Organic Matter and Physical Properties of Postagrogenic Eroded Soddy-Podzolic Soil and Arable Soddy-Podzolic Soil

Borisov, B.; Efimov, Oleg; Eliseeva, O. V.

doi:10.1134/s1064229322070031

Cited by 6 publications

(6 citation statements)

References 28 publications

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“…Indicators of the intensity of processes of mineralization of nitrogen compounds, soil organic matter, humus, probability of bacterial colony formation (PCF) were calculated as described earlier (Malynovska et al, 2023). For a general assessment of the biological state of the soil, the indicator of total biological activity (TBA) was calculated using the method of relative values (Rusakova, 2013). The content of humus in the soil was determined according to (DSTU 4289:2004).…”

Section: Methodsmentioning

confidence: 99%

The influence of agrotechnical measures on the number of melanin-synthesizing microorganisms

Malynovska,

Kaminskyi,

Zadubynna

et al. 2023

Scientific Horizons

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In connection with the growing scale of soil dehumification, studies of the patterns of synthesis of the precursors of humus molecules – melanins of bacterial origin – are becoming increasingly relevant. The purpose of this study was to establish the influence of the main factors of agricultural production on the spread of melaninsynthesizing microorganisms: the method of basic soil cultivation, mineral fertilizers, and the type of agricultural crop. Research methods: microbiological, laboratory-analytical, statistical, correlational. As a result, the study found for the first time that the main cultivation of the soil affects the number of melaninsynthesizing microorganisms: micromycetes, bacteria, аzotobacter. In the variant without the application of mineral fertilizers (control), the soil was characterized by the minimum amount of melanin-synthesizing bacteria using the No-till technology, 28.8% more – using disking, and 2.4 times more – using ploughing. The number of melaninsynthesizing micromycetes in the variant without fertilizers was also maximum upon ploughing, the average number was observed with No-till technologies, and the minimum number – using shallow disk tillage. Application of mineral fertilizers in a dose of N30P30K65 leads to an increase in the number of melanin-synthesizing bacteria in the ploughing option by 3.58 times, disking by 3.53 times, No-till technology by 2.28 times. An increase in the dose of mineral fertilizers to N150P100K120 contributes to an increase in the number of melanin-synthesizing bacteria by 5.04 times upon ploughing, 5.78 times upon disking, and 2.24 times upon no-till technologies. The medium-significant nature of the relationship between the content of humus and the number of melanin-synthesizing bacteria (r=0.528) and their share in the total number of microorganisms (r=0.470) suggested that in chernozem inherent in growing sunflowers, humus is formed mainly with the participation melanins of bacterial origin. Metabolites of polysaccharide-synthesizing bacteria take part in the formation of the resistance of humus molecules to microbial mineralization, the probability of the formation of colonies of which has a moderately significant relationship with the content of humus (r=0.532). The results of these studies can be used in the development of recommendations for regulating the content of humus in agricultural soils, preventing its excessive mineralization, which will allow preserving and increasing soil fertility

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Section: Methodsmentioning

confidence: 99%

The influence of agrotechnical measures on the number of melanin-synthesizing microorganisms

Malynovska,

Kaminskyi,

Zadubynna

et al. 2023

Scientific Horizons

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Section: Methodsmentioning

confidence: 99%

Untitled

2023

Scientific Horizons

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Свідоцтво про державну реєстрацію друкованого засобу масової інформації серії КВ № 24997-14937 ПР Науковий журнал включено до категорії А Переліку наукових фахових видань України, у яких можуть публікуватися результати дисертаційних робіт на здобуття наукових ступенів доктора та кандидата ветеринарних, економічних, сільськогосподарських і технічних наук зі спеціальностей: 051 -Економіка; 071 -Облік і оподаткування; 072 -Фінанси, банківська справа та страхування; 073 -Менеджмент; 075 -Маркетинг;

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“…The positive correlation of Gm and TP with K and Mg highlights crucial aspects in soil dynamics, as under adequate moisture conditions, these nutrients mobilize in the soil and are incorporated into the pro le through pores, becoming accessible for root absorption by plants. In this regard, attention is drawn to soil decompaction before liming, as it assists in the process of water in ltration and percolation, reducing surface runoff and consequently, the transport of particles and nutrients in erosive processes (Borisov et al, 2022), which can contaminate downstream water bodies (Zhu et al, 2020).…”

Section: Soil Physical Attributesmentioning

confidence: 99%

Physical and chemical soil quality and litter stock in agroforestry systems in the Eastern Amazon

de Souza,

Santos,

Martins

et al. 2024

Preprint

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The influence of biodiversity and age of agroforestry systems (AFS) on the provision of ecosystem services, such as nutrient cycling, needs to be better understood to support management practices that promote such services. This study aimed to quantify and compare litter stock and the physical and chemical attributes of soil in four AFSs with different ages and arrangements to a secondary forest (FLO) in the Eastern Amazon. Litter stock did not differ among the AFSs, but the youngest AFS was lower (5.73 ± 1.04 Mg ha− 1) than in FLO (11.42 ± 2.44 Mg ha− 1). Similarities were found between FLO and the oldest AFS for most of the soil chemical attributes. The soil pH in AFSs was higher than in FLO in the surface layer, and the organic matter content of FLO did not differ from 2 and 51-year-old AFSs. The Al content and aluminum saturation of younger and 26 years-old AFSs were lower than in FLO. Particle density and total porosity did not differ among ecosystems, while soil density in the two younger AFSs was higher than in FLO. According to PCA results, variables such as organic matter, CECpH7, H + Al, Al content, and m % tended to be higher in FLO and oldest AFS. It was evident that the maturity and diversity of AFSs are relevant factors for Amazonian agroforests, as they offer positive impacts on ecosystem functionality, such as nutrient cycling and water retention.

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Organic Matter and Physical Properties of Postagrogenic Eroded Soddy-Podzolic Soil and Arable Soddy-Podzolic Soil

Cited by 6 publications

References 28 publications

The influence of agrotechnical measures on the number of melanin-synthesizing microorganisms

The influence of agrotechnical measures on the number of melanin-synthesizing microorganisms

Untitled

Physical and chemical soil quality and litter stock in agroforestry systems in the Eastern Amazon

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