title: [Comparative ecologic study of microbial biocenosis of the lettuce rhizosphere under various conditions of cultivation].
abstract: The qualitative and quantitative composition of microorganisms occurring in the rhizosphere of lettuce plants grown in a Svet hot-house on the Balcanin substrate using humates, canned and silvered water was investigated. Microbiological experiments were carried out during a 300-day study within which 5 plant vegetations took place. In the course of a long-term use of the substrate. Gram-negative bacteria became inhibited, streptomycetes abundant and Penicillium and Trichoderma perdominant. The granulometric composition of the substrate and different photoperiods influenced rhizosphere microorganisms without changing substrate microorganisms. It can be concluded that humates and canned water help maintain microbiological activity of the plant rhizosphere which allows a longer-term use of the Balcanin substrate for plant cultivation in the Svet hot-house.
authors.forename: N A
authors.initials: NA
authors.lastname: Drugova
authors.forename: L S
authors.initials: LS
authors.lastname: Chernova
mesh_terms: D001419:Bacteria / Q000254:growth & development / Q000302:isolation & purification*; D003470:Culture Media; D004463:Ecology; D005658:Fungi / Q000254:growth & development / Q000302:isolation & purification*; D066298:In Vitro Techniques; D010945:Plants, Edible / Q000254:growth & development / Q000382:microbiology*; D014675:Vegetables
chemical_list: D003470:Culture Media
vernacular_title: Sravnitel'no-ékologicheskoe issledovanie mikrobnogo tsenoza rizosfery salata v razlichnykh usloviiakh vyrashchivaniia.