Growth kinetics of microbial communities in chernozem soils influenced by different long-term fertilization
1994
Blagodatskij, S.A. | Blagodatskaya, E.V. | Rozanova, L.N.
Kinetics of CO2 evolution from arable chernozem soils amended with glucose has been studied. Long-term application of mineral or organic fertilizer forms microbial community with the typical for every variant growth parameters. Fertilization with NPK for years leads to domination of K-strategist: slow growing microorganisms with ability to consume a substrate at the lowest concentrations. In the unfertilized soil a lesser part of microbial community is active, but is characterized by more pronounced r-strategist features. The microorganisms are able to the most rapid growth under unlimited conditions. There is no limitation of growth with mineral elements in chernozem constantly manured with organic. In this case the most pool of microorganisms capable of glucose mineralization is formed
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