scholarly journals The Influence Of Herbicides On The Number Of Microorganisms And The Biological Activity Of The Soil In The Soybean Agrocenosis

2017 ◽  
Author(s):  
I. S. Brovko ◽  
V. U. Jashchuk ◽  
Y. V. Chabaniuk
Keyword(s):  
Biological Activity ◽  
Number Of Microorganisms

scholarly journals Biological activity of edaphotopes of anthropogenic transformed ecosystems

2020 ◽  
pp. 141-152
Author(s):  
D. V. Syshchykov ◽  
I. V. Agurova ◽  
O. V. Syshchykova
Keyword(s):  
Biological Activity ◽  
Microscopic Fungi ◽  
Soil Horizons ◽  
Number Of Microorganisms ◽  
Underlying Soil ◽  
Zonal Soils

As a result of the carried out studies of biological activity of edaphotopes of anthropogenic transformed ecosystems, it was found that the largest number of microorganisms and streptomycetes it was characteristic for common chernozem. For the soil horizons of primitive undeveloped fragmented soils, was recorded the lowest percentage of the microorganisms number (on average 4-5% relative to the control). The number of streptomycetes in both intrazonal and soils of anthropogenic transformed soils and zonal soils varies in horizons. However, we have noted that in intrazonal and anthropogenic transformed soils streptomycetes are in most cases concentrated in underlying soil horizons. Our studies on micromycetes have found that this group of microscopic fungi accounts for up to 50% of the total number of microbiocenosis, with the smallest number recorded in the genetic horizons of primitive undeveloped soils on sandstone. Cellulose-destroying microorganisms in the soil microbocenosis of monitoring sites are least represented.

Biological activity of clear gray forest soil for different potato fertilizer systems

2018 ◽  
Vol 1 (94) ◽  
pp. 15-20
Author(s):  
B.V. Matviichuk ◽  
N.G. Matviichuk
Keyword(s):  
Biological Activity ◽  
Gray Forest Soil ◽  
Mineral Fertilizer ◽  
Biological Processes ◽  
Nitrogen Forms ◽  
Short Term ◽  
Potato Fertilizer ◽  
Number Of Microorganisms ◽  
Soil Changes ◽  
Consistent Application

The article deals with the question of changing the microbiological state and biological activity of the soil in different potato fertilizer systems in the short-term crop rotation of Polissya. It was found that with the consistent application of ma-nure with moderate mineral fertilizer standards, the structure of microbiological cenosis of the soil changes: against the background of their aftereffects, the total number of microorganisms increases by an average of 31%, ammonifiers - by 33%, phosphor mobilizing bacteria - by 2.6 times. The coefficients of mineralization and soil oligotrophy are calculated. It has been proved that all biological processes have positive correlation bonds with the total number of microorganisms, bacteria that use mineral nitrogen forms, ammonifiers, phosphoramidizers and actinomycetes.

scholarly journals THE BIOLOGICAL ACTIVITY OF THE RHIZOSPHERE OF SPRING BARLEY UNDER THE APPLICATION OF FERTILIZERS IN THE CONDITIONS OF THE SOUTHERN FOREST STEPPE OF WESTERN SIBERIA

2021 ◽  
Author(s):  
N.N. Shuliko ◽  
Keyword(s):  
Biological Activity ◽  
Western Siberia ◽  
Rhizosphere Soil ◽  
Spring Barley ◽  
Mineral Fertilizers ◽  
Forest Steppe ◽  
Number Of Microorganisms ◽  
Positive Effect

The biological activity of the rhizosphere soil increased upon the application of mineral fertilizers (N18P42) and their combination with straw (N18P42 + straw) by 58 and 70 %, in comparison to the control. Of the three studied factors, the application of mineral fertilizers had the highest positive effect on the number of microorganisms in the barley rhizosphere, both separately and in combination with the studied factors.

scholarly journals Influence of superabsorbent polymers on the chemical composition of strawberry (Fragaria × ananassa Duch.) and biological activity in the soil

2015 ◽  
Vol 27 (1) ◽  
pp. 63-69 ◽  
Author(s):  
Grzegorz Mikiciuk ◽  
Małgorzata Mikiciuk ◽  
Małgorzata Hawrot-Paw
Keyword(s):  
Biological Activity ◽  
Soil Bacteria ◽  
Magnesium Content ◽  
Superabsorbent Polymer ◽  
Fragaria Ananassa ◽  
Analysis Method ◽  
Superabsorbent Polymers ◽  
Number Of Microorganisms ◽  
Calcium Magnesium

