narain.sorghum.uniformity {agridat} | R Documentation |
Uniformity trial of sorghum
Description
Uniformity trial of sorghum in Pakistan, 1936.
Usage
data("narain.sorghum.uniformity")
Format
A data frame with 160 observations on the following 3 variables.
row
row
col
column
yield
yield, maunds per 1/40 acre
Details
A uniformity trial with chari (sorghum) at Rawalpindi Agricultural Station (Pakistan) in kharif (monsoon season) in 1936. Each plot was 36 feet by 30.25 feet. The source document does not describe the orientation of the plots, but the fertility map shown in Narain figure 1 shows the plots are taller than wide.
Field width: 10 plots * 30.25 feet
Field length: 16 plots * 36 feet
Source
R. Narain and A. Singh, (1940). A Note on the Shape of Blocks in Field Experiments. Ind. J. Agr. Sci., 10, 844-853. Page 845. https://archive.org/stream/in.ernet.dli.2015.271745
References
None
Examples
## Not run:
library(agridat)
data(narain.sorghum.uniformity)
dat <- narain.sorghum.uniformity
# Narain figure 1
libs(desplot)
desplot(dat, yield ~ col*row,
flip=TRUE, aspect=(16*36)/(10*30.25),
main="narain.sorghum.uniformity")
## End(Not run)
[Package agridat version 1.23 Index]