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Journal articles on the topic 'Labile humus'

Author: Grafiati

Published: 3 June 2025

Last updated: 1 August 2025

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1

Kozlova, Alla, Natalya Martynova, Dmitry Perfiliev, and Ulyana Ludwig. "Chemodestructive fractionation of humus as an indicator of the functional state of soil organic matter." E3S Web of Conferences 371 (2023): 06010. http://dx.doi.org/10.1051/e3sconf/202337106010.

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The content, composition, and properties of humus are the most important characteristics that reflect the features of modern soil formation, the genesis and evolution of soils, and their agrogenic transformation. The main criteria for assessing soil fertility are traditionally the content and reserves of organic matter in soils. At the same time, the decrease in soil fertility is associated not so much with a decrease in the total content of humus, but with the loss of its labile forms, which determine the life of the soil, its most important agronomic properties and crop yields. One of the in

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2

STASIV, OLEH, OKSANA KACHMAR, OKSANA VAVRYNOVYCH, and OLEKSANDR DUBYTSKYI. "Effect of Fertiliser on Changes in Labile and Water-Soluble Forms of Humus in Short-Term Rotations." Scientific Horizons 25, no. 4 (2022): 9–17. http://dx.doi.org/10.48077/scihor.25(4).2022.9-17.

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Mobile (labile and water-soluble) forms of humus are one of the basic components of effective soil fertility and a precondition for high productivity of crop rotations. As a result of fermentation, these forms of humus are mineralised and take part in plant nutrition, and some of them, being included in mobilisation processes, transition into stable humus substances. Therefore, it is important to investigate agrotechnological factors for managing their dynamics and redistribution in the soil environment during the growing season of agricultural crops. The purpose of the study: to investigate t

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3

Novoselov, Sergey. "Influence of Photochemical Reactions on the Content and Transformation of Mineral Nitrogen in Sod-Podzol Soil." Key Engineering Materials 781 (September 2018): 195–99. http://dx.doi.org/10.4028/www.scientific.net/kem.781.195.

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The article discusses the photochemical effects of sunlight on the soil. Under the influence of light energy the amount of mineral and easy hydrolysable nitrogen, as well as labile humus substances increased in the soil. The photochemical destruction of humus substances was accompanied by an increase in their mobility and loss of colour. The article shows that the process of mineral nitrogen formation in the soil during the photochemical destruction of humus substances has two stages. The first stage includes photochemical reactions with the formation of ammonium nitrogen. The second stage is

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4

Duo, Xinqu, Jinggui Wu, and Wei Cheng. "Effects of Long-Term Land Use Patterns on Labile Organic Carbon Fractions and Carbon Pool Management Index of Mollisols Humus Layers." Applied Sciences 15, no. 3 (2025): 1006. https://doi.org/10.3390/app15031006.

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Land use patterns significantly influence the quantity and composition of litter in the soil humus layers, thereby affecting the dynamics of soil organic carbon. However, the differences in labile organic carbon fractions and the carbon sequestration index under different land use patterns, as well as their impact on soil carbon storage in the humus layers of mollisols—without migration loss and soil erosion—remain unclear. Labile organic carbon is classified into fractions such as dissolved organic carbon, easily oxidized carbon, particulate organic carbon, and microbial biomass carbon, which

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5

Yumashev, Haris, and Irina Zaharova. "The effect of straw on the humus state of chernozem." Agrarian Bulletin of the 229, no. 14 (2023): 92–98. http://dx.doi.org/10.32417/1997-4868-2022-229-14-92-98.

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Abstract. The purpose of the research is to present the results of studies obtained in the long-term stationary experience of the Geographical Network of Experiments with Fertilizers of the Russian Federation on the effect of various methods of straw, crop residues and nitrogen fertilizers utilization on the humus state of leached black soil. Establish the effect of the systematic introduction of straw and crop residues on the content of total and labile humus in leached black soil, provide data on the fractional composition of humus. Methods. There were used conventional methods: total nitrog

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6

Zhao, Zhanhui, Congzhi Zhang, Hongye Wang, et al. "The Effects of Natural Humus Material Amendment on Soil Organic Matter and Integrated Fertility in the Black Soil of Northeast China: Preliminary Results." Agronomy 13, no. 3 (2023): 794. http://dx.doi.org/10.3390/agronomy13030794.

