SSMG-18 (T. A. Wittig and Z. W. Wicks III)

Simple On-Farm Comparisons

Summary:

Many farmers continuously experiment with new farming approaches to optimize profitability. To determine if management changes make a difference, it is necessary to compare one treatment versus another. The selection of a method for conducting the experiment and making comparisons is critical to minimize incorrect interpretation of experimental results. It is not necessary to implement complicated experimental or statistical methods to determine if a change in management will improve production. However, if proper techniques are not used, results can be misleading, and a change in management might not lead to an increase in productivity. The purpose of this guideline is to provide a framework for conducting simple on-farm experiments. These techniques can be used for any comparisons where two factors need to be compared with statistical precision.

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