Abstract By improving the air and water properties of soils, superabsorbent polymers can affect the increase and improvement of the quality of the yield of berry plants, including strawberries. Their presence in the soil has an influence on its biological activity as related to microorganisms. The aim of the research was to assess the influence of superabsorbent polymers added to the soil on the content of macroelements and sodium in the leaves and fruit of strawberry of the ‘Elsanta’ cultivar and changes in the number of soil bacteria, actinomycetes and fungi. The superabsorbent polymer (AgroHydroGel) was used in two doses: 1.8 and 3.6 g dm-3 of soil. The content of phosphorus, potassium, calcium, magnesium and sodium was assessed using the ASA method, while the content of nitrogen and sulphur was assessed by the elemental analysis method (CHNS analyser). The number of microorganisms was assessed with a BacTrac analyser and the coefficient of microorganism development extent (SR) was also determined. AgroHydroGel increased the content of nitrogen and potassium in leaves and fruit but did not affect the content of phosphorus, sulphur and sodium. The addition of the superabsorbent at a dose of 3.6 g dm-3 of soil reduced the magnesium content both in the leaves and fruit of the strawberry. AgroHydroGel decreased the content of calcium in the fruit. The use of AgroHydroGel contributed to the expansion of the K ion ratio to other ions, both in the leaves and fruits. We observed a significant increase in the amount of soil bacteria (1.8 g dm-3 dose) and no significant influence on actinomycetes and fungi (irrespective of dose used).

Regularity of formation of microbial communities in spontaneously renewabl meadows biogeocoenosis

2018 ◽  
Vol 2 (95) ◽  
pp. 42-48
Author(s):  
I.M. Malinovskaya
Keyword(s):  
Organic Matter ◽  
Biological Activity ◽  
Carbon Cycle ◽  
Microbial Communities ◽  
Functional Groups ◽  
Nitrogen Cycle ◽  
Forest Soils ◽  
Microbiological Processes ◽  
Number Of Microorganisms

Investigated direction and intensity of microbiological processes in gray forest soils of varying duration as compared to extensive and intensive ahrozemamy. It has been established that the number of microorganisms of certain ecological trophic and functional groups in the ground of the foreground changes with the time of its stay in the state of reflux. The largest number of microorganisms is characterized by microbial grouping of long-term overeating: it contains more microorganisms in the nitrogen cycle and less microorganisms in the carbon cycle compared with fewer periods of shorter duration. The soil of a long-term overgrowth is characterized by the highest total biological activity, which exceeds the activity of the soil of the perehlava from 2000 by 72.9%, and from 2007 - by 48.8%. With the increase in the duration of the flood, the intensity of the organic matter development of the soil is reduced to 3.26 and 2.59 times for the revisions from 2000 and 1987, respectively; the processes of humus destruction considerably slow down: the activity of mineralization of humus in the soil of a perennial flood is lower than the corresponding indexes of revisions from 2000 and 2007 by 50,0 and 60,0%; the phytotoxicity of the soil decreases by 9.47%.

scholarly journals Formation of the microbiota of the rhizosphere of spelt wheat and intermediate wheatgrass and biological activity of podzolized chernozem

2020 ◽  
Vol 1 (97) ◽  
pp. 7-16
Author(s):  
V.P. Karpenko ◽  
◽  
I.S. Kravets ◽  
D.M. Adamenko
Keyword(s):  
Biological Activity ◽  
Optimal Level ◽  
Microbiological Analysis ◽  
Grain Crops ◽  
Leading Role ◽  
Number Of Microorganisms ◽  
Carbon Release ◽  
The Creation ◽  
The Difference ◽  
Perennial Grain

Soil microorganisms play a leading role in the formation of the nutrient regime of the soil, which determines the level of future crop harvest. A complex system of soil-plant-microorganisms is formed, with the participation of which the creation and decomposition of organic matter, the circulation of substances in nature, the preservation of fertility and the creation of an optimal level of nutrients supply. The number of amonifiers in the rhizosphere of cereals changes under the influence of the plant species. The smallest number of amonifiers was noted in the rhizosphere of the Zorya Ukraine — 183.3  28,52, in the rhizosphere of Kernza® and Khors — 202,6  68,0 and 202,2  66,4, respectively, which exceeded the spelt indicator by 10,3–10,5 %. There were 47,5–48,0 103 CFU/g soil of nitrifiers in the soil of the fallow, Khors and Kernza®, in the Zorya Ukraine — 46,0 103 CFU/g soil due to higher aeration and low soil moisture. The difference between the data on cellulolytic microorganisms of the spelе rhizosphere and wheatgrass hybrids was 6,8–9,2 %. The biological activity of the soil is one of the most important indicators of its fertility and cultivation. The most informative indicator is the level of СО2 emission, On the variant the fallow is — 0,39 mg / dm2 per hour, in other variants 0,26–0,34 mg/dm2 per hour. Cultivation of spelt without fertilization leads decrease intensity of carbon release in the 1,5. The cultivation of perennial cereal crops allows maintaining this indicator at a higher level. The intensity of fiber decomposition in the soil of fallow and wheat-wheatgrass hybrids was 66–69 %, and with spelt — 58 %. The amonification capacity in the Zarya Ukrainy variant — 7 mg N-NH4/kg of soil, and with wheat-wheatgrass hybrids at the fallow level — 8–9 mg N-NH4/kg of soil. The same trend persisted with ratio to the opposite process — nitrification. The results of microbiological analysis of the soil selected for different grain crops indicate that the root exudates of plants create favorable conditions for the vital activity of microorganisms. Comparison of the state of populations from agricultural areas with the microbiota of the biocenosis indicates the importance of including perennial grain crops in the crop rotation, which will increase the number of microorganisms in the rhizosphere and improve the conditions for the passage of soil-forming processes.

