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Most field experiments are conducted over two or more locations or years, yet statistical references do not contain sufficient detail for complete analysis. The purpose of this paper is to provide a reference for analysis of combined experiments. Tables include sources of variation, degrees of freedom, and F-ratios for one factor and split-plot experiments combined over locations and/or years. The F-ratios are given for fixed, mixed, and random models.
Key Words: Experimental design • Series of experiments • Statistics
2 Assistant professor, Dep. of Agronomy, Univ. of Maryland, College Park, MD 20742.
Received for publication May 17, 1982.
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