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The input of exogenous organic materials is an effective way to improve soil organic matter (SOM) content in cropland. The exploration of the impact of new organic materials such as woody peat on black soil fertility can provide an important reference for preventing the degradation of black soil in Northeast China. In this study, the effects of adding woody peat to SOM and the soil-integrated fertility of black cropland were studied by seven treatments (no organic matter addition, CK; crop straw returning, SR; decomposed straw addition, DS; organic manure addition, OM; 6 t/ha woody peat additi

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7

Drichko, V. F., L. G. Bakina, and N. E. Orlova. "Stable and labile components of humus in soddy-podzolic soils." Eurasian Soil Science 46, no. 1 (2013): 37–43. http://dx.doi.org/10.1134/s1064229312110038.

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8

MOURA, JULIANA AUGUSTA, MARIA ISIDÓRIA SILVA GONZAGA, THIAGO LIMA DA SILVA, DANIELLE VIEIRA GUIMARAES, and ISAAC LEAL DE SANTANA. "ORGANIC MATTER AND CARBON MANAGEMENT INDEX OF SOIL TREATED WITH COMPOSTED AND NON-COMPOSTED LAYERED RESIDUES." Revista Caatinga 30, no. 1 (2017): 78–86. http://dx.doi.org/10.1590/1983-21252017v30n109rc.

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ABSTRACT The use of organic residues and compost is a common practice to improve soil quality and content of organic matter. In this study, the labile and stable fractions of soil organic matter were evaluated after application of layers of fresh (non-composted) or composted organic residues in a 6-year-old citrus orchard. The experiment was set up as a randomized block design, with 6 treatments: control without NPK, control with NPK, non-composted organic residue (NCOR, with and without NPK), and composted organic residue (humus, with and without NPK), with three replicates. The treatments we

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9

Lopushniak, V., and G. Hrytsulyak. "Impact of sewage sludge application on the humus state of sod-podzolic soil of subcarpathia under energetic willow plantation." Agricultural Science and Practice 3, no. 2 (2016): 26–31. http://dx.doi.org/10.15407/agrisp3.02.026.

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Aim. To determine the impact of energetic willow fertilization with sewage sludge (SS) and manure on the change in the humus state of sod-podzolic soil of Subcarpathia under energetic willow plantation. Methods. Soil samples were collected on the experimental fi eld of Ivano-Frankivsk College of LNAU. The humus con- tent was determined according to DSTU 4289:2004; that of its labile forms – according to DSTU 4732:2007, the content of organic matter in SS and manure – according to GOST 27980-88. Results. The application of sewage sludge for energetic willow grown in sod-podzolic soil of Subcarp

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10

Borodina, Kira S. "Content of humus and labile organic matter in leached chernozem of the Plavsky District of the Tula Region under different land use patterns." Izvestiâ Timirâzevskoj selʹskohozâjstvennoj akademii, no. 2 (2025): 20–31. https://doi.org/10.26897/0021-342x-2025-2-20-31.

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The state program for the effective involvement of agricultural lands in the turnover and development of the reclamation complex of the Russian Federation has contributed to the active return of fallow lands to arable land, which in turn opens up new opportunities for studying changes in soil properties in such conditions. The article examines the issue of changes in the content of humus and labile organic matter of leached chernozem (Luvic Chernic Phaeozems) of the forest-steppe zone in the conditions of the Tula Region upon return to arable land from the fallow state. Four plots with differe

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11

Tashkuziev, Maruf, and Nilufar Shadieva. "Conditions and factors of humus formation in soils of mountain and foothill." E3S Web of Conferences 284 (2021): 02008. http://dx.doi.org/10.1051/e3sconf/202128402008.

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On the basis of information on the climatic factor, the intensity of humus formation in the soil was estimated. It was revealed that as the transition from the plain to the foothills and low mountains due to changes in atmospheric precipitation and hydrothermal regime, the period of biological activity (PBA) of the soil increases from the plain to the mountains. The balance of annual radiation in the foothill plain is 47 kcal/cm2, in the high-mountain belt - 53 kcal/cm2. As the transition from the plain to the mountainous part of the relief, an increase in soil PBA was revealed and, in accorda

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12

Tobiašová, E., G. Barančíková, E. Gömöryová, B. Dębska, and M. Banach-Szott. "Humus substances and soil aggregates in the soils with different texture." Soil and Water Research 13, No. 1 (2018): 44–50. http://dx.doi.org/10.17221/31/2017-swr.

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Humus substances (HS) influence the incorporation of carbon into soil aggregates in many ways. In this study the influence of HS and their fractions in the soil on the proportions of carbon (total organic, labile, non-labile) in water-resistant macro-aggregates (WSA) and differences between the amount of carbon in WSA in coarse-grained (CGS) and fine-grained (FGS) soils with dependence on the proportions of HS in the soil were determined. The experiment included three soils (Haplic Chernozem, Haplic Luvisol, Eutric Cambisol), each of them with two different soil textures (CGS, FGS) from four e

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13

Kolář, L., S. Kužel, J. Horáček, V. Čechová, J. Borová-Batt, and J. Peterka. "Labile fractions of soil organic matter, their quantity and quality." Plant, Soil and Environment 55, No. 6 (2009): 245–51. http://dx.doi.org/10.17221/87/2009-pse.

