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Standard Errors of Field Experiments at the Farm Crop Institute, Agricultural College of Norway 1
Author(s) -
Njos Arnor,
Nissen Oivind
Publication year - 1956
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1956.00021962004800090009x
Subject(s) - agronomy , field experiment , mathematics , crop , yield (engineering) , range (aeronautics) , standard deviation , statistics , environmental science , physics , biology , engineering , aerospace engineering , thermodynamics
Synopsis In calculating standard errors for 349 experiments carried out in 1951‐54, average C.V. values varied from 7.1% in barley trials to 14.5% in timothy trials, second cut. The range for 93% of the C.V.'s was from 3 to 17%. C.V.'s were larger in outlying experiments than on the main experimental farm, the average difference of 1.7% being significant. Variation in number of treatments, plot size, and yield level, accounted for 10 to 35% of the total variability in the C.V.'s.