Characterization of Historical Precipitation Data in Relation to Production Risk of Fall-stockpiled Tall Fescue
W. M. Clapham, J. M. Fedders, C. D. Teutsch, and W. M. Tilson
October 2011
Research
Weather data collected during field experiments are not often compared to long-term weather records in meaningful ways. We examine the results of a study of N application on yield of fall-stockpiled tall fescue in relation to concomitant and historical late-season precipitation in the Southern Piedmont Region of Virginia. Previous analysis indicated that splitting applications of 40 or 80 lb N/acre increased the probability of achieving designated yield goals. However, yields were also affected by precipitation during the stockpiling period. Monthly precipitation during the study was compared to the 58-year historical record via percentile distributions, principal component analysis, and Monte Carlo simulation.
doi:10.1094/FG-2011-1003-01-RS
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