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The objective of the present paper is to contribute to the evaluation of quantity and quality of non-humified part of soil organic matter (SOM). In samples of soil organic matter from the humus profile of Šumava forest soils and forest meadows, taxonomically designated as mor and moder forms, the fractions of labile soil carbon C<sub>cws</sub>, C<sub>hws</sub>, C<sub>PM</sub> and fraction of stable carbon represented by carbon of humus acids C<sub>HA</sub> and C<sub>FA</sub> were determined. Organic matter of samples was fractionated

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14

Pospíšilová, Ľ., N. Fasurová, and V. Petrášová. " Humus content and quality under different soil tillage systems." Soil and Water Research 5, No. 3 (2010): 90–95. http://dx.doi.org/10.17221/20/2009-swr.

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The main objective of our study was to compare the contents and quality of humic substances in selected soil types under different tillage regimes (deep, reduced, minimum). Non destructive spectroscopic methods such as UV-VIS and synchronous fluorescence spectroscopy were applied. After three years of experiments, no statistically significant differences in the total carbon content, labile carbon content, and humic substances carbon content were found. Humic substances quality and the absorbance in UV-VIS spectral range was the highest in Haplic Chernozem (minimum tillage). Fluorescence intens

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15

Gromovik, Arkady I., Nadezhda S. Gorbunova, and Tatyana A. Devyatova. "Sorption of labile humus substances by structural-aggregate fractions of eroded chernozems." Сорбционные и хроматографические процессы 23, no. 5 (2023): 948–57. http://dx.doi.org/10.17308/sorpchrom.2023.23/11729.

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Erosion processes are the main cause of degradation of chernozems, which occurs mainly as a result of the loss of soil organic matter and deterioration of the structural and aggregate state. The main part of organic carbon (Corg.) is concentrated in macroaggregates, therefore the destruction of macroaggregate fractions is the main cause of loss of Corg. during the development of erosion processes. The ability of soils to maintain a water-resistant structure is due to the sorption of humus substances, which have amphiphilic properties in them. To the greatest extent, such properties are possess

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16

MAMONTOV, V. G., and E. L. SOKOLOVSKAYA. "ELEMENTAL AND MOLECULAR MASS COMPOSITION OF LABILE HUMUS SUBSTANCES OF ORDINARY CHERNOZEM." Izvestiâ Timirâzevskoj selʹskohozâjstvennoj akademii, no. 1 (2018): 130–38. http://dx.doi.org/10.26897/0021-342x-2018-1-130-138.

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17

Osipov, Alexander, Valery Slyusarev, Tatiana Shvets, and Anton Gritsenko. "Assessment of the humus state of hortically suitable soils Northwest Caucasus." E3S Web of Conferences 539 (2024): 02019. http://dx.doi.org/10.1051/e3sconf/202453902019.

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The laying of intensive industrial gardens in Russia is carried out according to special projects, which are based on complex works that begin the selection and assessment of the soil suitability of land plots. The levels of total humus and its labile forms have been established for the main horticultural soils of the Krasnodar Territory on the basis of long-term studies. The use of these criteria makes it possible to assess the degree of cultivation or degradation processes of the soil cover of each specific garden plot. Studies have shown that, in all surveyed soils of the region, the profil

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18

Popovych, Vasyl, Kateryna Stepova, Andriy Voloshchyshyn, and Pavlo Bosak. "Physico-Chemical Properties of Soils in Lviv Volyn Coal Basin Area." E3S Web of Conferences 105 (2019): 02002. http://dx.doi.org/10.1051/e3sconf/201910502002.

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The results of the research showed that hydromorphous soils prevail on the territories adjoined to waste heaps. Swampy meadow and sod soils were defined. During investigation of swampy meadow soils it was determined that the soil is humused at a considerable depth. The soils are saturated with the bases. According to granulometric texture it is sandy loam soils, but with depth go to the middle loamy soils. The analysis for labile forms of heavy metals showed that in these soils the content of investigated heavy metals does not exceed the maximum allowable concentrations, except for lead. The a

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19

Osipova, Regina A., Minnegali Yu Gilyazov, Svetlana Zh Kuzhamberdieva, and Bahytbek B. Abzhalelov. "Impact of oil contamination of grey forest soil on its nutrient status and plant safety." BIO Web of Conferences 27 (2020): 00046. http://dx.doi.org/10.1051/bioconf/20202700046.

