scholarly journals THE MICROMORPHOLOGY AND MINERALOGY OF GRAY FOREST SOILS IN VLADIMIR OPOLYE

2018 ◽  
pp. 101-123
Author(s):  
D. V. Karpova ◽  
P. N. Balabko ◽  
N. P. Chizhikova ◽  
L. V. Beskin ◽  
N. A. Kolobova ◽  
...  
Keyword(s):  
Forest Soils ◽  
Humus Horizon ◽  
Ecological Status ◽  
Plant Residues ◽  
Main Process ◽  
Forming Process ◽  
Gray Forest Soils ◽  
Modern Soil ◽  
Humus Type ◽  
Medium Silt

The investigations were conducted on the gray forest heavy clay loamy soils, formed on the loess-like loams, which are widely spread on the territory of Vladimir Opolye. The eluvial-illuvial profile differentiation, its different intensity and the specificity of illuvial coatings (fine dispersed clayey and humus-clayey coatings with sparse skeletal content of soil) is confirmed. The presence of the coarse wooden plant residues, thick humus-clayey illuvial coatings within the illuvial horizons speak about the forest origin of the grey forest soils in Vladimir Opolye. The micromorphology of humus horizon reflects the direction of the soil forming process and the ecological status of soils. The illimerization is the main process of the matter migration and soil profile differentiation. The mixed-layer formations prevail in the clayey fraction. Mica, quartz, and K-feldspars are the prevailing compounds of the fine and medium silt within the gray forest soils. In the silt fraction of the second humus horizon prevail quartz and feld-spar. The most of the nutrients is concentrated in the clayey and fine-silt frac-tion. The micromorphological investigations confirmed the theory, which speaks about the presence of forest (the presence of illuvial coatings) as well as steppe soils (mull humus type in the SHH, the presence of primary and newly formed carbonates) specificities in the modern soil forming process within the gray forest soil of Vladimir Opolye.

scholarly journals Development of precision farming technologies

2021 ◽  
Vol 843 (1) ◽  
pp. 012031
Author(s):  
M A Mazirov ◽  
A O Ragimov ◽  
A A Korchagin ◽  
E M Shenterova ◽  
S D Malakhova
Keyword(s):  
Forest Soils ◽  
Humus Horizon ◽  
Field Studies ◽  
Perennial Grasses ◽  
Mineral Fertilizers ◽  
Experimental Site ◽  
Deep Soil ◽  
Gray Forest Soils ◽  
Long Line

Abstract The research was carried out on the territory of the Vladimir Opolye (Suzdal, Russian Federation). For the experimental site, in the watershed part of the plakor terrain with a slope of < 1°, a soil map was compiled. Field studies were carried out in a long-term stationary field experiment measuring 86 m by 280 m with the total area of 2.41 hectares. Four tillage systems were studied in the experiment: 1. generally accepted dump-annual dump plowing; 2. combined-energy-saving-alternation of small non-fall treatments with dump plowing of perennial grasses; 3. combined-tier-alternation of small non-fall treatments with plowing with a long-line plow of perennial grasses; 4. anti-erosion-alternation of deep non-fall treatments with plowing of perennial grasses. The results showed a different reaction of soil to agrotechnological techniques. Gray forest soils with a second humus horizon have a higher potential fertility, the advantage of which when applying moderate doses of mineral fertilizers was 3.3-4.4 centners per hectare of grain units compared to the background gray forest soils. A further increase in the dose negates these differences. Deep soil loosening by 25-27 cm also shows the advantage of soils with a second humus horizon, the yield increases were 4.4-5.2 centners per hectare.

USE OF AGRO-RESOURCE POTENTIAL OF GRAY FOREST SOILS OF UPPER VOLGA REGION

2020 ◽  
Keyword(s):  
Forest Soils ◽  
Perennial Grasses ◽  
Organic Fertilizers ◽  
Volga Region ◽  
Winter Rye ◽  
Resource Potential ◽  
Field Crops ◽  
Upper Volga ◽  
Gray Forest Soils ◽  
Winter Cereals

