Water-physical properties of artificial soils of layered composition, used in dumps recultivation of mining and oil industry

Demin, E A; Skipin, Leonid; Eremin, Dmitry

doi:10.1088/1755-1315/194/9/092005

Cited by 4 publications

(3 citation statements)

References 12 publications

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“…The intensity of the use of lands involved in agricultural use leads to a decrease in the organic soil matter reserves [20]. This leads to deterioration of the water regime, erosion resistance of the soil, and decrease in nutrients [21,22]. Increasing and stabilizing carbon stocks in soils is an important task in the conditions of modern carbon-saving agriculture [23].…”

Section: Resultsmentioning

confidence: 99%

Intake and fixation of organic carbon in grain agrophytocenosis of Western Siberia

Demin¹

2022

IOP Conf. Ser.: Earth Environ. Sci.

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In nature, carbon plays an important role in the circulation of organic matter in the soil-plant-atmosphere system. To understand the full picture of the farming system impact on carbon dioxide emissions, long-term stationary experiments are needed, which will reduce the influence of weather conditions on changes in organic carbon stocks in soils and develop an optimal model of the crop cultivation system considering the positive balance of organic carbon in soils. The research was carried out from 1995 to 2020 in the grain crop rotation at the station of the Department of Soil Science and Agrochemistry of the SAU of the Northern Trans-Urals, near vil. Utyashevo in the Tyumen region. Purpose. The purpose of the research was to establish the effect of increasing doses of mineral fertilizers on the intake and fixation of organic carbon with plant residues in the grain agrophytocenosis in the conditions of the forest-steppe zone of the Trans-Urals. The refusal to use mineral fertilizers leads to annual losses of organic carbon in the form of CO2 up to 0.6 t/ha. The use of high doses of mineral fertilizers for the planned yield of 5.0 and 6.0 t/ha of grain annually increases the emission of CO2 by 0.4-0.6 t/ha per year. In these variants, the carbon received from plant residues is not fixed in the soil. A positive balance of organic carbon is provided only by the use of doses of mineral fertilizers for the planned yield of 3.0 and 4.0 t/ha of grain, which annually increases the carbon stock in the soil by 0.4-0.6 t/ha, and up to 14-21% is fixed from the incoming organic carbon in the form of plant residues in the soil.

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Section: Resultsmentioning

confidence: 99%

Intake and fixation of organic carbon in grain agrophytocenosis of Western Siberia

Demin¹

2022

IOP Conf. Ser.: Earth Environ. Sci.

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“…It is synthesized annually in the soil, but at the same time it is actively mineralized to inorganic compounds. In natural biocenoses, the humus dynamics is stable and is determined by external factors, which include water, salt, and temperature regimes [1,2,3]. The organic matter formed during photosynthesis in biocenoses eventually enters the soil and is processed by microorganisms [4,5].…”

Section: Introductionmentioning

confidence: 99%

Balance model of humus state of arable chernozems of the Western Siberia

Demin

Eremina

2022

IOP Conf. Ser.: Earth Environ. Sci.

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The results of model simulation of the humus state of arable soils in the Western Siberia based on long-term stationary studies and agrochemical monitoring of agricultural lands are presented. The following were studied: leached chernozem; podzolized chernozem; meadow-chernozem and dark gray forest soils. It was found that the nature of the root system formation depends on the biological characteristics of crops and cultivation conditions (the level of mineral nutrition, moisture). The mass of crop-root residues, as well as straw, is in close correlation with the yield of grain crops. Based on the actual data, regression equations were obtained with a high degree of reliability of the calculated data (approximation coefficient from R2= 0.84 to R2 = 0.93). Using the balance model of humus formation, it was found that the podzolized chernozem and dark gray forest soil were the least resistant to the anthropogenic factor. As a result of prolonged agricultural activity (52 years), humus losses in them amounted to 28 and 37 t/ha, which corresponded to annual losses of 0.54 and 0.71 t/ha. Leached arable chernozems lost 24 t/ha of humus, which corresponded to annual losses of 0.46 t/ha. In the course of the study, it was revealed that the arable land of the Western Siberia has a stable negative balance of humus state, which requires optimization of the farming system in the region.

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“…Exactly for this reason the agriculture on an industrial scale in Siberia began to develop relatively recently. The lack of adapted varieties, animal breeds, imperfect system of fertilizers and plant protection caused low yields that could only meet local needs [3,4,5]. Nevertheless, in the XX century, with the development of agricultural science, new varieties of grain crops were created, elements of plant cultivation technology were studied and developed, considering the soil and BIO Web of Conferences 36, 03009 (2021) https://doi.org/10.1051/bioconf/20213603009 FSRAABA 2021 climatic conditions of the region [6,7,8].…”

Section: Introductionmentioning

confidence: 99%

The influence of farming system elements on the yield of barley in the forest-steppe zone of the Trans-Urals

Feoktistova

Eremina

2021

BIO Web Conf.

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The results of long-term stationary studies on the influence of farming system elements on the yield of spring barley in the forest-steppe zone of the Trans-Urals are presented. In the experiment, the role of the precursor; the main tillage (plowing and surface scarification); three levels of mineral nutrition were studied. The variation of the barley harvest for 2004-2014 under the influence of weather conditions that have direct and indirect impact on the formation of the yield of cereals is shown. The yield of barley primarily depends on the level of mineral nutrition. The average yield of barley sown after peas was 3.52 t/ha, with a variation in the range of 2.40-4.24 t/ha. In the variant where the precursor was oat, the yield of barley was 3.39 t/ha with a variation from 2.11 to 4.72 t/ha. The share of the contribution of the growing season weather conditions is 49% (the precursor is peas) and 72% (the precursor is oat). The minimum yield over the years of research was 1.44 t/ha on the variant where the precursor was oat, fertilizers were not applied, and the main tillage was surface scarification. The maximum yield was 5.57 t/ha on the variant with a dose of fertilizers N54P52K52 kg/ha, which were introduced by plowing.

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Water-physical properties of artificial soils of layered composition, used in dumps recultivation of mining and oil industry

Cited by 4 publications

References 12 publications

Intake and fixation of organic carbon in grain agrophytocenosis of Western Siberia

Intake and fixation of organic carbon in grain agrophytocenosis of Western Siberia

Balance model of humus state of arable chernozems of the Western Siberia

The influence of farming system elements on the yield of barley in the forest-steppe zone of the Trans-Urals

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