Dynamics of the Humus Content under Different Chernozem Treatment Conditions

Bulgakov, Volodymyr; Gadzalo, Iaroslav; Аdаmchuk, Valerii; Demydenko, Olexander; Velichko, V. O.; Nowak, Janusz; Ivanovs, Semjons

doi:10.12911/22998993/147862

Cited by 5 publications

(6 citation statements)

References 14 publications

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“…It is generally evident from the model outcomes that a slight increase in humus content is desirable for water retention, but only to a certain degree. According to agronomic principles, humus content in soil is a crucial factor impacting agricultural crop yields [49]. However, after a certain level of saturation, any further increase is contraindicated for water retention.…”

Section: Resultsmentioning

confidence: 99%

Land Valuation Systems in Relation to Water Retention

Slaboch,

Malý

2023

Agronomy

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This article uses a derived econometric model to estimate the impact of the physical properties of soil on its retention capacity and, subsequently, the impact of retention capacity on production potential. This is an important aspect considering climate change impacts, which are affecting food production across the world. An investigation of academic publications shows that very few studies address opportunities to price rainwater in relation to agricultural production. As such, the objective of the submitted article is to use soil physical property spatial data to create an econometric model. The econometric model itself determines the intensity and direction of action of the soil’s physical properties on the ability of the soil to hold rainwater. The results demonstrate the positive effect of physical properties such as porosity and humus content. Important information for farming practice is the relatively pronounced influence of soil acidity (pH) on its retention capacity, which is mainly the result of its effect on soil biogeochemical processes. The most significant variable in terms of the extent of action is the depth of the soil profile, which is in line with general assumptions. The actual evaluation of soil retention capacity was undertaken using an option with the use of a sensitivity analysis. In order to include the non-production function of the soil (retention capacity), we conclude for individual enhanced quality soil ecological units an increased price of 1–12%. These conclusions are particularly valuable because some soils may have a low production potential while also being highly valuable for their particular location in terms of their non-production potential (typically desirable floodwater retention, etc.). Considering climate change, this is a particularly topical issue. The use of enhanced-quality soil ecological units is reflected in a wide range of fields through legislative processes—determining rural land protection class and, especially in the tax obligations of agricultural entities, farming agricultural land.

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Section: Resultsmentioning

confidence: 99%

Land Valuation Systems in Relation to Water Retention

Slaboch,

Malý

2023

Agronomy

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“…Statistical assessment of the data obtained for the reliability and error of the experiments was determined according to the generally accepted methodology (Petersen, 1994; Welham et al, 2015;Bulgakov et al, 2022).…”

Section: Methodsmentioning

confidence: 99%

Study of Microbiological Processes in the Soil of a Two-Year’s Fallow

Ivanovs¹,

Malynovska²,

Tkachenko³

et al. 2023

J. Ecol. Eng.

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A high degree of ploughing the soils is a destabilization factor of agrolandscapes and intensification of the erosion processes. Therefore, there arises a need to study the direction of the soil processes during the transfer of the arable land into a state of fallow. The state of microbiocenosis of a two-year-old abandoned land (fallow) was investigated using the gray forest soil in the variants of spontaneous overgrowth, sowing of grass mixtures and sowing of grass mixtures with simultaneous optimization of mineral nutrition of the phytocenosis as an example. It has been established that the least stable microbiocenosis is formed during the cultivation of the grass mixtures, which is characterized by the minimum total number of microorganisms (647.1 million CFU•g -1 of absolutely dry soil) and the minimum number of significant relations between the constituents (components) of the microbial community (98). The total number of microorganisms in the microbiocenosis of the spontaneous overgrowth variant and the legume-grass mixture exceeds that of the cereal grass mixture variant by 6.29 and 34.8%, respectively. A similar indicator for the total number of significant relations was 4.08%. Application of mineral fertilizers intensifies the process of mineralization of nitrogen compounds and slows down the consumption of the soil organic matter in the variants of sudden recovery of phytocenosis and cultivation of the legume-cereal grass mixture. The soil of the variant of the grass mixture is characterized by minimum total biological activity; it is 1.33 and 33.2% lesser than the total biological activity of the variants of spontaneous overgrowth and cultivation of the legume-grass mixture.

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“…The field investigations were carried out according to generally accepted methods of conducting agrotechnical experiments (Skrypchuk et al, 2020;Wojciechowski et al, 2020). The research results were processed by methods of the correlation-regression analysis to identify the closest relationships between the corn yield, the average monthly air temperature and the monthly precipitations, followed by the construction of mathematical models of the relationship between these indicators (Welham, 2015;Bulgakov et al, 2022).…”

Section: Methodsmentioning

confidence: 99%

Impact of Global and Regional Climate Changes upon the Crop Yields

Kaminskiy¹,

Asanishvili²,

Bulgakov³

et al. 2023

J. Ecol. Eng.

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The negative impact of global and regional climate changes upon the crop yields leads to the violation of the crop production stability. The development of reliable methods for assessment of the climatic factors by the reaction of the crops to them in order to minimize the impact of climatic stresses upon the sustainability of food systems is an urgent scientific task. This problem was studied on the example of growing corn. A mathematical analysis of the main meteorological indicators for 16 years of research has been performed on the basis of which the frequency and direction of the occurrence of atypical and extreme weather conditions in various periods of the corn vegetation season were established by the coefficient of significance of deviations of the weather elements from the average long-term norm. It has been proved that the probability of occurrence of such weather conditions in the period from April to September is 38-81% in terms of the average temperature of the month, and 31-69% in terms of precipitation. By using the information base of the corn yields in a stationary field experiment with the gradations of factors: A (the fertilizer option) -A1-A12, B (the crop care method) -B1-B3, C (the hybrid) -C1-C7, the most critical month of the corn ontogeny was established when the weather has a decisive influence upon the formation of the crop. With the help of the correlation-regression analysis it was proved that the corn yield most significantly depends on the average monthly temperature in June, and for the hybrids with FАО 200-299 -on the amount of precipitation in the month of May. The obtained mathematical models make it possible to predict the yield of corn at a high level of reliability depending on the indicators of the main climate-forming factors in June, that is, even before the flowering of the plants (before the stage of ВВСН 61).

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Dynamics of the Humus Content under Different Chernozem Treatment Conditions

Cited by 5 publications

References 14 publications

Land Valuation Systems in Relation to Water Retention

Land Valuation Systems in Relation to Water Retention

Study of Microbiological Processes in the Soil of a Two-Year’s Fallow

Impact of Global and Regional Climate Changes upon the Crop Yields

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