scholarly journals Influence of destructors on the mineralization of plant residues and the biological activity of the dark chestnut soil of the steppe zone with a different system of its processing

2020 ◽  
pp. 49
Author(s):  
А.М. Kovalenko ◽  
О.А. Kovalenko ◽  
V.G. Pіliarskyi
Keyword(s):  
Biological Activity ◽  
Chestnut Soil ◽  
Steppe Zone ◽  
Plant Residues ◽  
Dark Chestnut Soil

Fertilizer Nitrogen Use by Spring Triticale and Spring Wheat on Dark-Chestnut Soil of the Dry Steppe Zone of Kazakhstan

2018 ◽  
Vol 44 (2) ◽  
pp. 153-156 ◽  
Author(s):  
A. A. Zavalin ◽  
A. K. Kurishbayev ◽  
R. Kh. Ramazanova ◽  
A. E. Tursinbaeva ◽  
A. Kassipkhan
Keyword(s):  
Spring Wheat ◽  
Chestnut Soil ◽  
Steppe Zone ◽  
Nitrogen Use ◽  
Fertilizer Nitrogen ◽  
Dark Chestnut Soil ◽  
Spring Triticale ◽  
Dry Steppe

scholarly journals Plant growth-promoting and antifungal activity of yeasts from dark chestnut soil

2015 ◽  
Vol 175 ◽  
pp. 78-83 ◽  
Author(s):  
Lyudmila V. Ignatova ◽  
Yelena V. Brazhnikova ◽  
Ramza Z. Berzhanova ◽  
Togzhan D. Mukasheva
Keyword(s):  
Antifungal Activity ◽  
Plant Growth ◽  
Chestnut Soil ◽  
Dark Chestnut Soil ◽  
Plant Growth Promoting ◽  
Growth Promoting

scholarly journals ANTI-EROSION EFFICIENCY OF FALLOW LANDS DEVELOPMENT TECHNOLOGIES IN THE STEPPE ZONE

2020 ◽  
Vol 15 (1) ◽  
pp. 43-47
Author(s):  
Egor Chebochakov ◽  
Valeriy Murtaev
Keyword(s):  
Mechanical Treatment ◽  
Humus Content ◽  
Chestnut Soil ◽  
Steppe Zone ◽  
Central Siberia ◽  
Green Mass ◽  
Fallow Lands ◽  
Southern Chernozem ◽  
Erosion Efficiency ◽  
The Republic

Research was conducted with the aim of developing technology for the development of fallow lands in the south of Central Siberia. The work was carried out in 2012-2015 on chestnut soil (experiment 1) and southern chernozem (experiment 2) in the Republic of Khakassia. The humus content in the 0 ... 20 cm layer of chestnut soil is 2.67%, N-NO3 is 20.1 ... 22.4 mg/kg, P2O5 and K2O (according to Machigin) are 23.5 and 328 mg/kg, respectively, in southern chernozem - respectively 4.5%, 16.6 ... 19.2, 19.3 and 720 mg/kg. The experimental designs provided for various combinations of mechanical tillage and spraying with herbicides of fallow plots, performed at different times, in the year preceding the sowing of crops. In technologies using herbicides in August, the amount of conditional stubble in spring was 60 pcs/m2 more, and erosion was 1.7 ... 2.5 times lower than in versions with flat cutting. The dumping of chestnut soil increases the yield of green mass of oats, compared with flat-cut, by 2.5 t/ha (24.5%), corn - by 4.0 t/ha (31.2%). In the southern chernozem, the technology with plowing ensured the formation of 5.7 t/ha of green mass of oats, which is 0.5 t/ha (8.8%) more than during flat cutting. In general, in the steppe zone of Central Siberia, the use of plowing in the technology for the development of fallow lands increases their productivity, while the greatest protection of the soil from erosion is provided by replacing its mechanical treatment in August with spraying with herbicides

scholarly journals Agroecological effi ciency of organic fertilizers’ placement methods

