Functioning of the microbial complex of gray forest soil in the maize agrocenosis under the influence of biological products
DOI:
https://doi.org/10.33730/2310-4678.1.2025.328372Keywords:
soil microbiome, microbial preparations, physiological groups of microorganisms, microbiological processes, biogenicity, agrochemical indicators, productivityAbstract
The paper presents the results of a comprehensive study of the impact of the biological preparations Groundfix (phosphorus-potassium mobilizer) and Mycofriend (complex mycorrhizal-forming preparation) on the number of soil microorganisms, the direction of microbiological processes in the soil and its agrochemical state, and corn yield. The research methodology included the use of field (assessment of biometric indicators and crop capacity) and laboratory analysis methods (microbiological — determination of the number of microorganisms of physiological and taxonomic groups, the direction of microbiological processes; agrochemical — determination of the content of hydrolyzed nitrogen, mobile phosphorus, exchangeable potassium, humus, pH). The conducted studies allowed to establish that the application of mycorrhizal preparation contributed to the increase in the number of ammonifiers, amylolytic agents, oligonitrophiles (in particular, bacteria of the genus Azotobacter), organic phosphate mobilisers, cellulosolytics, oligotrophs, pedotrophs and micromycetes by 1.1–2.9 times compared to the control. The use of the phosphorus-potassium mobilising preparation resulted in a 1.2–3.0–fold increase in the number of ammonifiers, organic phosphate mobilisers, Azotobacter bacteria, pedotrophs and micromycetes. The use of both biological preparations contributed to the optimization of the functioning of the soil microbial complex, increased soil biogenicity, reduced the proportion of pathogens, intensified microbiological processes of soil organic matter transformation, improved provision of microbiota with easily accessible nutrients and soilmobile phosphorus, as well as obtaining a 18% (Groundfix) and 19% (Mycofriend) higher corn yield compared to the control. Thus, the application of complex biological products in environmentally sound crop-growing technologies can be an effective method of increasing the productivity of agroecosystems and obtaining ecologically safe crop products.
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