Monitoring of the Microbiological Condition of Virgin Chernozem Under Different Management

Tonkha, Oksana; Pikovska, O.; Balaev, A.; Kovalyshyna, G.; Zavgorodniy, V.; Kovalenko, Vitalii

doi:10.3997/2214-4609.201903256

Cited by 5 publications

(2 citation statements)

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“…Important factors influencing these processes and plant productivity are the use of various fertiliser systems, treatments, land reclamation agents, etc. (Tonkha et al, 2019).…”

Section: Relevancementioning

confidence: 99%

Microbiological evaluation of meadow chernozem carbonate soil under various fertiliser systems

Motruk,

Tonkha,

Hryshchenko

et al. 2021

Rosl. g̀runtozn.

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Microorganisms play an important role in shaping soil fertility, maintaining its performance as a bio-inert matter, and are an indicator of qualitative changes in the soil. As a result of anthropogenic impact on the soil, the number and species composition of the microbiota is decreasing. The purpose of the study was to assess the number of different physiological groups of microorganisms on meadow chernozem carbonate soil under different pea fertilisation systems. The number of different groups of soil microorganisms was estimated according to the method of D. H. Zvyagintsev by sowing soil suspension on solid culture media. It was found that the most favourable indicators of micro biocenosis and the highest yield of peas of the Tsarevych variety were formed by the residual effect of organic fertilisers and N45P45K45. The variant without fertilisers induces the development of organic matter mineralisation processes in meadow chernozem carbonate soil by the content of pedotrophic and humate-decomposing organisms and formed the lowest pea yield. The introduction of only mineral fertilizers for pea cultivation formed a high rate of humus accumulation at the level of Kac.= 1,6-1,9

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“…Important factors influencing these processes and plant productivity are the use of various fertiliser systems, treatments, land reclamation agents, etc. (Tonkha et al, 2019).…”

Section: Relevancementioning

confidence: 99%

Microbiological evaluation of meadow chernozem carbonate soil under various fertiliser systems

Motruk,

Tonkha,

Hryshchenko

et al. 2021

Rosl. g̀runtozn.

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“…З огляду на проблеми збалансованого природокористування досі відсутня система біодіагностичних критеріїв біохімічних і мікробіологічних процесів, за якою проводилася б оцінка й моніторинг ґрунтових змін і явищ [15]. У наукових роботах українських вчених застосовуються різні критерії екологічного оцінювання агротехнологій [16][17][18]. Проте існує низка обмежень, які гальмують впровадження і використання показників біологічної активності ґрунтів.…”

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Enzymatic Activity of Typical Chornozem in Different Farming Systems Under the Conditions of the Dnipro Left Bank Forest-Steppe of Ukraine

Rieznik

2023

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Objective. To measure the enzymatic activity of typical chornozems in different farming systems for a better understanding of the features of soil formation processes in agrogenic soils. Methods. Comparative-profile-genetic, soil spring method, field, microbiological (measuring catalase, invertase, urease, dehydrogenase, protease, cellulase enzymatic activity), statistical. Results. During the study of typical chornozems during 2018–2020, the lowest activity of enzymes was recorded in the 0–10-centimeter soil layer of the humus horizon under an intensive farming system. Under the conditions of organic farming, an increase in the activity parameters of catalase, invertase, dehydrogenase, protease and urease was noted compared to the intensive system of farming. The use of green manure (spring vetch) contributed to a more significant increase in the activity of soil enzymes compared to the results obtained with the application of compost. On average, chornozem of the layland area is characterized by the highest activity of soil enzymes: catalase activity ranged from 4.4 to 5.6 cm3 O2 per 1 g of soil in 1 min, invertase activity — from 9.4 to 35.8 mg of glucose per 1 g of soil per day, ureases — from 10.5 to 14.6 mg of NH3 per 10 g of soil per day, dehydrogenases — from 4.7 to 12.4 mg of TPP per 10 g of soil per day, proteases — from 2.0 to 22.0 mg of glycine per 1 g of soil per day, cellulase — from 1.9 to 6.4 μg of glucose per 1 g of soil. Conclusion. Analysis of variance shows a significant influence of the farming system and the depth of sampling on the activity of soil enzymes. Agrogenic soils are characterized by lower activity of such enzymes as protease, invertase, cellulase and dehydrogenase compared to layland chornozem, however, the activity of urease and catalase increases significantly under the conditions of organic farming. Organic farming has a positive effect on the enzymatic activity of typical chornozems compared to the traditional (intensive) system.

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The Influence of Biological Preparations on the Microbiological Activity of Sod-Podzolic Soil for the Cultivation of Food Potatoes

KHOMENKO¹,

Tonkha²,

Pikovska³

et al. 2022

Rosl. g̀runtozn.

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In the present-day world, the demand for organic products is growing, but there is an insufficient number of studies on the impact of biological preparations on soil fertility parameters. Indicators of microbiological activity are not the same for different soil types, which is why it is necessary to investigate them in detail in specific soil and climatic conditions, especially on zonal soils, which are sod-podzolic soils in Polissia. Research on the impact of various biological preparations on soil fertility indicators for the cultivation of one of the most popular crops in Ukraine – food potatoes – is relevant. The purpose of this study was to establish the effect of treatment of potato tuber seeds with biological preparations and introduction of a biodestructor for better decomposition of siderate on the focus of microbiological processes in the soil. The study was carried out in an experiment at the Volyn State Agricultural Research Station of the Institute of Potato Growing of the National Academy of Agrarian Sciences of Ukraine. The soil of the experimental site was sod-medium-podzolic sandy soil on water-glacial deposits. The stationary experiment included variants with the addition of siderate to the soil without a destructor (Background 1) and with the addition of the Ecostern destructor to the siderate (Background 2). The effectiveness of the following biological preparations was also investigated: Mycohelp, Agat, Regoplant, Fitohelp, Stimpo. Soil analysis for microbiological indicators was carried out in samples taken from the 0-20 cm layer. The focus of microbiological processes in the soil was found by the corresponding coefficients. It was found that the oligotrophicity coefficient was less than one on the variants using the Ecostern biodestructor during the growing season of potatoes, which indicates a good supply of easily digestible organic substances to the soil microbiota, while on the variants without Ecostern during the ripening phase, the oligotrophicity coefficients exceeded one. The coefficient of pedotrophicity changed more during the growing season than according to the variants of the experiment. In the seedling and flowering phase of potatoes, mineralisationimmobilisation coefficients were low in all variants of the experiment, which indicates the predominance of synthesis of organic matter. The materials of this paper are of practical value for farmers and producers of organic crop production in the issue of plant residue management for the use of biodestructors in the technology of growing food potatoes

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Monitoring of the Microbiological Condition of Virgin Chernozem Under Different Management

Cited by 5 publications

References 0 publications

Microbiological evaluation of meadow chernozem carbonate soil under various fertiliser systems

Microbiological evaluation of meadow chernozem carbonate soil under various fertiliser systems

Enzymatic Activity of Typical Chornozem in Different Farming Systems Under the Conditions of the Dnipro Left Bank Forest-Steppe of Ukraine

The Influence of Biological Preparations on the Microbiological Activity of Sod-Podzolic Soil for the Cultivation of Food Potatoes

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