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The study was carried out in the Republic of Tatarstan (Volga Federal District of the Russian Federation) in grey forest middle loamy soil with weak acid reaction of the medium, low humus content, increased content of labile forms of phosphorus and potassium. The soil was deliberately contaminated with oil at a dose of 25 l/m2. There is close positive linear relationship (R2=0.845) between the amount of bens(a)pyrene (BP) and petroleum substances in soil. The BP content in oil-contaminated horizons (0–15, 15–30, 30–45 cm) of soil exceeded the maximum allowable concentration by 10.5–19.5 times

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20

Lopushniak, V. "Fertilization System as a Factor of Transforming the Humus State of the Soil." Agricultural Science and Practice 2, no. 2 (2015): 39–44. http://dx.doi.org/10.15407/agrisp2.02.039.

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Aim. To establish the effect of different fertilization systems in short fi eld crop rotation on the change in the state of humus in the dark gray podzolic soils in Western Forest-Steppe of Ukraine. Methods. Field studies were carried out in a stationary experiment of the Department of Soil Science and Agricultural Chemistry of the L’viv National Agrarian University; determination of humus content – according to DSTU 4289:2004, and that of its labile forms – in accordance with DSTU 4732:2007, fraction-group composition – by Ponomare- va-Plotnikova’s method, according to the measurement procedu

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21

SAMUTENKO, L. V. "Labile organic matter of alluvial gray-humus soil with different agrochemical backgrounds (Sakhalin Island)." Вестник ДВО РАН, no. 3 (2021): 106–12. http://dx.doi.org/10.37102/0869-7698_2021_217_03_17.

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22

Kramarov, S. M., L. P. Bandura, І. O. Zaitseva, and О. S. Kramarov. "Dehumidification of the ordinary chernozem in the conditions of the Steppe zone of Ukraine." Scientific Journal Grain Crops 7, no. 2 (2023): 335–42. https://doi.org/10.31867/2523-4544/0295.

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Topicality. This study is relevant due to the need to address the problem of intensifying the negative impact of intensive agricultural activities on the zonal soil subtype of ordinary chernozem. In the northern sub-zone of the Steppe of Ukraine, the ordinary chernozem undergoes significant changes in all agrochemical parameters, especially in its humus content, due to the long-term impact of anthropogenic factors. Purpose. The research is aimed at generalising the research on the historical development of chernozems, assessing changes in the humus content of ordinary chernozem under the long-

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23

Trofimov, S. Ya, A. S. Lazarev, and A. D. Fokin. "Mineralization of organic-matter labile fragments in the humus-accumulative horizon of soddy-podzolic soil." Eurasian Soil Science 45, no. 12 (2012): 1110–19. http://dx.doi.org/10.1134/s1064229312120101.

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24

Lungul, A., M. Zhurba, O. Pyrih, et al. "Influence of biodestructors on sequestration of labile carbon compounds in the soil." Agroecological journal, no. 2 (May 24, 2024): 126–32. http://dx.doi.org/10.33730/2077-4893.2.2024.305669.

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Ukraine stands as a testament to agricultural wealth due to its fertile soils, most notably, its significant share of the world’s chornozem. Rich soil is fundemantal to agricultural production, and therefore the success of the agricultural industry heavily relies on the fertility of the soil. However, modern agricultural practices in Ukraine, have led to increased anthropogenic impact on soils, affecting their biodiversity and humus content. In this regard, it is becoming increasingly important to perform comprehensive studies of microbiological, biochemical and chemical processes in the soil

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25

Pikuła, Dorota, and Olga Ciotucha. "The Composition of the Organic Matter Fractions of Loamy Sand after Long-Term FYM Application without Liming." Agronomy 12, no. 10 (2022): 2385. http://dx.doi.org/10.3390/agronomy12102385.

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The key to soil organic matter management is understanding the transformation processes of fresh organic matter to permanent humus that control soil organic carbon dynamics. This paper presents the results of the effect of long-term soil fertilization with increasing doses of (manure) FYM and ammonium nitrate on the composition of humus compounds not limed of loamy sand. The study showed that both crop rotation and manure fertilization significantly affected organic matter fractions and humus humification index. The soil in crop rotation B (with enriching effect) accumulated significantly larg

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26

Ding, P., C. D. Shen, N. Wang, et al. "Turnover Rate of Soil Organic Matter and Origin of Soil 14Co2 in Deep Soil from a Subtropical Forest in Dinghushan Biosphere Reserve, South China." Radiocarbon 52, no. 3 (2010): 1422–34. http://dx.doi.org/10.1017/s0033822200046506.