scholarly journals Formation of links between microorganisms of certain groups in haplic luvisol under the influence of mineral fertilization and liming

2021 ◽  
pp. 24-33
Author(s):  
І.M. Malynovska ◽  
M.A. Tkachenko
Keyword(s):  
Biological Activity ◽  
Soil Fertility ◽  
Nitrogen Mineralization ◽  
Spring Wheat ◽  
Soil Microbiology ◽  
Mineral Nitrogen ◽  
Biochemical Activity ◽  
Systems Research ◽  
Number Of Microorganisms ◽  
Physiological And Biochemical

The aim of the research was to form connections between separate groups of microorganisms as a part of groups of gray forest soil (Haplic Luvisol) during the cultivation of spring wheat with the use of various fertilizers and liming systems. Research methods: microbiological, laboratory-analytical, statistical. The research was carried out in the landfill monitoring system on the basis of a stationary experiment of the Department of Agrosoil Science and Soil Microbiology at the NSC “Institute of Agriculture of NAAS” - Development and improvement of intensive cultivation technologies of agricultural crops on the basis of the expanded soil fertility reproduction. The main results of the study: The number of ammonifiers is positively correlated with the total number of microorganisms (0,955), the number of mineral nitrogen immobilizers, denitrifiers, nitrifiers, cellulose-destroying bacteria, actin- and micromycetes, the coefficient of nitrogen mineralization compounds, the total biological activity (0,911). The conclusions of previous research are confirmed: Azotobacter is not a diagnostic microorganism for effective soil fertility, as evidenced by the insignificance of the correlation coefficients between the number of Azotobacter and the yield of spring wheat (0,265), winter wheat (0,131), soybeans (0,303). The number of Azotobacter correlates inversely with most of the studied indicators, especially significant - with the number of polysaccharide-synthesizing microorganisms, actinomycetes, melanin-synthesizing micromycetes (-0,719), acid-forming microorganisms (- 0,611), physiological and biochemical activity of own cells, pedotrophic index. The direct nature of the relationship is established between the number of polysaccharide-synthesizing microorganisms as a diagnostic group for the optimal mineral nutrition of plants and the number of mineral nitrogen immobilizers (0,854), pedotrophs (0,970), cellulose-destructive (0,724) and autochthonous (0,878) microorganisms, actinomycetes, micromycetes, the total number of microorganisms (0,588), probability of colony formation of denitrifiers, autochthonous microorganisms and micromycetes, nitrogen mineralization coefficient, total biological activity (0,646). Indigenous microorganisms show a high level of direct dependence on the number of mineral nitrogen immobilizers, pedotrophs, cellulose-destroying and polysaccharide-synthesizing microorganisms, the total number of microorganisms, physiological and biochemical activity of denitrifiers and own cells (0,935).

scholarly journals Formation of soil microflora in Trifolium pratense’s agrocenosis depending on the method of tillage

2021 ◽  
Vol 36 ◽  
pp. 03008
Author(s):  
Ivan Shuvar ◽  
Ivan Dudar ◽  
Olha Dudar ◽  
Hanna Korpita ◽  
Bogdan Shuvar
Keyword(s):  
Biological Activity ◽  
Trifolium Pratense ◽  
Podzolic Soil ◽  
Soil Microflora ◽  
Forest Steppe ◽  
Biological Processes ◽  
Microbiological Activity ◽  
Quantitative Characteristics ◽  
Number Of Microorganisms ◽  
The Relationship

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.

Virus-Like Particles in a Human Breast Cancer: Structural Similarity to Previously Reported Particles

1973 ◽  
Vol 31 ◽  
pp. 378-379
Author(s):  
G. Kasnic ◽  
S. E. Stewart ◽  
C. Urbanski
Keyword(s):  
Breast Cancer ◽  
Biological Activity ◽  
Human Breast Cancer ◽  
Osteogenic Sarcoma ◽  
Human Tumor ◽  
Structural Similarity ◽  
Cell Tumor ◽  
Human Breast ◽  
Human Tumor Cell ◽  
Type Particle

We have reported the maturation of an intracisternal A-type particle in murine plasma cell tumor cultures and three human tumor cell cultures (rhabdomyosarcoma, lung adenocarcinoma, and osteogenic sarcoma) after IUDR-DMSO activation. In all of these studies the A-type particle seems to develop into a form with an electron dense nucleoid, presumably mature, which is also intracisternal. A similar intracisternal A-type particle has been described in leukemic guinea pigs. Although no biological activity has yet been demonstrated for these particles, on morphologic grounds, and by the manner in which they develop within the cell, they may represent members of the same family of viruses.

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