for profitability in the production. However, data acquisition and processing are limiting factors for its use, since they require specialized labor. The automatic instrument that provides information about soil penetration resistance, which is described here replaces the traditional system and automatically obtain reliable...
This paper presents the study of the relationship between soil apparent electrical resistivity ρa and i) the moisture content, ii) clay content and iii) soil compaction, for use of the ρa as a mapping tool of spatial soil variability. It was held measures of ρa in different soil types, varying moisture content gradually while maintaining a constant compaction, and then varying the compaction and relating...
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