Uniformity trial of corn. — jones.corn.uniformity • agridat

Uniformity trial of corn in Iowa in 2016.

data("jones.corn.uniformity")

Format

A data frame with 144 observations on the following 3 variables.

col: column ordinate
row: row ordinate
yield: yield, bu/ac

Details

This data corresponds to field "ISU.SE" in the paper by Jones.

Field width: 12 columns, 4.6 meters each.

Field length: 12 rows, 3 meters each.

Electronic version provided as an online supplement. The "row" and "col" variables in the supplement have been swapped for the presentation of the data here in order to be more consistent with the figures in the paper.

Used with permission of Marcus Jones.

Source

Jones, M., Harbur, M., & Moore, K. J. (2021). Automating Uniformity Trials to Optimize Precision of Agronomic Field Trials. Agronomy, 11(6), 1254. https://doi.org/10.3390/agronomy11061254

References

None

Examples

# \dontrun{
library(agridat)
data(jones.corn.uniformity)
dat <- jones.corn.uniformity
library(desplot)
# Compare to figure 5 of Jones et al.
desplot(dat, yield ~ col*row,
        aspect=(12*4.6)/(12*3),
        main="jones.corn.uniformity")

# }