scholarly journals THE FEATURES THE AUTOTROPHIC AND HETEROTROPHIC NITRIFICATION IN THE ROOT ZONE OF WINTER RYE PLANTS UNDER THE USE OF MINERAL FERTILIZERS AND DIAZOBAKTERYN

2015 ◽  
Vol 21 ◽  
pp. 44-51
Author(s):  
I. G. Korotka ◽  
V. V. Volkogon
Keyword(s):  
Significant Role ◽  
Rhizosphere Soil ◽  
Root Zone ◽  
Heterotrophic Nitrification ◽  
Mineral Nitrogen ◽  
Mineral Fertilizers ◽  
Winter Rye ◽  
Early Stages ◽  
Biological Transformation ◽  
Microbial Preparation

The paper depicts the study of mineral nitrogen and pre-sowing seeds bacteryzation on the development of nitrogen fixing bacteria and the activity of autotrophic and heterotrophic nitrification. It was revealed that nitrification activity in the root zone of winter rye plants rises together with the increase of mineral nitrogen doses. Heterotrophic nitrification plays a significant role in the formation of nitrate pool in the root zone, especially during the early stages of plants organogenesis. Application of the microbial preparation Diazobakteryn had enhanced the activity autotrophic and heterotrophic nitrification processes in the rhizosphere soil of plants in the spring, during the early stages of their development while during the next organogenesis phases the reduction of nitrification processes was observed. In plants-free soil the contribution of heterotrophic nitrification to biological transformation of nitrogen was negligible.

scholarly journals NITRIFICATION IN THE ROOT ZONE OF WINTER RYE UNDER THE INFLUENCE OF MINERAL NITROGEN AND PRESOWING SEED BACTERIZATION

2013 ◽  
Vol 17 ◽  
pp. 79-88
Author(s):  
I. G. Chuchvaga ◽  
V. V. Volkogon
Keyword(s):  
Rhizosphere Soil ◽  
Root Zone ◽  
Heterotrophic Nitrification ◽  
Mineral Nitrogen ◽  
Winter Rye ◽  
Seed Bacterization ◽  
Nitrification Activity ◽  
Nitrification Process ◽  
Microbial Preparation

The paper studies the influence of mineral nitrogen and presowing seeds bakterization on the activity of autotrophic and heterotrophic nitrification in rhizosphere soil of winter rye plants. Increasing doses of mineral nitrogen enhance nitrification activity. Application of microbial preparation Diazobakteryn has a prolonged influence and improves nitrification process, mainly due to the increase of heterotrophic nitrification activity.

Orientation of processes of biological nitrogen transformation in winter rye agroecosystems under different levels of fertilization background

2016 ◽  
Vol 3 (3) ◽  
pp. 28-34
Author(s):  
V. Volkogon ◽  
I. Korotka
Keyword(s):  
Root Zone ◽  
Field Studies ◽  
Nitrogen Transformation ◽  
Mineral Nitrogen ◽  
Nitrogen Fertilizers ◽  
Winter Rye ◽  
Podzolic Soils ◽  
Microbial Preparation ◽  
Biological Nitrogen

Aim. To determine physiologically expedient rates of mineral nitrogen in winter rye production on sod-podzol- ic soils based on the orientation of the processes of biological nitrogen transformation in the plants rhizosphere. Methods. Field studies, gas chromatography determination of potential nitrogen fi xation activity and potential emissions of N 2 O. Results. The results obtained have demonstrated that the rates of mineral nitrogen, not ex- ceeding 60 kg/ha, can be considered physiologically expedient for winter rye production on sod-podzolic soils. Under the application of microbial preparation Diazobakteryn, there is a higher physiological need of plants for nitrogen, which allows increasing the rates of nitrogen fertilizers up to 90 kg/ha. Conclusions. The orienta- tion of the processes of biological nitrogen transformation in the root zone of plants is a reliable indicator of determining the appropriateness of nitrogen fertilization of crops.

scholarly journals QUANTITY OF PHOSPHOROUS MOBILIZING BACTERIA IN THE ROOT ZONE OF WHEAT UNDER THE INFLUENCE POLYMYXOBACTERYN AND FERTILIZERS