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This paper examines the carbon isotopes (13C, 14C) of soil organic carbon (SOC) and soil CO2 from an evergreen broadleaf forest in southern China during the rainy season. The distribution of SOC δ13C, and SOC content with depth, exhibits a regular decomposition of SOC compartments with different turnover rates. Labile carbon is the main component in the topsoil (0–12 cm) and has a turnover rate between 0.1 and 0.01 yr–1. In the middle section (12–35 cm), SOC was mainly comprised of mediate carbon with turnover rates ranging between 0.01 and 0.025. Below 35 cm depth (underlayer section), the SO

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27

Aydin, Elena, Vladimír Šimanský, Ján Horák, and Dušan Igaz. "Potential of Biochar to Alternate Soil Properties and Crop Yields 3 and 4 Years after the Application." Agronomy 10, no. 6 (2020): 889. http://dx.doi.org/10.3390/agronomy10060889.

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Several studies have reported that biochar can improve soil properties which are linked with higher crop yields and this effect is long-term. This paper aimed to study the effects of biochar (0, 10 and 20 t ha−1) and its combinations with N-fertilization (zero, first and second level of N-fertilization) after 3 and 4 years of its application on improving soil characteristics of loamy Haplic Luvisol and crop yields (Dolná Malanta, Slovakia). The results indicated an increase in soil pH (+7%), improvement in sorption properties (hydrolytic acidity decreased by 11%, sum of basic cations and base

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28

Paré, D., R. Boutin, G. R. Larocque, and F. Raulier. "Effect of temperature on soil organic matter decomposition in three forest biomes of eastern Canada." Canadian Journal of Soil Science 86, Special Issue (2006): 247–56. http://dx.doi.org/10.4141/s05-084.

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The sensitivity of soil organic matter decomposition to temperature change is critical tothe global carbon balance and to whether soils will respond with positive feedback to climate change. Forest cover determines litter composition, which controls to a large extent soil organic matter quality and its sensitivity to temperature. The effect of temperature on soil organic matter decomposition was studied along a latitudinal gradient encompassing sugar maple, balsam fir and black spruce forest types. Long-term laboratory soil incubations conducted at four different temperatures were used to disc

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29

Zhang, Yifeng, Sen Dou, Batande Sinovuyo Ndzelu, et al. "Effects of returning corn straw and fermented corn straw to fields on the soil organic carbon pools and humus composition." SOIL 8, no. 2 (2022): 605–19. http://dx.doi.org/10.5194/soil-8-605-2022.

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Abstract. In our previous studies, we filtered out fungus (Trichoderma reesei) to have the best ability to transform corn straw into a humic-acid-like substance through laboratory incubation experiments. In order to further verify our former findings, we set up a 360 d field experiment that included three treatments applied under equal carbon (C) mass: (i) corn straw returned to the field (CS), (ii) fermented corn straw treated with Trichoderma reesei returned to the field (FCS-T), and (iii) blank control treatment (CK). Soil organic carbon (SOC), soil labile organic C components, soil humus c

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Titova, Vera, Irina Elshaeva, and Oksana Martyanova. "Approaches to assessing the effectiveness of measures on biological recultivation technogenically transformed soils of agricultural designation." АгроЭкоИнфо 4, no. 52 (2022): 3. http://dx.doi.org/10.51419/202124403.

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A brief analysis of modern normative acts of the Russian Federation dealing with issues of degradation and reclamation of soils of agricultural lands under agrotechnogenic impact is given. Algorithm of evaluation of efficiency of carrying out recultivation works where the quality of recovery of fertility of earlier man-caused disturbed soils after completing the stage of biological recultivation is evaluated not only with respect to the characteristic of the background but also in comparison with the characteristic of the soil after the technical stage of recultivation is offered. It is recomm

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Kaluzhskikh, A. G., A. G. Belyaev, and M. A. Zaikina. "Spatial variability of the content of labile humus substances in black soils and their relationship with microbial biomass." IOP Conference Series: Earth and Environmental Science 341 (November 15, 2019): 012018. http://dx.doi.org/10.1088/1755-1315/341/1/012018.

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Kobza, Jozef. "Mollic soils situated in non-Chernozem regions in Slovakia." Agriculture (Pol'nohospodárstvo) 68, no. 1 (2022): 25–33. http://dx.doi.org/10.2478/agri-2022-0003.

