title: [Cause of leaf yellowing of Amomum villosum Lour. from Yunnan and its prevention].
abstract: The results of the experiment showed that manganese deficiency in soil is one of the main causes of leaf yellowing of Amomum villosum and applying trace element fertilizer can make up deficiency. Manganese sulphate can effectively prevent the leaf yellowing.
authors.affiliation: Yunnan College of traditional Chinese Medicine, Kunming.
authors.forename: X W
authors.initials: XW
authors.lastname: Wang
authors.forename: X L
authors.initials: XL
authors.lastname: Zhang
authors.forename: T H
authors.initials: TH
authors.lastname: Luo
mesh_terms: D005308:Fertilizers; D008345:Manganese / Q000032:analysis; D010935:Plant Diseases / Q000209:etiology*; D010946:Plants, Medicinal / Q000254:growth & development* / Q000648:ultrastructure; D012987:Soil / Q000032:analysis
chemical_list: D005308:Fertilizers; D012987:Soil; D008345:Manganese