2013 ◽  
Vol 17 ◽  
pp. 101-110
Author(s):  
P. V. Kovpak ◽  
L. M. Tokmakova ◽  
I. V. Larchenko ◽  
A. O. Trepach
Keyword(s):  
Winter Wheat ◽  
Rhizosphere Soil ◽  
Root Zone ◽  
Mineral Fertilizers ◽  
Microbial Preparation ◽  
The Impact ◽  
Different Doses

The paper presents the results of studies of the impact of microbial preparation Polymyxobacteryn and different doses of mineral fertilizers on the development of phosphorous mobilizing bacteria in rhizosphere soil of winter wheat plants (Sonechko variety). It was shown that quantity phosphorous mobilizing bacteria increases under the influence of bacterization and fertilizers in doses not exceeding N60P60K60.

scholarly journals DENITRIFICATION PECULIARITIES IN AGROCOENOSIS UNDER THE INFLUENCE OF MINERAL FERTILIZERS AND MICROBIAL PREPARATIONS

2010 ◽  
Vol 10 ◽  
pp. 7-19
Author(s):  
V.V. Volkogon ◽  
S.B. Dimova ◽  
K.I. Volkogon ◽  
M.S. Komok ◽  
N.P. Shtan’ko
Keyword(s):  
Growth And Development ◽  
Root Zone ◽  
Spring Barley ◽  
Mineral Nitrogen ◽  
Mineral Fertilizers ◽  
Agricultural Crops ◽  
Substrate Use ◽  
Biological Denitrification ◽  
Denitrification Activity ◽  
Nitrite Respiration

The paper shows the results of studies of denitrification activityin root zone of spring barley, maize and potato under the use of mineralfertilizers and microbial preparations. It was established that applicationof optimal for the plants growth and development doses of fertilizershad restrained the biological denitrification activity due to the bothplants assimilation of mineral nitrogen and deprivation of rhizosphericmicroorganisms with nitrite respiration substrate. Use of physiologicallyungrounded doses of fertilizers especially when combining withmicrobial preparations had led to the significant loses of nitrogen dueto the denitrification. Thereby the application of microbial preparationsin agricultural crops growing technologies should be performed onoptimal agricultural backgrounds keeping biological denitrification atits lowest levels.

scholarly journals PECULIARITIES OF PHOSPHOROUS NUTRITION OF WINTER WHEAT UNDER THE INFLUENCE OF MINERAL FERTILIZERS AND BACTERIZATION

2012 ◽  
Vol 15 ◽  
pp. 40-48
Author(s):  
K.I. Volkogon
Keyword(s):  
Winter Wheat ◽  
Field Experiments ◽  
Rhizosphere Soil ◽  
Phosphorus Compounds ◽  
Mineral Fertilizers ◽  
Chernozem Soils ◽  
Labile Phosphorus ◽  
Microbial Preparation ◽  
Carry Over ◽  
Hydrolysis Of

The paper describes peculiarities of formation of microorganisms associations, capable of hydrolysis of hardly soluble phosphorus compounds as well as content dynamics of labile phosphorus in rhizosphere soil, winter wheat productivity and phosphorus carry-over with yield in field experiments without bacterization and at presowing seeds inoculation with microbial preparation Polymyxobacterin on meadow chernozem soils on different agricultural backgrounds. Microbial preparation was shown to be an active optimization element of phosphorus nutrition of winter wheat plants especially on mineral backgrounds.

scholarly journals FORMATION OF MICROBIAL ASSOCIATIONS IN RHIZOSPHERE OF WINTER RYE UNDER THE INFLUENCE OF MINERAL FERTILIZERS AND DIAZOBACTERIN

2012 ◽  
Vol 15 ◽  
pp. 101-112
Author(s):  
I.G. Chuchvaga ◽  
V.V. Volkogon ◽  
K.I. Volkogon
Keyword(s):  
Organic Nitrogen ◽  
Nitrogen Fertilizers ◽  
Mineral Fertilizers ◽  
Nitrogen Compounds ◽  
Winter Rye ◽  
Number Of Microorganisms ◽  
Microbial Associations ◽  
Denitrifying Microorganisms ◽  
Microbial Preparation ◽  
Podzol Soils

