Year: 2023
Type: article
Abstract: An important biological property of the soil is its regenerative ability, which is the basis for agricultural reproduction of soil fertility. It depends not only on individual chemical or physical parameters, but also on the functioning of the soil biota, the cycle of processes in the “plant–soil” system. The change of vegetation cover leads to a change in the composition of soil biota, disruption of the circu-lation of substances and a decrease in bioproductivity. The purpose of the research is to study the biological activity of the microbial community of soils of an agricultural carbon landfill located in the central agroecological zone of the Samara region. The diagnosis of the number of microorganisms of various ecological and trophic groups was carried out by the classical method of sowing on agarized elective nutrient media of various composition. The number of organisms-ammonifiers – protein destructors of various natures, amylolytic microorganisms – immobilizers of readily available carbon, assimilating mineral forms of nitrogen, accounting for the number of micromycetes was carried out on Chapek medium, actinomycetes - on starch–ammonia agar. The quantitative com-position of soil microorganisms inhabiting the chernozem soils most characteristic of the region in natural ecosystems, as well as in the gradient of their change from natural to natural, has been determined. The biological activity of soils affected by agricultural activity and soils of the natural ecosystem has been studied. It has been established that anthropogenic load has a negative effect on the number of microorganisms inhabiting the soils of agrocenoses. The coefficient of soil mineralization under agricultural crops (spring wheat, winter wheat, peas, sunflower) varied from 1.2 to 1.9, which indicates an increase in the activity of soil microflora aimed at mineralization of nitrogen compounds in the soil under anthropogenic load.
Language: English
Subfield: Soil Science
Domain: Life Sciences
SDGs: Life on land, Zero hunger
Open Access status: hybrid
OpenAlex ID: W4409703923