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Abstract This study is focused on an evaluation of some important soil properties as a result of the genesis of mollic soils which are located outside of the main Chernozem regions in Slovakia. Several soil profiles selected from the Soil Monitoring Network in Slovakia were evaluated and interpreted. Unified analytical procedures used in soil monitoring system have been applied. Following soil indicators: pH, humus content, and qualitative components as humic acids (HA) and fulvic acids (FA) as well as the fractional composition of HA, the content of labile carbon (CL), potentially mineralisab

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Yao, Yu, Ying Chen, Ruiming Han, et al. "Algal Decomposition Accelerates Denitrification as Evidenced by the High-Resolution Distribution of Nitrogen Fractions in the Sediment–Water Interface of Eutrophic Lakes." Water 16, no. 2 (2024): 341. http://dx.doi.org/10.3390/w16020341.

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This study investigates the decomposition process of algal blooms (ABs) in eutrophic lakes and its impact on the labile endogenous nitrogen (N) cycle. In situ techniques such as diffusive gradients in thin films (DGT) and high-resolution dialysis (HR-Peeper) were employed to decipher the vertical distribution of N fractions within the sediment–water interface (SWI) in Taihu, China. Additionally, an annular flume was used to simulate regional differences in lake conditions and understand labile nitrogen transformation during AB decomposition. This study reveals that the NH4+-N fraction exuded f

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Lytov, Mikhail N. "ALGORITHM FOR OPTIMIZING ORGANIC CARBON AND NITROGEN FLOWS ON RECLAIMED LANDS." Land Reclamation and Hydraulic Engineering 14, no. 4 (2024): 171–92. http://dx.doi.org/10.31774/2712-9357-2024-14-4-171-192.

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Purpose: to develop scientific approaches and an algorithm for optimizing organic carbon and nitrogen flows on reclaimed lands. Materials and methods. The working hypothesis of the research is that any level of agrocenosis bioproductivity requires a proportional amount of decomposable organic matter, which should not exceed a certain share of labile organic matter contained in the soil. Results. An algorithm that operates with two main regulators: the application mass of mineral nitrogen and organic matter, and determines the optimal balance for them, ensuring at least a non-negative trend in

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35

AMANGALIEV, B. M. "DYNAMICS OF FERTILITY INDICATORS OF LIGHT-CHESTNUT SOIL AND OIL FLAX PRODUCTIVITY UNDER BOGARIAN CONDITIONS OF SOUTHEAST KAZAKHSTAN." SABRAO Journal of Breeding and Genetics 55, no. 6 (2023): 2195–206. http://dx.doi.org/10.54910/sabrao2023.55.6.30.

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The suitable research aims to ascertain the optimum dose of mineral fertilizers and methods of soil processing and preparation for successful flax (Linum usitatissimum L.) cultivation in the semi-arid conditions of the Almaty Region, Kazakhstan, focusing on achieving high crop productivity with good seed quality. Agrochemical investigations also employed modern devices and widely accepted methods. Studying parameters, such as total humus, labile humus, nitrate nitrogen, mobile phosphorus, exchangeable potassium, soil composition density, structural-aggregate composition, and moisture supply, e

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36

Зотова, В. С., and А. М. Конова. "Agrochemical indicators of soil fertility of the Smolensk region in dynamics." Technical crops. Scientifical agricultural journal 4, no. 1(11) (2024): 26–32. http://dx.doi.org/10.54016/svitok.2024.69.69.004.

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Цель исследований – создание селективной системы «повышенная кислотность почвы – лён-долгунец» для проведения успешной селекции и получения новых форм льна-долгунца, устойчивых к повышенной кислотности почвы. Исследования выполняются на базе лаборатории селекционных технологий ОП Смоленский НИИСХ ФГБНУ ФНЦ ЛК с 2022 года. На начальном этапе исследований проведён аналитический обзор литературы по оценке почв Смоленской области по кислотности, плодородию и агрохимическим свойствам. Выявлено, что почвы Смоленской области характеризуются как преимущественно дерново-подзолистые, с низким содержание

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Bianchini Junior, I., MB Cunha-Santino, JU Ribeiro, and DGB Penteado. "Implication of anaerobic and aerobic decomposition of Eichhornia azurea (Sw.) Kunth. on the carbon cycling in a subtropical reservoir." Brazilian Journal of Biology 74, no. 1 (2014): 100–110. http://dx.doi.org/10.1590/1519-6984.17912.

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This study aimed at describing kinetic aspects of aerobic and anaerobic mineralization of Eicchornia azurea. The samples of aquatic macrophyte and water were collected in the Monjolinho Reservoir (22° 00′ S and 47° 54′ W). To determine the leachate potential, dried plant fragments were added to reservoir water, with sampling lasting for 4 months, where the particulate and dissolved organic carbon concentrations were measured. The kinetics of mass loss was obtained with 10 mineralization chambers for both aerobic and anaerobic conditions, with the plant fragments and reservoir water. Two additi

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Saakian, Alexander. "Influence of the peculiarities of using typical chernozem of the Kursk region on the molecular weight composition of labile humus substances." АгроЭкоИнфо 4, no. 46 (2021): 18. http://dx.doi.org/10.51419/20214418.

