Comparison of four EMC/ERH equations
ABSTRACT Four EMC/ERH equations (Modified-Henderson, Chung-Pfost, Modified-Halsey and Modified-Oswin) are evaluated for their abiUty to fit data for grains and seeds. Thirty-six data sets comprising 18 crops are included. Comparisons are based on mean relative percentage deviation, standard error of the estimated value and residual plots. The Modified-Henderson and Chung-Pfost equations are good models for starchy grains and fibrous materials. The Modified-Halsey equation is a good model for high oil and protein products. The Modified-Oswin equation is a good model for popcorn, corncobs, whole pods of peanut and some varieties of corn.