R: Yield from Danish agricultural production of grain and root...

cropyield {doBy} | R Documentation

## Yield from Danish agricultural production of grain and root crop.

### Description

Yield from Danish agricultural production of grain and root crop.

### Usage

    cropyield

### Format

A dataframe with 97 rows and 7 columns.

`year`

  From 1901 to 1997.

`precip`

  Milimeter precipitation.

`yield`

  Million feed units (se details).

`area`

  Area in 1000 ha for grains and root crop.

`fertil`

  1000 tons fertilizer.

`avgtmp1`

  Average temperature April-June (3 months).

`avgtmp2`

  Average temperature July-Octobre (4 months).

### Details

A feed unit is the amount of energy in a kg of barley.

### References

Danmarks statistik (Statistics Denmark).

[Package doBy version 4.6.6 Index]