Influence of mineral fertilizers and inoculation with microbial preparation Diazobacterin on formation and functioning of microbial associations in rhizosphere of winter rye was studied on sod-podzol soils. It was shown that application of nitrogen fertilizers increase number of microorganisms that utilize mineral and organic nitrogen compounds. The mostpositiveimpactonthedevelopmentof diazotrophswasobserved in variants with doses that do not exceed 60 kg/ha. Application of high fertilizer doses results in intense growth of denitrifying microorganisms. InoculationwithDiazobacterinpromotesgrowthofagricultureimportant microorganisms.

Phosphate Nutrition and Yield of Winter Wheat Under the Influence of Fertilizers and Polimiksobakteryn

2015 ◽  
Vol 2 (2) ◽  
pp. 3-8
Author(s):  
V. Volkohon ◽  
L. Tokmakova ◽  
P. Kovpak ◽  
A. Trepach ◽  
O. Lepeha
Keyword(s):  
Winter Wheat ◽  
Phosphatase Activity ◽  
Phosphorus Content ◽  
Rhizosphere Soil ◽  
Black Soil ◽  
Phosphorus Nutrition ◽  
Mineral Fertilizers ◽  
Low Doses ◽  
Microbial Preparation ◽  
Different Doses

Aim. To study the features of phosphorus nutrition of winter wheat under the infl uence of different doses of mineral fertilizers and microbial preparation Polimiksobakteryn. Methods. The phosphatase activity in rhizo- sphere soil of winter wheat was determined photocolorimetrically by the method of Geller and Ginsburg, the phosphorus content in plants – as described by Denizhe in the modifi cation of Bouvatier. Results. The phos- phatase activity in the rhizosphere soil of winter wheat plants increases due to the application of a microbial preparation and mineral fertilizers in low doses. This increases both the absorption of phosphorus by plants and their yield. Conclusions. Growing winter wheat on the leached black soil with dose-relevant introduction of mineral fertilizers in doses, not exceeding N[60] P[60] K[60] , and the use of Polimiksobakteryn improve phosphorus nutrition of wheat plants and promote the increase in the yield of crops.

scholarly journals DEVELOPMENT OF BACTERIA OF NITROGEN CYCLE IN THE RHIZOSPHERE OF WINTER WHEAT PLANTS UNDER THE INFLUENCE OF DIFFERENT FERTILIZERS BACKGROUNDS AND PRE-SOWING SEEDS BACTERIZATION

2014 ◽  
Vol 18 ◽  
pp. 64-74
Author(s):  
P.V. Kovpak ◽  
E.I. Volkogon ◽  
M.A. Zhurba ◽  
N.P. Shtanko ◽  
І.V. Larchenko
Keyword(s):  
Winter Wheat ◽  
Functional Groups ◽  
Nitrogen Cycle ◽  
Root Zone ◽  
Mineral Fertilizers ◽  
Split Application ◽  
Microbial Associations ◽  
Microbial Preparation ◽  
Number Of Bacteria ◽  
Different Doses

The paper depicts the research results of development of bacteria of the nitrogen cycle in the root zone of winter wheat plants (variety Sonechko) under the use of microbial preparation Polymyxobacterin and different doses of mineral fertilizers. It was established that split application of fertilizers at doses that do not exceed N60P60K60 and pre-sowing seeds bacterization had optimized the composition of microbial associations in the root zone of plants. The increase of fertilizers doses was followed by the negative changes in the number of bacteria of different functional groups.

