Rice RCB with subsamples

An experiment on rice with 9 fertilizer treatments in 4 blocks, 4 hills per plot.

data("grover.rcb.subsample")

Format

A data frame with 144 observations on the following 4 variables.

tiller

number of tillers

trt

treatment factor

block

block factor

unit

subsample unit

Details

An experiment on rice with 9 fertilizer treatments in 4 blocks, 4 hills per plot. The response variable is tiller count (per hill). The hills are sampling units.

Source

Grover, Deepak & Lajpat Rai (2010). Experimental Designing And Data Analysis In Agriculture And Biology. Agrotech Publishing Academy. Page 85. https://archive.org/details/expldesnanddatanalinagblg00023

References

None.

Examples

# \dontrun{
  data(grover.rcb.subsample)
  # Fixed-effects ANOVA. Matches Grover page 86.
  anova(aov(tiller ~ block + trt + block:trt, data=grover.rcb.subsample))
#> Analysis of Variance Table
#> 
#> Response: tiller
#>            Df Sum Sq Mean Sq F value  Pr(>F)    
#> block       3    930  310.01  3.6918 0.01415 *  
#> trt         8  11816 1477.00 17.5891 < 2e-16 ***
#> block:trt  24   4721  196.71  2.3425 0.00158 ** 
#> Residuals 108   9069   83.97                    
#> ---
#> Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
  ## Response: tiller
  ##            Df Sum Sq Mean Sq F value  Pr(>F)    
  ## block       3    930  310.01  3.6918 0.01415 *  
  ## trt         8  11816 1477.00 17.5891 < 2e-16 ***
  ## block:trt  24   4721  196.71  2.3425 0.00158 ** 
  ## Residuals 108   9069   83.97                    
# }