Potassium Variability in Some Alluvial Soils

The alluvial soils in the Mississippi Delta vary from clay to fine sand deposits found in ancient or contemporary flood plains of river systems. These soils are some of the most productive agricultural soils in the state. However, their alluvial nature can result in significant textural variability in relatively small areas. The objective of this presentation is to share our experiences while trying to characterize the spatial and temporal variability in potassium concentration in several fields in Arkansas.