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polydisperse compounds. Under the influence of agricultural use, the dispersion of LHS increases, and the molecular weight composition of LHS is trans-formed towards the accumulation of fractions with lower molecular weights in their composition. As a result, the number average molecular weight of LHS decreases from 15230 amu. in LHS virgin chernozem up to 11180-12770 amu. near LHS chernozem under permanent crops and fallow. The replacement of permanent steam with a deposit does not fundamentally affect the degree of dispersion of LHS and the values of the molecular weights of the fractions. T

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Osipova, Regina, and Minnegali Gilyazov. "EFFECT OF CRUDE OIL CONTAMINATION ON SPRING RAPE VULNERABILITY BYDOWNY MILDEW IN FOREST GRAY SOIL." Vestnik of Kazan State Agrarian University 16, no. 1 (2021): 45–50. http://dx.doi.org/10.12737/2073-0462-2021-45-50.

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The work is devoted to the assessment of the impact of a single oil pollution of the soil on the yield and disease incidence of spring rape plants (Brassica napus L.). The study was conducted in experimental site of agrochemistry and soil science department of Kazan State Agrarian University, which is located in Predkamye zone of Tatarstan Republic. The soil in experimental site is clay loamy gray forest soil, which is typical for this zone. The main nutrient properties of uncontaminated soil was low content of humus, slightly high content of labile Phosphorous and moderate availability of lab

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Krylov, V. A., V. G. Mamontov, V. I. Lazarev, and O. V. Ryzhkov. "The Influence of Different Land Uses on the Elemental Composition of Labile Humus Substances in Typical Chernozem Typical of Kursk Oblast." Eurasian Soil Science 55, no. 8 (2022): 1033–40. http://dx.doi.org/10.1134/s1064229322080087.

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Jakubus, Monika, and Waldemar Spychalski. "Evaluation of Agricultural Value of Composts Prepared from Municipal Biowastes in Different Conditions of Composting Process." Agronomy 12, no. 6 (2022): 1438. http://dx.doi.org/10.3390/agronomy12061438.

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The increasing mass of organic waste as well as the assumptions of a circular economy enforce the rational management of this type of waste. One method of recycling is composting, which makes it possible to use waste efficiently as an organic fertilizer. This paper presents the results of a comparative study of six different composts in terms of their agricultural quality. The aim of this study was to evaluate the bioavailable amounts of metals using single extractions with DTPA solution and to characterize various humic compounds. Particular attention was paid to the amounts of labile carbon

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Olenin, Oleg, Sergey Zudilin, Yuriy Osorgin, Sergey Shevchenko, and Alexander Chernov. "Digital monitoring of agro-ecosystems indicators on the basis of space and unmanned technologies." BIO Web of Conferences 17 (2020): 00113. http://dx.doi.org/10.1051/bioconf/20201700113.

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The aim of the research is to develop a digital monitoring methodology for agro-ecosystem indicators based on space and unmanned technologies with the conversion of digital aerial photography results into real parameters of agrophytocenosis indicators as physical units. The paper uses the results of research on digital monitoring of agrophytocenosis of single- and poly-species crops of grain and leguminous crops on the experimental field of the Samara State Agrarian University in 2018 (southern forest-steppe of Trans-Volga region). The soil is a typical medium heavy black loamy chernozem (humu

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М.В., Медведева, Солодовников А.Н., Бахмет О.Н. та Ахметова Г.В. "АГРОЭКОЛОГИЧЕСКАЯ ОЦЕНКА ПОЧВ, ВОВЛЕЧЕННЫХ В ХОЗЯЙСТВЕННУЮ ДЕЯТЕЛЬНОСТЬ НА ТЕРРИТОРИИ КАРЕЛИИ (НА ПРИМЕРЕ БАЗИСНОГО ЛЕСНОГО ПИТОМНИКА)". Плодородие, № 2(125) (28 квітня 2022): 53–57. https://doi.org/10.25680/s19948603.2022.125.13.

