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:

      data(narain.sorghum.uniformity)
      dat <- narain.sorghum.uniformity

      # Narain figure 1
      require(desplot)
      desplot(yield ~ col*row, dat,
              flip=TRUE, aspect=(16*36)/(10*30.25),
              main="narain.sorghum.uniformity")

    ## End(Not run)

[Package agridat version 1.16 Index]