title: [Application of the regression orthogonal design to the fertilization of Psoralea corylifolia L. for optimum yield].
abstract: This paper probes into the determination of the optimum amount of fertilization by applying regression orthogonal design. After a significance test by regression equation, a regression equation can be set up, i. e. Y = 25.21 + 9.18 Xn + 15.68 Xp - 0.4 Xn2 - 0.98 Xp2 + 0.062 Xn Xp. This equation can be used to describe the relationship between yield and amount of fertilization.
authors.affiliation: Institute of Medicinal Plant Cultivation, Sichuan Academy of Traditional Chinese Medicine, Nanchuan.
authors.forename: D
authors.initials: D
authors.lastname: Ding
authors.forename: J
authors.initials: J
authors.lastname: Lu
authors.forename: X
authors.initials: X
authors.lastname: Chen
authors.forename: D
authors.initials: D
authors.lastname: Xu
authors.forename: W
authors.initials: W
authors.lastname: Huang
authors.forename: S
authors.initials: S
authors.lastname: Liu
mesh_terms: D005308:Fertilizers; D010946:Plants, Medicinal / Q000254:growth & development*
chemical_list: D005308:Fertilizers