agridat (version 1.23)

love.cotton.uniformity: Uniformity trial of cotton

Description

Uniformity trial of cotton

Usage

data("love.cotton.uniformity")

Format

A data frame with 170 observations on the following 3 variables.

row

row

col

column

yield

yield

Details

Within each 100-foot row, the first 20 feet were harvested as a single plot, and then the rest of the row was harvested in 5-foot lengths.

Crop location is unknown, but likely Southeast Asia given Love's work teaching in China. Date is likely about 1930-1932 based on the Cornell reference below.

Possibly more information would be in the collected papers of Harry Love at Cornell: https://rmc.library.cornell.edu/EAD/htmldocs/RMA00890.html Cotton - Plot Technic Study 1930-1932. Box 3, Folder 34

References

None.

Examples

if (FALSE) {

library(agridat)

  data(love.cotton.uniformity)
  # omit first column which has 20-foot plots
  dat <- subset(love.cotton.uniformity, col > 1)

  libs(desplot)
  desplot(dat, yield ~ col*row,
          flip=TRUE, aspect=20/80, # just a guess
          main="love.cotton.uniformity")
  
}