Sample size calculations for a continuous outcome require specification of the anticipated variance; inaccurate specification can result in an underpowered or overpowered study. For this reason, ...
This article discusses reduced sampling and testing of starting materials or components. Different strategies are presented to reduce the workload at the steps from sampling to release. Viewpoints ...
With winter spreading restrictions ending, experts urge Pennsylvania farmers to properly sample and test manure for accurate, efficient nutrient management.
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