The split-plot design arose from agricultural science with experimental units, also known as the subplots, nested within groups whole plots. It assigns different interventions at whole-plot and subplot levels, respectively, providing a convenient way to accommodate hard-to-change factors. By design, subplots same plot receive level of intervention, thereby induce group structure on final treatm...

The role of grass tussocks in supporting soil microbial biomass (SMB) in grazed ecosystems is not fully understood, nor is the spatial distribution of SMB in response to different grass species. We undertook a study in 1997 that examined ®ne-scale distributions of SMB in grazed experimental paddocks located in the eucalypt woodlands of northern Queensland, Australia. Levels of SMB were determin...

In applied entomological experiments, when the response is a count-type variable, certain transformation remedies such as the square root, logarithm (log), or rank transformation are often used to normalize data before analysis of variance. In this study, we examine the usefulness of these transformations by reanalyzing field-collected data from a split-plot experiment and by performing a more ...