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 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.

scholarly journals Enantioselective Catalytic C-H Amidations: An Highlight

Catalysts ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 471
Author(s):  
Eleonora Tosi ◽  
Renata Marcia de Figueiredo ◽  
Jean-Marc Campagne
Keyword(s):  
Biological Activity ◽  
Chemical Synthesis ◽  
Crucial Role ◽  
Medicinal Chemistry ◽  
Life Sciences ◽  
Biological Processes ◽  
Chiral Molecules ◽  
Material Sciences ◽  
Innovative Approaches

The crucial role played by compounds bearing amide functions, not only in biological processes but also in several fields of chemistry, life polymers and material sciences, has brought about many significant discoveries and innovative approaches for their chemical synthesis. Indeed, a plethora of strategies has been developed to reach such moieties. Amides within chiral molecules are often associated with biological activity especially in life sciences and medicinal chemistry. In most of these cases, their synthesis requires extensive rethinking methodologies. In the very last years (2019–2020), enantioselective C-H functionalization has appeared as a straightforward alternative to reach chiral amides. Therein, an overview on these transformations within this timeframe is going to be given.

scholarly journals The Influence of Selected Meteorological Factors on Microbial Biomass and Mineralization of Two Organic Fertilizers

2011 ◽  
Vol 39 (1) ◽  
pp. 107
Author(s):  
Mignon S. SANDOR ◽  
Traian BRAD ◽  
Aurel MAXIM ◽  
Constantin TOADER
Keyword(s):  
Biological Activity ◽  
Microbial Biomass ◽  
Soil Ph ◽  
Soil Microbial Biomass ◽  
Organic Fertilizers ◽  
Barley Straw ◽  
Short Term ◽  
Soil Microbial ◽  
Fertilized Soil ◽  
Mineralization Processes

A mesocosm study was conducted in order to evaluate the effects of short-term rainfall and temperature variation on soil microbial biomass and bacteria to fungi ratio. In addition, the relation between the decomposition process of two organic fertilizers, cattle manure and barley straw, and the activity of soil microbial biomass was also studied. In order to assess the effect of biological activity on soil fertility the dynamics of soil pH, N-NO3-, N-NH4+, Corg and Nt during plant growing season was measured. The results suggest that short-term variation of climate had a significant effect on microbial biomass with dry periods distinguished by a reduced microbial biomass compared to wet periods. The ratio bacteria to fungi seems also to be sensitive to variations in rainfall and temperature regime, however further studies are required to draw a definitive conclusion. Regarding the type of fertilizer used, the straw treatments showed higher microbial biomass than the manure treatments, but higher decomposition rate was observed in manure fertilized soil. The effect of soil biological activity on soil pH was limited for both manure and straw treatments while the changes of the soil nitrate amounts are related to the microbial biomass. The study indicates that nitrate immobilization and mineralization processes are influenced by meteorological conditions and microbial biomass dynamics. In contrast, soil organic carbon and total nitrogen did not seem to be affected by variations in temperature, rainfall and microbial activity.

scholarly journals Impact of spineless cactus cultivation (O. Ficus-indica) on the thermal characteristics of soil

2018 ◽  
Vol 13 (1) ◽  
pp. 1
Author(s):  
Willames De Albuquerque Soares
Keyword(s):  
Heat Capacity ◽  
Thermal Characteristics ◽  
Thermal Characterization ◽  
Biological Processes ◽  
Volumetric Heat Capacity ◽  
Average Value ◽  
Brazilian Semiarid ◽  
Cultivation Techniques ◽  
Soil Changes

Temperature is a fundamentally important factor for understanding the physical, chemical, and biological processes that occur in soil. However, there are few studies in the Brazilian semiarid zone that seek to understand how soil degradation affects its thermal characteristics. The objective of this study was to evaluate the influence of cultivation techniques on the thermal characterization of soil, using the model proposed by Johansen. The study was conducted in the Agreste region of the state of Pernambuco, Brazil on two plots of land, one with native vegetation (Caatinga) and the other with spineless cactus (O. ficus - indica). It was observed that the procedures used to prepare the soil for cultivation of spineless cactus caused a reduction in the capacity to transmit the surface temperature to the interior of the soil. Changes in the physical properties of the soil required for cultivation resulted in a reduction in the average value of the volumetric heat capacity of about 22%; an increase of approximately 5% in the average volumetric heat capacity and a 26% increase in the thermal diffusivity of the soil, as well as a reduction of approximately 50% in the heat flux from the surface of the soil.