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Представлены обобщенные результаты исследования почв, длительно используемых в лесных питомниках. Приведены данные о динамике изменения содержания гумуса и кислотно-основных свойств почв, оценки свойств почв (калия, фосфора, аммонийного и нитратного азота) в процессе их эксплуатации. Даны оценка обеспеченности почв элементами питания и рекомендации по повышению их плодородия. При сравнении с фоновыми показателями выявлены благоприятные тенденции к трансформации агрохимических свойств почв: изменение кислотности почв в сторону подщелачивания, увеличение содержания гумуса. При этом отмечается оч

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Anishchenko, L. N., S. N. Potsepai, A. A. Spravtsev, T. I. Vakina, M. V. Semyshev, and S. M. Sychev. "Organization of sustainable management of meadows in the Nonchernozem belt of the Russian Federation." Agrarian science, no. 9 (November 13, 2022): 120–25. http://dx.doi.org/10.32634/0869-8155-2022-362-9-120-125.

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Relevance and methodology. Meadow communities forming in various ecological regimes, participate in the biogeochemical carbon cycle, accumulating and retaining it, removing it from the atmospheric air. A significant part of the natural meadows in the old-developed region is intensively exploited and loses carbondepositing functions. The sustainable management of meadows under intensive exploitation provides for the organization of their restoration and optimal exploitation. In field and office work, the method of trial plots, ecological analytical methods with the determination of organic carb

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Clarholm, M. "Microbial biomass P, labile P, and acid phosphatase activity in the humus layer of a spruce forest, after repeated additions of fertilizers." Biology and Fertility of Soils 16, no. 4 (1993): 287–92. http://dx.doi.org/10.1007/bf00369306.

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Hall, G. E. M., J. E. Vaive, and A. I. MacLaurin. "Analytical aspects of the application of sodium pyrophosphate reagent in the specific extraction of the labile organic component of humus and soils." Journal of Geochemical Exploration 56, no. 1 (1996): 23–36. http://dx.doi.org/10.1016/0375-6742(95)00046-1.

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Kovalevskaya, N. P., N. E. Zavyalova, D. Yu Sharavin, and D. S. Fomin. "Biological activity of sod-podzolic soils in the long term experiment with different agrotechnical methods." Rossiiskaia selskokhoziaistvennaia nauka, no. 3 (June 24, 2019): 38–41. http://dx.doi.org/10.31857/s2500-26272019338-41.

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The effect of long-term application of grain-fallow-plow crop rotation with various legume densities, permanent cultivation of winter rye and barley, continuous bare fallow on the ecological and physiological state of the microbial community of sod-podzolic heavy loam soil was investigated. Biological activity indexes of soil microbiocenoses such as potential intensity of СО2 emission, microbial biomass gross respiration rate, metabolic coefficient, nitrogen fixation were assessed. It has been shown that the best humus state of soil and significant increase in the total nitrogen content provid

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Šrank, Dušan, and Vladimír Šimanský. "Differences in soil organic matter and humus of sandy soil after application of biochar substrates and combination of biochar substrates with mineral fertilizers." Acta fytotechnica et zootechnica 23, no. 3 (2020): 117–24. http://dx.doi.org/10.15414/afz.2020.23.03.117-124.

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The effort to achieve the sustainable farming system in arable soil led to the intensive search for a new solution but an inspiration can also be found in the application of traditional methods of soil fertility improvement as it is shown in numerous examples in history. Recently many scientific teams have focused their attention on the evaluation of biochar effects on soil properties and crop yields. Since there are a lot of knowledge gaps, especially in explanations how biochar can affect soil organic matter (SOM) and humus substances, we aimed this study at the solution of these questions.

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Л.Л., УБУГУНОВ, та УБУГУНОВА В.И. "ПОЙМЕННЫЕ ПОЧВЫ БЕССТОЧНОГО УЛЬДЗА-ТОРЕЙСКОГО БАССЕЙНА (МОНГОЛИЯ)". География и природные ресурсы 44, № 2 (2023): 161–71. http://dx.doi.org/10.15372/gipr20230217.

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Впервые получены новые данные о разнообразии, морфологическом строении, физико-химических и агрохимических свойствах почв поймы р. Ульдзы (Монголия, Ульдза-Торейская равнина). Установлено преобладание типа аллювиальных среднемощных темногумусовых почв засоленного и квазиглеевого подтипов. Выявлена важнейшая особенность формирования почв - близкий уровень грунтовых вод и легкий гранулометрический состав аллювиальных отложений, определяющие однотипную трансформацию растительных остатков (темногумусовую аккумуляцию). Сделан вывод, что различия между почвами связаны со степенью засоления и типом х

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Kachmar, Oksana, Oksana Vavrynovych, Anhelina Dubytska, et al. "Dynamics of labile and water-soluble forms of humus under influence of fertilizer systems and technologies of basic soil tillage in short-rotational crop rotation." Foothill and mountain agriculture and stockbreeding, no. (65) (September 9, 2019): 64–76. http://dx.doi.org/10.32636/01308521.2019-(65)-6.

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