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For this study, samples of wheat, corn, timothy, orchardgrass, alfalfa, Bermuda grass, and tomato were analyzed for eleven elements. A statistical study of these data was undertaken to determine the precision of the spectrographic analyses and to determine the precision that could be expected from analyses by this method.
Maine Agricultural Experiment Station
Carpenter, P.N., A. Ellis, H.E. Young, and T.E. Byther. 2008. A critical evaluatino of results from spectrographic analysis of plant tissue. Maine Agricultural Experiment Station Technical Bulletin 30.