scholarly journals ZEOLITES AND FERTILIZERS ON THEIR BASIS IN SOYBEAN CULTIVATION TECHNOLOGY IN THE VOLGA FOREST STEPPE

2021 ◽  
Vol 250 ◽  
pp. 88-94
Author(s):  
A. Kh. Kulikova ◽  
◽  
N. G. Zakharov ◽  
N. A. Khairtdinova ◽  
◽  
...  
Keyword(s):  
Amino Acids ◽  
Biological Activity ◽  
Seed Quality ◽  
Mineral Fertilizer ◽  
Field Studies ◽  
Soil Improvement ◽  
Black Soil ◽  
Forest Steppe ◽  
Experimental Field ◽  
Ulyanovsk Region

Experimental field studies were carried out on the experimental field of Ulyanovsk State Agrarian University in 2018-2020. The experiment scheme in 2019 (laid in 2018) consisted of 4 variants: 1. Control (without fertilizers); 2. Zeolite in pure form, 500 kg / ha; 3. Organic mineral fertilizer, obtained by enriching zeolites with amino acids, 500 kg / ha; 4. Zeolite 500 kg / ha + N40 (carbamide at the dose of 40 kg of nitrogen per 1 ha). In 2020, the experiment was supplemented with four variants in order to identify more appropriate doses of fertilization (zeolite enriched with amino acids, 250 kg / ha; zeolite enriched with amino acids, 500 kg / ha; zeolite enriched with carbamide, 250 kg / ha; zeolite enriched with urea , 500 kg / ha). The experiments were carried out in 3-fold repetition with a randomized placement of plots. The effect of zeolite from Yushansk deposit of Ulyanovsk region and fertilizers based on it enriched with amino acids and urea were studied in the experiment, as well as their effect on general biological activity of leached black soil, on its agrochemical parameters, photosynthetic activity of soybean crops, yield and seed quality. A significant influence of experimental fertilizers on biological activity of the soil, improvement of nutrient regime, as well as the ability of zeolite to neutralize soil acidity was found. Improvement of the soil environment in case of application of zeolite enriched with amino acids and urea as a fertilizer contributed to an increase of soybean yields by 6-14% and by 12-31% to improvement of the product quality. With an increase of the dose of fertilizers, the yield of soybean seeds increased, but not proportionally.

scholarly journals Effect of short-term hindlimb immobilization on skeletal muscle atrophy and the transcriptome in a low compared with high responder to endurance training model

PLoS ONE ◽  
2022 ◽  
Vol 17 (1) ◽  
pp. e0261723
Author(s):  
Jamie-Lee M. Thompson ◽  
Daniel W. D. West ◽  
Thomas M. Doering ◽  
Boris P. Budiono ◽  
Sarah J. Lessard ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Endurance Training ◽  
Muscle Atrophy ◽  
Female Rats ◽  
Skeletal Muscle Atrophy ◽  
Biological Processes ◽  
Short Term ◽  
Cast Immobilization ◽  
Protein Ubiquitination ◽  
Differential Gene

Skeletal muscle atrophy is a physiological response to disuse, aging, and disease. We compared changes in muscle mass and the transcriptome profile after short-term immobilization in a divergent model of high and low responders to endurance training to identify biological processes associated with the early atrophy response. Female rats selectively bred for high response to endurance training (HRT) and low response to endurance training (LRT; n = 6/group; generation 19) underwent 3 day hindlimb cast immobilization to compare atrophy of plantaris and soleus muscles with line-matched controls (n = 6/group). RNA sequencing was utilized to identify Gene Ontology Biological Processes with differential gene set enrichment. Aerobic training performed prior to the intervention showed HRT improved running distance (+60.6 ± 29.6%), while LRT were unchanged (-0.3 ± 13.3%). Soleus atrophy was greater in LRT vs. HRT (-9.0 ±8.8 vs. 6.2 ±8.2%; P<0.05) and there was a similar trend in plantaris (-16.4 ±5.6% vs. -8.5 ±7.4%; P = 0.064). A total of 140 and 118 biological processes were differentially enriched in plantaris and soleus muscles, respectively. Soleus muscle exhibited divergent LRT and HRT responses in processes including autophagy and immune response. In plantaris, processes associated with protein ubiquitination, as well as the atrogenes (Trim63 and Fbxo32), were more positively enriched in LRT. Overall, LRT demonstrate exacerbated atrophy compared to HRT, associated with differential gene enrichments of biological processes. This indicates that genetic factors that result in divergent adaptations to endurance exercise, may also regulate biological processes associated with short-term muscle unloading.

