What is Electrical Conductivity (EC)?

What is Electrical Conductivity (EC)?

EC is a measure of soil electrical conductivity, which is largely determined by salinity (soluble salts) and soil texture (clay content). When combined with topography and site-specific soil tests, it is a proven way of delineating management zones within fields for the purpose of varying seed and fertilizer rates, as well as soil landscape reclamation and drainage potential.
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    • Does very dry soil affect mapping?

      In our earliest days we used a Veris machine to collect EC data. Veris EC data is definitely affected by dry conditions. Electrical conductivity can’t flow from one disk to the other without soil moisture. We have since mapped many, many acres of ...
    • What is the SWAT BOX?

      SWAT BOX is a developed autonomous mapping system. The system logs soil electrical conductivity (EC) and elevation data if an RTK GPS system is made available. It can be mounted to trucks, all terrain vehicles, and a variety of Ag equipment and only ...
    • Can I use the SWAT BOX on my own equipment to collect EC data?

      Yes, if you have access to very accurate elevation data such as LIDAR or RTK using a mobile base station. In some cases, elevation data from your own equipment can be used but the quality of data would first need to be assessed by our map developers.
    • Do you use yield maps?

      Yield maps, if accurate, can serve as a good report card of what has occurred in your field that year. However, yield maps are different every year and even when using a 10-year average, they don't tell you why the yield was at a certain level in one ...
    • Does snow affect mapping?

      Snow actually causes more challenge for the mapping trucks than for the SWAT BOX. The EC readings are still reliable through snow, and as long as we can drive through the drifts (rather than over them) the elevation data will still be accurate. We ...