Flora and Fauna Changes During Conversion from Conventional to Organic Farming

Table 4.1.   Factors included in the anova of Skylark occurrence if no dosage effect was apparent. 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 are shown. The tests of main effects period and crop assume that the crop×period interaction is 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(Plot(Field)) Plot(Field) Random MS(Residual) Residual Random