How Many Replications Are Needed for Comparing Whole Profile Soil C Stocks?.
(2009 Annual Meeting (November 1-5, 2009)) Start | View At a Glance | Author Index /AnMtgsAbsts2009.52248 How Many Replications Are Needed for Comparing Whole Profile Soil C Stocks?. Tuesday, November 3, 2009 Convention Center, Exhibit Hall BC, Second Floor Alexandra N. Kravchenko, Michigan State Univ., East Lansing, MI and G. Philip Robertson, Michigan State Univ., Hickory Corners, MI Soil carbon (C) stock assessments for the whole soil profile are of great importance however their measurements are highly variable. The outcome of the high variability is that often no statistically significant difference between the studied treatments can be detected in a course of statistical analyses. A common mistake is to interpret this lack of statistical significance as a reason to accept the hypothesis of no difference between the treatments. Our objective is to remind the researchers that inadequate replication is one of the major reasons for the lack of statistical significance; and that a com
