[Evaluation of soil state of agrocenoses on the basis of soil-microbiological indices] | Otsenka sostoyaniya pochv agrocenozov na osnove pochvenno-mikrobiologicheskikh pokazatelej
2008
Mereniuc, G., Academia de Stiinte a Moldovei, Chisinau (Republic of Moldova). Inst. de Microbiologie si Biotehnologie | Boincean, B.
The aim of the investigation has been to analyse the values of total microbial biomass in different model agrobiocenoses and to study the informativity of this integral soil-microbiological indice for evaluating the general state of the soil and the degree of its degradation. Total microbial biomass is an objective and sensitive indicator of the biological state of agricultural soils. Microbial biomass estimations reveal substantial soil degradation by agriculture. It was observed that continuous growth of winter wheat and sugar beet results in soil biomass decreases by up to 4 times comparing to the soil with natural vegetation. The current crop rotation systems and the modern agricultural technologies were not able to prevent microbiological degradation of the soil and caused reductions in microbial biomass by 2-3 times.
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