Yield-density relationship for Brown Imperial Spanish onions

Description

These data were colllected in a study of the relationship between the yield of Brown Imperial Spanish onion plants and the density of planting.

The variables are:

Density density of planting (plants/m^2)
Yield yield (g/plant)
Locality a code to indicate Mount Gambier (1) or Uraidla (2)

The data were collected by I.S.Rogers (South Australian Dept. of Agriculture & Fisheries). They are listed in Ratkowsky (1983), Nonlinear Regression Modeling. Dekker, New York.

Want to suggest features or report bugs for rdrr.io? Use the GitHub issue tracker.