SPATIAL AND TEMPORAL VARIATION OF PONDED INFILTRATION

This study was conducted to assess the spatial and temporal variation of ponded infiltration as affected by plow- and conservation-tillage corn (Zea mays L.) systems under different plant and row location conditions. Saturated hydraulic conductivity and sorptivity were estimated by fitting a mechanistic infiltration model to the data. Subsequently, a third parameter, for cumulative 1-h infiltration was calculated from the model. All three infiltration parameters were used to assess treatment and sampling-position effects on infiltration. -from Author