scholarly journals Dinamica efectivului numeric al bacteriilor amonificatoare și denitrificatoare în sectorul inferior al râului Prut în perioada a. 2015-2019

2021 ◽  
Author(s):  
Igor Subernetkii ◽  
◽  
Maria Negru ◽  
Keyword(s):  
Nitrogen Cycle ◽  
Spatial Dynamics ◽  
Number Of Microorganisms ◽  
Prut River

This paper reflects the seasonal and spatial dynamics of the number of microorganisms of the nitrogen cycle (ammonifiers and denitrifiers) in the lower areas of the Prut River.

Evaluation of Mineral and Bacterial Fertilization Influence on the Number of Microorganisms from the Nitrogen Cycle in Soil under Maize

2012 ◽  
Vol 43 (21) ◽  
pp. 2777-2788 ◽  
Author(s):  
Aleksandra Stanojkovic-Sebic ◽  
Dragutin A. Djukic ◽  
Leka Mandic ◽  
Radmila Pivic ◽  
Aleksandar Stanojkovic
Keyword(s):  
Nitrogen Cycle ◽  
Number Of Microorganisms

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 The balance of nitrogen forms and number of microorganisms of the nitrogen cycle in vermicomposts based on leaf litter and cow manure

2021 ◽  
Vol 935 (1) ◽  
pp. 012002
Author(s):  
A Kurovsky ◽  
E Kornievskaya ◽  
Ya Gummer ◽  
A Babenko ◽  
M Saratchandra Babu
Keyword(s):  
Nitrogen Content ◽  
Leaf Litter ◽  
Total Nitrogen ◽  
Nitrogen Cycle ◽  
Dry Matter ◽  
Total Nitrogen Content ◽  
Cow Manure ◽  
Nitrogen Forms ◽  
Number Of Microorganisms ◽  
Kjeldahl Method

Abstract The processes of nitrogen transformation in the vermiculture system by Eisenia fetida using cow manure and leaf litter (poplar with small birch addition) have been investigated. Vermicomposting was carried out for five months in half-cubic meter wooden containers. The Kjeldahl method and potentiometry determined the total nitrogen, NH4 + and NO3- content in vermicompost. The total nitrogen content in cow manure was 1.83%, in leaf litter - 0.73%. The nitrate and ammonium content in non-composted leaf litter was 351 and 7.3 mEq/kg of dry matter, respectively. The nitrate and ammonium content in non-composted cow manure was 18.2 and 22 mEq/kg, respectively. Both investigated substrates of vermicomposting did not influence total nitrogen content. In cow manure-based vermicomposting system, the ammonium amount decreased by 5.3 times, while the concentration of nitrates increased by 6.5 times. In the leaf litter-based vermicomposting system, the ammonium amount increased by 2.9 times, and the amount of the nitrate increased by 1.6 times. The Azotobacter bacteria actual activity in both vermicomposts was close to 100%. The sum of nitrogen cycle microorganisms in manure vermicompost was 2.4 times higher than in leaf litter vermicompost.

Sozial-räumliche Dynamiken der Agrartreibstoffe.

2016 ◽  
Vol 46 (184) ◽  
pp. 423-440 ◽  
Author(s):  
Kristina Dietz ◽  
Bettina Engels ◽  
Oliver Pye
Keyword(s):  
Political Economy ◽  
Capital Flows ◽  
Spatial Dynamics ◽  
Financial Sector ◽  
Comprehensive Analysis ◽  
Spatial Theory ◽  
Global Political Economy

This article explores the spatial dynamics of agrofuels. Building on categories from the field of critical spatial theory, it shows how these categories enable a comprehensive analysis of the spatial dynamics of agrofuels that links the macro-structures of the global political economy to concrete, place-based struggles. Four core socio-spatial dynamics of agrofuel politics are highlighted and applied to empirical findings: territorialization, the financial sector as a new scale of regulation, place-based struggles and transnational spaces of resources and capital flows.

2% Chlorhexidine in root canal treatment: A review

2020 ◽  
Vol 3 (12) ◽  
Author(s):  
Dr. Vishal Thakur ◽  
Dr. Manpreet Kaur ◽  
Priyanka Jamwal ◽  
Bharti Thakur
Keyword(s):  
Root Canal ◽  
Root Canal Treatment ◽  
Number Of Microorganisms ◽  
By Products

Abstract- - Microorganisms and their by-products are considered to be the major cause of pulp and peri-radicular pathologies, and for the dis-infection of these canals we need proper shaping, cleaning of these canals with mechanical instruments and chemical irrigants. Here we are discussing about the chlorohexidine with a concentration of 2% in root canal treatment. It has been found that there is a highly significant reduction in the number of microorganisms in the chlorhexidine-treated specimens after instrumentation and irrigation. Here we will discuss the merits and de-merits of chlorhexidine and its use in root canal as an irrigant or medicaments.

Disinfection of Fruits with Activated Water

2019 ◽  
Vol 10 ◽  
pp. 1864-1872
Author(s):  
Prof. Teodora P. Popova
Keyword(s):  
Antimicrobial Activity ◽  
Aqueous Solutions ◽  
Antimicrobial Properties ◽  
The Other ◽  
Gram Negative Bacteria ◽  
High Antimicrobial Activity ◽  
Gram Negative ◽  
E Coli ◽  
Number Of Microorganisms ◽  
Lower Effect

The effect of ionized aqueous solutions (anolytes and catholyte) in the processing of fruits (cherries, morellos, and strawberries) for decontamination has been tested. Freshly prepared analytes and catholyte without the addition of salts were used, as well as stored for 7 months anolytes, prepared with 0.5% NaCl and a combination of 0.5% NaCl and 0.5% Na2CO3. The anolyte prepared with a combination of 0.5% NaCl and 0.5% Na2CO3, as well as the anolyte obtained with 0.5% NaCl, exhibit high antimicrobial activity against the surface microflora of strawberries, cherries, and sour cherries. They inactivate E. coli for 15 minutes. The other species of the fam. Enterobacteriaceae were also affected to the maximum extent, as is the total number of microorganisms, especially in cherries and sour cherries. Even stored for 7 months, they largely retain their antimicrobial properties. Anolyte and catholyte, obtained without the addition of salts, showed a lower effect on the total number of microorganisms, but had a significant effect on Gram-negative bacteria, and especially with regard to the sanitary indicative E. coli.

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