Fig. 1. Boxplots of K_s values for the conventional and conservation tillage plots of the Lietzen site, determined with the hood (HIF) and the ring (RIF) infiltrometer. The numbers of measurements are given in Table 3. Boxes denote the 25th and 75th percentiles positions, the continuous bar inside the box shows the median and the dash-dotted line the mean value; the whiskers denote the 10th and 90th percentiles; outliers are indicated as triangles. This notation applies also to subsequent box plots.