scholarly journals Formation Of Structural-Aggregate Composition And Water-Physical Properties Of Gray Forest Soil Depending On Mineral Fertilizers And Long-Term Effect Of Lime

2017 ◽  
Author(s):  
M. A. TKACHENKO ◽  
◽  
S. G. PELIUKHOVSKIY ◽  
Keyword(s):  
Physical Properties ◽  
Forest Soil ◽  
Gray Forest Soil ◽  
Term Effect ◽  
Mineral Fertilizers ◽  
Long Term Effect ◽  
Aggregate Composition

The effectiveness of granular chalk use for growing winter wheat on grey forest soil

2020 ◽  
pp. 181-191
Author(s):  
M. Tkachenko ◽  
N. Borys ◽  
Ye. Kovalenko
Keyword(s):  
Winter Wheat ◽  
Physicochemical Properties ◽  
Forest Soil ◽  
Active Substance ◽  
Mass Fraction ◽  
Gray Forest Soil ◽  
Mineral Fertilizers ◽  
Acidic Soils ◽  
Grey Forest Soil

The research aims to establish the eff ectiveness of granular chalk use produced by «Slavuta-Calcium» Ltd. under growing Poliska–90 winter wheat variety, changing the physicochemical properties of grey forest soil and the wheat productivity. It also aims to establish optimal dosis of «Slavuta-Calcium» granular chalk as the meliorant and mineral fertilizer for grey forest soil in the system of winter wheat fertilization. In the temporary fi eld studies, various doses of nutrients N60–90–120P30–45–60K60–90–120 combined with «Slavuta–Calcium» granular chalk in a dose of Ca230–460–690 kg/ha of the active substance were studied against the background of secondary plowing of rotation products – soybean biomass that averaged 2.34 t/ha. Granular chalk is a modern complex highly eff ective meliorant with the content of Ca – 37.7 and Mg – 0.2 %, the mass fraction of carbonates (CaCO3 + MgCO3) makes at least 95 %. It is characterized by a high level of solubility when interacting with moisture in soil. It has a form of white granules, the mass fraction of 4.0–6.0 mm in size granules makes not less than 90 % and the one of 1.0 mm in size makes less than 5 %. Reactivity – 97 %. The granular chalk is advisable to apply on acidic soils, as a highly concentrated calcium-magnesium fertilizer, with the former as the dominant fertilizer, to optimize the physicochemical properties of the soil, as well as the plant nutrition system, in particular, increasing the availability of an element for assimilation by plants and as long-term ameliorants. The eff ectiveness of the use of mineral fertilizers, in particular acidic nitrogen on highly and medium acidic soils, after chemical reclamation is increased by 30–50 %, and slightly acidic by 15–20 %. The increase in productivity of crops from the combined eff ects of nutrients and chalk granulated is usually higher than when separately applied. The eff ectiveness of the integrated action of these elements is manifested in the growth of plant productivity and the quality of the resulting products, as well as the optimization of physical chemical properties and soil buff ering in the long term. In order to optimize the physicochemical properties of the arable layer of gray forest soil and the productive nutrition of agricultural crops, winter wheat, in particular, biogenic elements should be used in doses N60-90-120P30-45- 60K60-90-120 with granulated chalk «Slavuta-Calcium» in doses of Ca230-460-690 kg/ha of active substance. Granulated chalk obtained as a result of industrial grinding of solid sedimentary carbonate rocks of natural origin, subsequently under the infl uence of the granulation process of the starting material contains Ca and Mg carbonates of at least 95 %, dense granules which facilitates convenient mechanized application, as well as chalk suitable for accurate metered application on the quest map. Key words: granular chalk, gray forest soil, chemical reclamation, crop productivity.

Long-term effect of biochar on soil physical properties of agricultural soils with different textures

2021 ◽  
Author(s):  
Martin Zanutel ◽  
Sarah Garré ◽  
Charles Bielders
Keyword(s):  
Physical Properties ◽  
Bulk Density ◽  
Water Retention ◽  
Particle Density ◽  
Sandy Loam ◽  
Soil Physical Properties ◽  
Term Effect ◽  
Silt Loam ◽  
Long Term Effect

<p>In the context of global soil degradation, biochar is being promoted as a potential solution to improve soil quality, besides its carbon sequestration potential. Burying biochar in soils is known to effect soil physical quality in the short-term (<5 years), and the intensity of these effects depends on soil texture. However, the long-term effects of biochar remain largely unknown yet and are important to quantify given biochar’s persistency in soils. The objective of this study was therefore to assess the long-term effect of biochar on soil physical properties as a function of soil texture and biochar concentration.  For this purpose, soil physical properties (particle density, bulk density, porosity, water retention and hydraulic conductivity curves) were measured in the topsoil of three fields with former kiln sites containing charcoal more than 150 years old in Wallonia (southern Belgium).  The fields had a silt loam, loam and sandy loam texture.  Samples were collected along 3 transects in each field, from the center of the kiln sites outwards. </p><p>Particle density and bulk density slightly decreased as a function of charcoal content. Because particle density and bulk density were affected to a similar extent by charcoal content, total porosity was not affected by the presence of century-old charcoal. Regarding the soil water retention curve, charcoal affected mostly water content in the mesopore range. This effect was strongest for the sandy loam. On the other hand, the presence of century-old charcoal increased significantly the hydraulic conductivity at pF between 1.5 and 2 for the silt loam, while no effect of charcoal was observed for the loamy soil.  The study highlights a limited effect of century-old charcoal on the pore size distribution (at constant porosity) and on the resulting soil physical properties for the range of soils and charcoal concentrations investigated here.  Further research may be needed to confirm the observed trends over a wider range of soil types. </p>

