title: Post blocking gone too far! Recovery of information and spatial analysis in field experiments.
abstract: Federer (1998, Biometrics 54, 471-481) presents two analyses of field data in which high-order polynomials are fitted as random regressions to remove spatial variation. We challenge the justification of this approach and suggest some alternatives.
authors.affiliation: NSW Agriculture, Orange Agricultural Institute, Australia. Arthur.Gilmour@agric.nsw.gov.au
authors.forename: A R
authors.initials: AR
authors.lastname: Gilmour
mesh_terms: D000818:Animals; D001517:Coleoptera / Q000235:genetics; D005838:Genotype; D008957:Models, Genetic; D015233:Models, Statistical; D012044:Regression Analysis