Become an expert in R — Interactive courses, Cheat Sheets, certificates and more!
Get Started for Free

barley

Barley response to nitrogen fertilizer

Description

Data from a paper by Arild Vold on response of barley to nitrogen fertilizer

Usage

barley

Format

A data frame with 76 rows and 3 columns

year

Year when the trial was conducted (1970-1988).

NF

Nitrogen fertilizer (g/m^2).

yield

Grain yield of barley (g/m^2).

Source

Aril Vold (1998). A generalization of ordinary yield response functions. Ecological Applications. 108:227-236.

nlraa

Nonlinear Regression for Agricultural Applications

v0.89
GPL-3
Authors
Fernando Miguez [aut, cre] (<https://orcid.org/0000-0002-4627-8329>), José Pinheiro [ctb, cph] (author of nlme::nlsList, nlme::predict.gnls, nlme::predict.nlme), Douglas Bates [ctb, cph] (author of nlme::nlsList, nlme::predict.gnls, nlme::predict.nlme), R-core [ctb, cph]
Initial release

We don't support your browser anymore

Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.