2019 ◽  
Vol 49 (5) ◽  
pp. 5-10
Author(s):  
A. S. Sotpa ◽  
T. F. Zharova
Keyword(s):  
Spring Wheat ◽  
Green Manure ◽  
Chestnut Soil ◽  
Weather Conditions ◽  
Steppe Zone ◽  
Organic Fertilizers ◽  
Nitrate Content ◽  
The Republic ◽  
Bare Fallow ◽  
Green Manure Crops

The results of studies on the effect of bare and green-manured fallow (melilot, peas, peas + oats), as well as methods of placing green manure crops and manure (plowed to a depth of 18–20 cm and cultivated at 8–10 cm) on the fertility and productivity of dark chestnut soil are presented. Field experiment took place in the steppe zone of the Republic of Tuva. The weather conditions during the study period were noted as characteristic for the conditions of the steppe zone: 2016 and 2017 were arid, whereas 2018 was wet. Bare fallow was more effective for the accumulation of productive moisture than green-manured one both in autumn and in spring before sowing spring wheat. In autumn, after bare fallow, the moisture content was higher by 14.7%, in spring by 32.8%. The surface placement of green manure crops contributed to a lesser desiccation of the soil. The best supply of nitrate nitrogen before sowing wheat was noted in fallow fi elds with manure and melilot (17.1-15.6 mg/kg). Methods of placing organic fertilizers did not affect the nitrate content in the soil. The yield of spring wheat was affected by preceding crops and methods of placing fertilizers. The highest yield of spring wheat was obtained in the bare-fallowed fertilized fi eld, which was by 0.2–0.5 t/ha higher than with all types of bare or green-manured fallow. Deep (18–20 cm) placement of manure increased the yield of spring wheat by 0.2 t/ha (10.5%). Placement of green-manured crops on the surface made it possible, on average during the experiment, to increase this indicator by 0.1–0.3 t/ ha (7.1–20%).

scholarly journals Taxonomic structure of the southern chernozem under application of biological preparations and different farming systems

2021 ◽  
Vol 937 (3) ◽  
pp. 032011
Author(s):  
T N Melnichuk ◽  
S F Abdurashytov ◽  
A Yu Egovtseva ◽  
E R Abdurashytova ◽  
E N Turin ◽  
...  
Keyword(s):  
Farming Systems ◽  
Steppe Zone ◽  
Farming System ◽  
Water Soluble ◽  
Plant Residues ◽  
Quantitative Composition ◽  
Taxonomic Structure ◽  
Virgin Soil ◽  
No Till ◽  
Southern Chernozem

Abstract The study of the taxonomic structure of the southern chernozem under influence of microbial preparations and various farming systems in the conditions of the southern steppe zone has been carried out. Metagenomic analysis of the microbiome of southern chernozem showed the presence of 174 genera representatives of prokaryotes, among which 17 are dominant, representing more than 1%. Farming systems cause changes in the taxonomic structure of the microbiome in comparison with virgin soil in the steppe zone. The influence of microbial preparations of complex action on the qualitative and quantitative composition of the microbiome of southern chernozem and increasing under no-till farming system has been established. The maximum content of water-soluble organic matter was found in virgin soil, which has higher amount of plant residues, up to 491 mg/kg of soil. Under the influence of farming systems its amount decreased in 4.2-8.5 times. The use of a complex of microbial preparations in the southern chernozem contributed to an increase in the amount of water-soluble fraction of humus depending on the farming system: 1.7 times with the conventional farming system and 3 times with no-till compared to the control without CMP.

scholarly journals The Effect of Prolonged Irrigation on the Dry Steppe Soils’ Fertility in the Volga Region

