Corn root system may be restricted due to soil compaction and therefore reduce corn growth and yields. More in depth evaluation of these restrictive soil levels to corn root growth, in relation to soil zones, may help with the improvement of tillage system. Moreover, soil compaction may reduce nitrogen utilization in corn and increase soil nitrate pollution. Soil compaction is an important aspect in crop production and finding solutions to decrease it with available tools will help to increase yields. A commercially available soil electrical conductivity (EC) measurement system (Veris Technologies 3100) will be used to identify variations in soil texture across the field and create soil zone maps using GPS and geographic information systems. Soil compaction will be monitored during corn vegetation to compare three tillage systems (conventional, strip-till, and not-till) at different soil depths using a soil cone penetrometer. These measurements will help to determine soil levels with restrictive corn root growth under different soil zones and tillage system in order to improve soil management practices.