title: Modelling of microbial processes that govern degradation of organic substrates in soil, with special reference to pesticides.
abstract: We tried to develop deterministic models for kinetics of 2,4-D breakdown in the soil based on the following considerations: (i) at low concentrations degradation results from maintenance consumption by a large fraction of the soil microbial population; (ii) at high concentration in addition to the maintenance consumption there is a growth-associated carbon incorporation by a small specific microbial population. Values for the biokinetic parameters are consistent with those commonly found in the literature. Comparison between observed and simulated curves suggests that a non-negligible part of the pesticidal carbon exists as microbial by-products.
authors.affiliation: INRA, Laboratoire de Microbiologie des Sols, Dijon, France.
authors.forename: G
authors.initials: G
authors.lastname: Soulas
authors.forename: B
authors.initials: B
authors.lastname: Lagacherie
mesh_terms: D015084:2,4-Dichlorophenoxyacetic Acid / Q000737:chemistry; D001673:Biodegradation, Environmental; D008954:Models, Biological; D010575:Pesticides / Q000737:chemistry; D012987:Soil; D012988:Soil Microbiology
chemical_list: D010575:Pesticides; D012987:Soil; D015084:2,4-Dichlorophenoxyacetic Acid