INFLUENCE OF CULTIVATION DEGREE OF SOD-PODZOLIC SOIL ON RESPONSIVENESS OF SOWING PEAS TO NITROGEN NUTRITION LEVEL

2020 ◽  
Keyword(s):  
Podzolic Soil ◽  
Nitrogen Nutrition ◽  
Maximum Yield ◽  
Mineral Nitrogen ◽  
Degree Of Saturation ◽  
Cultivated Soil ◽  
Combined Use ◽  
Dry Soil ◽  
Microbial Preparation ◽  
Harvest Maturity

The article presents the results of a vegetation experiment on studying an effect of increasing doses of nitrogen (factor С - N0; No.o5; No.io; N015; No.2o; N0,25 g/kg of absolutely dry soil) and pre-sowing inoculation of seeds with biological preparation "Risotorphine" (factor В - no inoculation; by inoculation) on the formation of vegetative mass and grain yield ofpeas at cultivating in the conditions of a poorly cultivated (factor A0) and of a medium cultivated (factor A f sod-podzolic soil. Cultivation degree of soil was expressed by such criteria as power of an arable horizon, value of metabolic acidity and content of mobile phosphorus, a degree of saturation of soil with bases. For experience tab there were used Mitscher-lich cups with a capacity of 5 kg of absolutely dry soil (a.d.s.), in 16 repetitions of options. The experiments were conducted in the conditions of vegetation site on the territory of University Scientific Centre "Lipogorie" of FSBEI Perm GATA, guided by a science-based methodology. When harvesting peas for a green mass more intensive development and productivity of plants (23.3 and 58.9, 40.0, 78.8 g/cup, respectively) in the phase of stem branching and budding a beginning offlowering that is recorded for its use on the background of inoculation, usage of mineral nitrogen in a dose of 0.10 g/kg on a poorly cultivated soil and 0.15 g/kg a.d.s. on a medium cultivated soil. Applying of higher doses of nitrogen has a depressing effect on development of assimilating surface of pea plants on a poorly and a medium cultivated soil. When raising pea plants before harvest maturity of grain: in the conditions of a poorly cultivated soil for yield at the level of 7.92 g/cup, the process of carrying on only an inoculation of seed with microbial preparation "Rizotorfin" can be considered; in the medium cultivated soil varieties, plant peas impose higher requirements for the level of mineral nutrition the maximum yield in the experiment (which 9.22 g/cup), noted at a combined use of inoculation and mineral nitrogen in a dose of 0.20 g/kg a.d.s.

The state of soil microbiotes during sunflower growing with an herbicide of imidazolinone group

Helia ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Natalia Kostyuchenko ◽  
Viktor Lyakh ◽  
Anatoliy Soroka
Keyword(s):  
Species Diversity ◽  
Rhizosphere Soil ◽  
Root Zone ◽  
General Trend ◽  
The State ◽  
Trophic Groups ◽  
Herbicide Application ◽  
Fold Reduction ◽  
Specific Species ◽  
Number Of Bacteria

Abstract The effects of various concentrations of herbicide Euro-Lightning Plus on the state of microbiota in the root zone of sunflower have been studied. Soil of plant rhizosphere and interrow soil after treatment with the herbicide at the doses of 1.2 and 2.5 l/ha were taken for the analysis at the end of sunflower growing season. Rhizosphere soil without herbicide application was used as a control. The herbicide was applied at the stage of 2–4 true leaves. The total number of bacteria in the rhizosphere of control plants was 12.82 million CFU/g of soil while in the rhizosphere and in the interrow soil after herbicide treatment with a dose of 2.5 l/ha it decreased by 1.4–1.5 times. A general trend of decline in number of the basic ecological and trophic groups of bacterial microorganisms with the increase in a dose of herbicide was established. Microbiological coefficients that reflect the functional activity of the microflora indicate changes in its biological activity under the influence of the herbicide Euro-Lightning Plus, which leads to deterioration in the agroecological state of the studied soils. It was also found that herbicide application resulted in a rearrangement of micromycete complexes in the root zone of sunflower which led to a two-fold reduction, compared to the control, of mycobiota species diversity and the formation of a specific species composition of mycocenoses. A greater genus and species diversity of fungi of the microflora in the rhizosphere of control plants, in comparison with the herbicide-treated soil, was revealed. A reduction in species diversity of the genus Penicillium from six species in the control to 1–2 species in the rhizosphere of experimental sunflower plants as well as the absence of rare saprophytic fungi species from the genera Acremonium, Verticillium, Trichoderma and Paecilomyces were noted.

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