The results of long-term research on the influence of main indicators on their agro-resource potential are summarized on gray forest soils of the upper Volga region. For the conditions of the Vladimir Opolie, the probable yield of biomass and the main products of field crops were calculated at different coefficients ofphotosynthetic active radiation (FAR) use. Calculations of the main product yields are made taking into account the distribution of biomass to by-products and crop-root residues. For field crops of the studied crop rotations, the coefficients of precipitation utilization are estimated. They varied from 44 to 71%, depending on the crop rotation culture. On the slope of the southern exposure when cultivating winter cereals and perennial grasses, the main moisture losses were observed in the spring during snowmelt, when growing spring crops and potatoes, they were close in the autumn and spring periods. The sizes of moisture use by crops depending on the fertilizer systems for the creation of 1 C of grain units (g.u.) and from sub-arable layers are determined. In comparison with the liming background, the use of organic fertilizers reduced the water consumption coefficient from 9.6 to 8.5 mm/C g.u., their combination with a single dose of NPK - up to 7.3, and with a double dose - up to 6.8 mm / C g.u. Based on the amount of moisture used by crops, their possible yields are calculated. In spring crops, the amount of precipitation consumed (326-356 mm) corresponds to the use of 2.7-3% of the FAR and provides 54-60 C/ha of grain, in winter rye and wheat - about 4% of the FAR (yield 71-80 C/ha). In perennial grasses for 2 mowing, the moisture consumed is enough to use about 3% of the FAR., in potatoes -1.5%.

The use of algae-cyanobacterial communities for the assessment of lead pollution of gray forest soils

2011 ◽  
Vol 44 (3) ◽  
pp. 326-331 ◽  
Author(s):  
A. D. Temraleeva ◽  
D. L. Pinskii ◽  
E. N. Patova ◽  
E. V. Spirina
Keyword(s):  
Forest Soils ◽  
Lead Pollution ◽  
Gray Forest Soils

scholarly journals Clay profile in Greyzemic Phaeozems of the Pre-Carpathian region (Ukraine)

2018 ◽  
pp. 240-250
Author(s):  
Ihor Papish
Keyword(s):  
Humus Horizon ◽  
Dynamic Equilibrium ◽  
Soil Aggregates ◽  
Clay Material ◽  
Forming Process ◽  
Dual Nature ◽  
Carpathian Region ◽  
Humus Layer ◽  
Mineral Profile ◽  
Greyzemic Phaeozems

The aim of this article is to describe the formation of the chemic-mineralogical profile of Greyzemic Phaeozems on the various geomorphological surfaces in the Pre-Carpathian loess subprovince. The differentiation of the Greyzemic Phaeozems mineral mass is determined by the composition of soil-forming rocks, the nature of the formation of different geomorphological surfaces and the peculiarities of the soil-forming process. The mineral profile of Greyzemic Phaeozems is differentiated into two parts, the upper one is within the humus horizon and the lower one is a weakly humus layer. At the high Pliocene terraces of the Prut River, its dual nature is caused by lithologic heterogeneity of the soil-forming rocks, and within the limits of the San-Dnister Upland, the active development of the processes of the leaching of clay material due to podzolization and soil profile gleyzation. The common regularity of the mineral profile of the Greyzemic Phaeozems this region is the uniformity of the ratio of the main mineral phases of the fine material, the active eluviation from the humus horizon of the smectite material, the relative accumulation in the humus horizon illite minerals, and various clastogenic non-clay minerals. The negative trends in the clay profile evolution of Greyzemic Phaeozems cause the reduction of erosion resistance of these soils. The strength of the cohesion between soil aggregates is determined by the content of humus (humatic kind) and dominating smectite minerals in clay plasma. The processes of dehumification have been destabilized the mineral colloidal complex of Phaeozems and changed of smectite-illite dynamic equilibrium in soils. In Greyzemic Phaeozems the substantial loss of highly dispersive smectite material can be observed. The dominance of inactive bi-octahedral illite clay in the arable layer of Phaeozems reduces the role of clay plasma in the formation of water-stable micro- and macrostructure. Key words: chemic-mineralogical profile of soil, podzolization, gleyzation, content of humus, chemical equilibrium in soils.

On the diagnostics of eroded gray forest soils in the Vladimir opolie region

2007 ◽  
Vol 62 (1) ◽  
pp. 48-52
Author(s):  
M. S. Kuznetsov ◽  
N. I. Sukhanova ◽  
O. L. Kogan
Keyword(s):  
Forest Soils ◽  
Gray Forest Soils
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