Long-term Effect of a Single Application of Organic Refuse on Carbon Sequestration and Soil Physical Properties

2008 ◽  
Vol 37 (6) ◽  
pp. 2093-2099 ◽  
Author(s):  
J. Albaladejo ◽  
J. Lopez ◽  
C. Boix-Fayos ◽  
G.G. Barbera ◽  
M. Martinez-Mena
Keyword(s):  
Carbon Sequestration ◽  
Physical Properties ◽  
Soil Physical Properties ◽  
Term Effect ◽  
Single Application ◽  
Long Term Effect

scholarly journals The effect of mineral fertilizers and long-term aftereffect of liming on the biological properties of light gray forest soil and the yield of meadow clover 1g .p. in the conditions of the South-East of the Volga-Vyatka region

2021 ◽  
pp. 119-122
Author(s):  
A. V. Ivenin ◽  
A. P. Sakov ◽  
Yu. A. Bogomolovа ◽  
T. S. Вuzynina ◽  
V. V. Ivenin
Keyword(s):  
Forest Soil ◽  
Gray Forest Soil ◽  
Weather Conditions ◽  
Biological Properties ◽  
Mineral Fertilizers ◽  
Natural Fertility ◽  
Natural Soil ◽  
Average Yield ◽  
The South

The article deals with the influence of mineral fertilizers and the long-term aftereffect of liming on the biological properties of light gray forest soil and the yield of meadow clover 1 g.p. in the conditions of the South-East of the Volga-Vyatka region. The biological properties of light gray forest soil in 2020 were more influenced by the weather conditions of the pink clover vegetation and the culture itself than by the studied aftereffects of lime material and various doses of its mineral nutrition. The biological activity of the soil was in the range of 16.3–30.4%. The intensity of soil respiration was very weak and was in the range of 1.53–3.4 mg of CO2/10g for 24 hours. The average yield of the green mass of clover 1 g.p. (in terms of absolutely dry matter) was in the range of 30.4–33.2 t/ha (NSR05 by factor B-6.3) and did not depend on the aftereffect of the studied lime doses. The use of N45P120K180 doses of mineral fertilizers increases the average yield of pink clover 1 g.p. compared with the natural fertility of light gray forest soil and the variants of using N15P40K60 doses up to 37.9 t/ ha, which is by11.9 and 8.6 t/ha respectively higher than these variants (NSR05 for factor A-5.2). An increase was also obtained from the use of N30P80K120 doses of mineral fertilizers compared to the cultivation of clover according to natural soil fertility — by7.4 t/ha (NSR05 according to factor A-5.2).I n general, for 42 years of studying the aftereffect of liming it was shown, that by 2020 liming does not affect the biological properties of light gray forest soil and the yield of 1 g.p. clove according to all the studied doses of its use in the conditions of the South-East of the Volga-Vyatka region. The soil needs repeating of reclamation works.

scholarly journals Dynamics of agrochemical properties of gray forest soil of the Western Siberia’s sub-boreal zone affected by a long-term agricultural exploitation

2021 ◽  
Vol 36 ◽  
pp. 03006
Author(s):  
D.I. Eremin ◽  
E.P. Renev
Keyword(s):  
Forest Soil ◽  
Gray Forest Soil ◽  
Exchange Capacity ◽  
Chemical Degradation ◽  
Permanent Plots ◽  
Mineral Fertilizers ◽  
Boreal Zone ◽  
Base Exchange ◽  
Agrochemical Properties

We studied the changes in the agrochemical properties of the gray forest soil in the territory of Western Siberia’s sub-boreal zone affected by the long-term use of the organomineral fertilizers in the grain-follow-row crop rotation and in its absence. We used virgin areas of gray forest soil situated in the immediate proximity to the fields as a control. The anthropogenic changes of morphological features throughout the gray forest soil profile were identified based on the use of fixed permanent plots laid down in 1960. This paper describes the dynamics of the actual, exchange, and hydrolytic acidity as well as the amount of absorbed bases, together with the base exchange capacity and the degree of base saturation. The study of arable gray forest soil for the period 1960-2020 was performed. This provided an opportunity to identify the causes of its chemical degradation in the sub-boreal zone of the Trans-Urals under the conditions of a plant residue shortage. The systematic use of mineral fertilizers affects the base exchange capacity and triggers an increase in the arable layer’s acidity. The use of an organic fertilizer system stabilizes the chemical properties of gray forest soil.

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