scholarly journals Alpha-1 Antitrypsin and Monocytes

2015 ◽  
Vol 25 (2) ◽  
pp. 32-35
Author(s):  
Danielius Serapinas
Keyword(s):  
Experimental Investigation ◽  
Biological Activity ◽  
Proteinase Inhibitor ◽  
Serine Proteases ◽  
Serine Proteinase ◽  
Serine Proteinase Inhibitor ◽  
Short Term ◽  
Dual Effect ◽  
Soluble Cd14 ◽  
Alpha 1 Antitrypsin

Alpha-1 antitrypsin (AAT) is the main circulating serine proteinase inhibitor. A number of studies suggest that AAT can also exhibit biological activity independent of inhibition of serine proteases. The aim of the study was to make experimental investigation of AAT influence on monocytes stimulated by bacterial endotoxyn . AAT affects monocyte responses to LPS by regulating soluble CD14 release. Here we show that a short-term monocyte exposure to AAT leads to an increase of CD14 levels (p0.05). In parallel, a short-term cell exposure to AAT significantly enhances TNFα release. However, AAT was found to have a dual effect on LPS-induced TNFα release. Probably a rapid increase in AAT concentrations during various inflammatory and infectious conditions may enhance the magnitude of monocyte responses to endotoxin and subsequently accelerate resolution of the inflammatory reaction.

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.

scholarly journals Biological activity of soils cultivated with yacón (Smallanthus sonchifolius Poep. & Endl) H. Robinson, inoculated with Azospirillum brasilense and native mycorrhizal fungi

2021 ◽  
Vol 38 (1) ◽  
pp. 125-133
Author(s):  
María Gabriela Di Barbaro ◽  
Horacio Enrique Andrada ◽  
Eleodoro Eduardo Del Valle ◽  
Celia Inés Brandán
Keyword(s):  
Biological Activity ◽  
Mycorrhizal Fungi ◽  
Azospirillum Brasilense ◽  
Microbial Consortium ◽  
Soil Samples ◽  
Biological Processes ◽  
Smallanthus Sonchifolius ◽  
Physical Chemical ◽  
Promote Plant Growth ◽  
Time Of Harvest

The soil is influenced by the roots of plants because the exudate radicals affect its physical, chemical, and biological processes. The aim of this research was to evaluate the microbial activity of soils cultivated with yacón (Smallanthus sonchifolius Poep. & Endl) H. Robinson and inoculated with microorganisms which promote plant growth. The experimental design used was randomized blocks with three repetitions per treatment. Each repetition corresponded to a 3m x 3m plot with 25 plants, in 5 cultivation lines with a distance of 70 cm apart. Four treatments were applied at the time of plantation. These consisted of yacón propagules inoculated with Azospirillum brasilense (T1) and native mycorrhizal fungi (T2) inoculated with the microbial consortium (T3). In the control treatments, the propagules were not inoculated with these microorganisms (T0). Soil samples were collected in lots cultivated with yacón located in the Province of Catamarca, in the northwest of Argentina. The samples were collected at the time of implantation and harvest during three agricultural cycles. The total Biological Activity (TBA) of the collected samples was determined by Fluorescein Diacetate Hydrolysis. The TBA of the soil was affected by the different crop treatments, which rose in the analyzed soils and was statistically different from the control treatments. Significant differences were also observed between the TBA of the soils at the beginning of the crops in comparison with the recorded values of the crop at the time of harvest. The inoculation of yacón propagules with A. brasilense and native mycorrhizal fungi affects the TBA of the cultivated soils marking a significant increase.

Time and taphonomy: Actualistic evidence for time-averaging of benthic foraminiferal assemblages

1993 ◽  
Vol 6 ◽  
pp. 34-56 ◽  
Author(s):  
Ronald E. Martin
Keyword(s):  
High Resolution ◽  
Ecosystem Management ◽  
Deep Sea ◽  
Time Averaging ◽  
Biological Processes ◽  
Exploration And Exploitation ◽  
Short Term ◽  
Resource Exploration ◽  
To Come ◽  
Paleoclimate Modelling

For more than half a century, microfossils–especially foraminifera–have been widely used as stratigraphic markers and paleoenvironmental indicators. Although increasing emphasis has been placed on their use in high-resolution paleoclimate studies, the time-scales involved in most microfossil-based stratigraphic investigations have remained relatively coarse (hundreds-of-thousands to millions of years). My intent herein is to try to come to grips with the interplay between time-averaging of benthic foraminiferal assemblages and stratigraphic resolution, and the implications for recognition of short-term physical and biological processes. These sorts of considerations deserve much closer scrutiny as the applied Earth sciences continue to move from a base of resource exploration and exploitation to one of paleoclimate modelling and ecosystem management (Martin, 1991; Corliss, 1993). The potential stratigraphic and paleoenvironmental resolution of foraminiferal assemblages is assessed using concepts derived from the age analysis of deep-sea assemblages.

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