Temporal Variability of Organic Carbon in Semi-Arid Soil on the Texas High Plains

The objective of this study was to determine the temporal variability of soil organic and potassium permanganate oxidizable carbon in semi-arid soil of the Texas High Plains.  The study was conducted at the Agricultural Complex for Advanced Research and Extension Systems (Ag-CARES) in Lamesa, TX.  Measurements include soil organic carbon, potassium permanganate oxidizable carbon, and biomass production.  Discussion will include the effect of roots and rhizodeposition on soil organic carbon.