Field EC Mapping: A New Tool to Make Better Decisions

Abstract

• Mapping soil composition across the field is easily done using measurements of soil electrical conductivity (ECa). 

• A soil ECa map is important because it identifies areas in a field that have different soil compositions which may benefit from different management strategies. 

• The soil EC is a measure of how easily current flows through the soil. 

• Because soil properties are relatively constant, a single soil ECa map of a field is sufficient for many years.