| wheat_var_itk {KenSyn} | R Documentation |
Network of experiment to evaluate Wheat varieties on one single year with different cropping systems.
Description
The data set consists of measurements of wheat yields from a network of field experiments with different cropping systems designed to evaluate and compare performances of different varieties or varietal mixtures. This extract consists of 5 different experiments corresponding to five different places and 12 varieties or varietal mixtures. ITK2 cropping system : "normal" inputs according to regional recommandations ITK3 cropping system : aims for a lower yield goal with reduced inputs (seeding rates, nitrogen fertilization (-30 uN / ha) and reduced protection against diseases and pests) The experimental designs used are complete random block designs TODO : CHECK The number of repetitions in each experiment is equal to three.
Usage
wheat_var_itk
Format
a RangedData instance, 1 row per measurement. annee : year, lieu : place, experimentation : experiment name, variete : variety, bloc : block of the design, rdt : Wheat Yield (ton/hectare)
Source
Arvalis - institut du vegetal, INRA, Chambres Agricultures et CIVAM, real data, but anonymized (place and variety). Description of complete database : Felix et al. (2016)
Examples
summary(wheat_var_itk)