Flora and Fauna Changes During Conversion from Conventional to Organic Farming
Table 1.1.
Factors included in the basic anova model, the nature of each factor (fixed/random),
and the denominator (error term) used in the test of significance of each factor in a
balanced design (see text). The tests of main effects period, crop and dosage assume
that their mutual interactions are zero.
Source of variation
Fixed / random
Denominator in F test (balanced
design)
Period
Fixed
MS(Year(Period))
Year(Period)
Random
MS(Residual)
Crop
Fixed
MS(Residual)
Crop×Period
Fixed
MS(Residual)
Field
Random
MS(Dosage×Field)
Dosage
Fixed
MS(Dosage×Field)
Dosage×Period
Fixed
MS(Residual)
Dosage×Crop
Fixed
MS(Residual)
Dosage×Field
Random
MS(Residual)
Dosage×Crop×Period
Fixed
MS(Residual)
Residual
Random
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