Functional Structure of Microbial Communities of Deep Chernozem under the Influence of Hydrothermic and Trophic Factors

Demyanyuk, Olena; Sherstoboeva, О. V.; Tkach, Ye.

doi:10.15407/microbiolj80.06.094

Cited by 6 publications

(4 citation statements)

References 18 publications

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“…The number of microorganisms in the soil (indicator of soil biogenicity), as an important component of soil organic matter quantitatively and qualitatively, depending on various factors, in particular, soil type, climatic conditions, elements of agricultural technology, environmental reaction (pH), etc. [1,2,3,9,14,15,17,22]. It has been found that there are fewer microorganisms in sandy and stony soils than in dark gray and chernozem, and especially fertilized soils.…”

Section: Introductionmentioning

confidence: 99%

“…A number of scientists [3,9,15,16,17,21] note the influence of fertilizer system, tillage method, humidity, temperature, soil density, soil composition where the transformation takes place, humus and nutrients content, abundance, biomass and species composition of microorganisms, etc. on the biological activity of the soil.…”

Section: Introductionmentioning

confidence: 99%

“…Increased aeration activates the vital processes of aerobic microorganisms. Increasing the density of the soil structure reduces the content of oxygen in the soil air and increases carbon dioxide [3,9,15,16,17,21].…”

Section: Introductionmentioning

confidence: 99%

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Formation of soil microflora inTrifolium pratense’sagrocenosis depending on the method of tillage

et al. 2021

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The biological activity of the soil was studied according to the indicators of the number of microflora on the dark gray podzolic soil of the western Forest-Steppe of Ukraine. The influence of the methods of tillage on the course of biological processes under Trifolium pratense is clarified. The relationship between the quantitative characteristics of the microbial grouping of soil agrocenosis of the culture, its biological activity and methods of tillage. It was found that the largest number of microorganisms was observed in the variants of combined tillage. Over the years of research, the highest yield of hay was obtained by the Combined tillage (124.5 c / ha), the lowest - by chisel tillage (106.5 c / ha), which is due to changes in microbiological activity of the soil.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Formation of soil microflora inTrifolium pratense’sagrocenosis depending on the method of tillage

et al. 2021

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“…Microorganisms ensure the ecological balance of agroecosystems. They are able to activate the cycle of elements that are important and poorly accessible to higher organisms (Arlauskienė et al, 2009, Demyanyuk et al, 2018. The number of microbiotas depends on the influence of various factors: soil type, climatic conditions, elements of cultivation technology, environmental reactions (pH), etc.…”

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confidence: 99%

The Effect of Tillage Method on the Nutrient Regime of Soil during the Growing of Trifolium pratense

Dudar¹,

Shuvar²,

Korpita³

et al. 2023

Acta Technologica Agriculturae

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The article presents the results of studying the influence of tillage methods on the number of bacteria and fungi in the arable soil layer, nutrient indicators, and, consequently, the yield of Trifolium pratense. The purpose of the study is to determine how tillage affects the feeding regime and yield of Trifolium pratense. The research was conducted at the experimental field of the Educational and Scientific Research Center of Lviv National Environmental University. For the study of microorganisms in the arocenosis of meadow clover, soil samples were taken using a cylindrical drill from arable (0–20 cm) and sub-soil (20–40 cm) layers with an average weight of an individual sample of 300 g. For microbiological analysis, average samples from five individual samples were prepared. The isolation of the main agronomically useful groups of microorganisms from the soil was carried out by the method of microbiological sowing of soil extracts on solid nutrient media: for fungi – wort-agar, for bacteria – meat-peptone agar (MPA). The dilution of the soil extract for fungi and bacteria was, respectively, 1 : 1000; 1 : 100000. Microbiological seeding was performed in triplicate. The calculation of the total number of microorganisms in the soil was carried out by Tepper´s method. The yield of crops and the results of laboratory studies were processed by the method of variance analysis. The application of a tiered tillage allowed to increase the yield of Trifolium pratense green mass by 4.5 t·ha−1 (+17.0%) compared to the control (conventional plowing). It is established that tier ploughing with the PYA-4-40 plough promotes uniform distribution of nutrients in the arable soil layer and formation of homogeneous soil fertility. In such a soil environment, much more favorable conditions are created for the development of microflora and more intensive microbiological processes compared to the options of chisel and conventional (control) tillage, and, consequently, the formation of high yields of green Trifolium pratense.

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Microbiota in the Rhizosphere of Cereal Crops

Карпенко¹,

Poltoretskyi²,

Liubych³

et al. 2021

Mikrobiol. Z.

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Today, spelt wheat grain is used to produce high quality food. Intermediate wheatgrass is a promising crop for prairie restoration. One of the elements of biologization is the influence of growing crops on the microbiota of soil rhizosphere. The microbiota of spelt wheat and intermediate wheatgrass soil rhizosphere remains insufficiently studied. Aim. To study the number of individual groups of microbiota in dynamics in the rhizosphere of cereal crops (spelt wheat, intermediate wheatgrass) depending on the weather conditions and the phase of plants development. Methods. Classical microbiological, statistical methods were used in the work. In particular, the study of the number of microorganisms of different ecological and trophic groups (ammonifying, nitrifying, cellulolytic and nitrogen-fixing) was carried out according to generally accepted methods in soil microbiology. The reliability of the influence of factors was determined by the probability value «р» level which was calculated using STATISTICA 8 program. Results. The amount of ammonifying and cellulolytic microorganisms in the soil rhizosphere of spelt wheat is significantly higher compared to soft wheat. The rhizosphere microbiota amount of the intermediate wheatgrass on the 2–3 year of cultivation was more resistant to adverse environmental factors compared to soft wheat. The soil rhizosphere microbiota did not change a lot depending on the phase of plant development during the vegetation period of cereal crops (spelt wheat, intermediate wheatgrass). Conclusions. The formation of rhizosphere microbiota of spelt wheat and intermediate wheatgrass was first analyzed under the conditions of the Right-Bank forest-steppe of Ukraine. The conducted studies indicate the feasibility of growing and use of spelt wheat in breeding programs to create cultivars of soft wheat with higher activity of rhizosphere microbiota. The number of ammonifying, nitrifying and cellulolytic microorganisms of soil rhizosphere of intermediate wheatgrass was significantly higher compared to soft wheat during all growth stages. The conducted studies confirm the practical application of intermediate wheatgrass to preserve and increase soil fertility. Intermediate wheatgrass can be grown for up to three years in one field, as microbiological activity reaches its maximum development.

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Functional Structure of Microbial Communities of Deep Chernozem under the Influence of Hydrothermic and Trophic Factors

Cited by 6 publications

References 18 publications

Formation of soil microflora inTrifolium pratense’sagrocenosis depending on the method of tillage

Formation of soil microflora inTrifolium pratense’sagrocenosis depending on the method of tillage

The Effect of Tillage Method on the Nutrient Regime of Soil during the Growing of Trifolium pratense

Microbiota in the Rhizosphere of Cereal Crops

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