2018 ◽  
Vol 7 (4.38) ◽  
pp. 1210
Author(s):  
Nina Anatolyevna Pronko ◽  
Viktor Vladislavovich Korsak ◽  
Lubov Gennadievna Romanova ◽  
Aleksey Vladimirovich Kravchuk ◽  
Vladimir Viktorovich Afonin
Keyword(s):  
Organic Matter ◽  
Chestnut Soil ◽  
Steppe Zone ◽  
Organic Fertilizers ◽  
Nitrogen Fertilizers ◽  
Volga Region ◽  
Irrigated Agriculture ◽  
Qualitative Composition ◽  
Dry Steppe ◽  
Irrigated Soils

The article deals with the negative effect of the prolonged irrigation on the contents and quality of humus, and plant nutrients’ stock in the soil. The research was aimed at studying the nature and regularities of the transformation of organic matter (humus) and nutrients in the dark chestnut soil of dry steppe zone in the Volga region in the process of irrigation over half a century long. Field and laboratory experiments, as well as theoretical methods, such as mathematical statistics were used for studying the soil agrochemical properties. The research has shown that humus mineralization in irrigated soils is more pronounced, compared to nonirrigated soils, dehumification increases with increasing the period of irrigation and intensification of agriculture; the content and stock of humus decreases with irrigation, and is accompanied by the negative changes in its qualitative composition. The article describes the reasons for dehumification and negative changes in the qualitative composition of humus in the dark chestnut soils: deficient nitrogen balance due to insufficient use of nitrogen fertilizers, which resulted in the destruction of the organic matter in the soil, increased share of tilled crops in the crop structure, absence of nitrogen-fixing ability in alfalfa due to significant soil compaction, and insufficient introduction of organic fertilizers. The found peculiarities of dehumification and reduction of nutrients availability in the soil, which are the most dangerous degradation processes in the soils of the region that reduce the efficiency of irrigated agriculture, are required for developing substantiated solutions for preventing dehumification, restoring the fertility of irrigated soils, and reducing deficiency of foodstuffs in arid regions.  

scholarly journals Efficiency of cultivation of a winter wheat on various sternevy backgrounds in an agrolandscape of a zone of the Central Ciscaucasia

2019 ◽  
pp. 41-46
Author(s):  
Елена Менькина ◽  
Elena Men'kina ◽  
Ю. Кузыченко ◽  
Yu. Kuzychenko
Keyword(s):  
Experimental Data ◽  
Biological Activity ◽  
Winter Wheat ◽  
Granulometric Composition ◽  
Composition Range ◽  
Statistical Processing ◽  
Early Spring ◽  
Plant Residues ◽  
Spring Period ◽  
Different Levels

Abstract. The research results are devoted to assessing the effectiveness of cultivating winter wheat on various taxonomic elements (taxa) of the agrolandscape: the outskirts of the plakor (A1), the root slope of the SE exposure (A2), the lower part of the root slope (A4), the root slope of the SV exposure (A4) using the stubble system backgrounds, including three options: stubble (control); leaving stubble and plant residues; removal of stubble and plant residues in the zone of unstable moistening of the Central Ciscaucasia. Soils of taxa of light-loamy granulometric composition, range of agrochemical parameters: humus 2.65–3.85%; P2O5 15.7–21.1 mg/kg; K2O 127.5–189.8 mg/kg. The method of dimensions determined the possibility, according to the humidity and the presence of plant residues, to predict the relative biological activity of the soil, taking into account the adaptation coefficient C, obtained experimentally for a specific type of soil. Over the years of research, the amount of precipitation of the early spring period (March) averaged 58 mm, and of the late spring period (May) 126 mm. Statistical processing of experimental data on the biological activity of the soil, according to the degree of decomposition of flax linen at different levels of moisture, showed the greatest biological activity in the lower part of the root slope (A3) – 35 %. Established a significant increase in the yield of winter wheat on the facial elements A2, A3 and A4 in comparison with the poster (A1), amounting to 4.2; 14.3 and 5.5 c/ha, respectively, with the highest yield observed in the lower part of the root slope (A3) – 33.3 c/ha. Stubble backgrounds are not a significant factor in the formation of a crop of winter wheat, the yield on stubble backgrounds is 24.8–25.2 c/ha.

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