scholarly journals Changes in the parameters of grey forest soil with long-term use of organic and mineral fertilizers

2020 ◽  
Vol 98 (1) ◽  
pp. 19-24
Author(s):  
S. Degodiuk ◽  
E. Degodiuk ◽  
O. Litvinova ◽  
Ju. Bodnar ◽  
N. Buslaieva
2020 ◽  
pp. 181-191
Author(s):  
M. Tkachenko ◽  
N. Borys ◽  
Ye. Kovalenko

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.


2020 ◽  
Vol 21 (2) ◽  
pp. 160-168
Author(s):  
N. A. Kodochilova ◽  
T. S. Buzynina ◽  
L. D. Varlamova ◽  
E. A. Katerova

The studies on assessment of changes in the content and composition of soil organic matter under the influence of the systematic use of mineral fertilizers (NPK)1, (NPK)2, (NPK)3 against the background of the aftereffect of single liming in doses of 1.0 and 2.0 h. a. (control – variants without fertilizers and lime) were conducted in the conditions of the Nizhny Novgorod region in a long – term stationary experiment on light-grey forest soil. The research was carried out upon comple-tion of the fifth rotation of the eight-field crop rotation. The results of the study showed that for 40 years (from 1978 to 2018) the humus content in the soil (0-20 cm) decreased by 0.19-0.52 abs. % in variants as compared to the original (1.60 %); though, humus mineralization was less evident against the background of long-term use of mineral fertilizers compared to non-fertilized control. The higher humus content in the topsoil was noted in the variants with minimal (NPK)1 and increased (NPK)2 doses of fertilizer – 1.41 and 1.25 %, respectively. The humus content in non-fertilized soil and when applying high (NPK)3 doses of mineral fertilizers was almost identical – 1.08-1.09 %. The predominant group in the composition of humus were humic acids, the content of which in the experiment on average was 37.8 % of the total carbon with an evident decrease from 42.6 % in the control to 31.8% when applying increased doses of mineral fertilizers. The aftereffect of liming, carried out in 1978, was unstable and did not significantly affect the content and composition of soil organic matter.


Author(s):  
V. А. Shevchenko ◽  
A. V. Nefedov ◽  
A. V. Ilinskiy ◽  
А. Е. Morozov

Long-term observations of the drained soil of peat-podzolic-gley light loam on ancient alluvial sands state on the example of the meliorative object "Tinky-2" showed that under the influence of agricultural use in the soil, the organic matter mineralization processes are accelerated. During the drainage process, the soil evolutionarily suffered the following changes: the peat layer was compacted, humified and mineralized, which was a reason of the transformation them into the humus horizon. Based on the monitoring studies results it was established that during 21 intensive use years the peat layer thickness was decreased by 74.5% and amounted to 5.51 inch, which in the following 20 years was decreased to a layer of 1.18 inch, and for another 14 years it became a homogeneous humus horizon containing difficulty identifiable plant remains. For half a century, the bulk density increased by 6 times and the total moisture capacity of the soil decreased by 3.6 times. Other indicators were changed significantly. So, the ash content by 2016 increased from 11.2% to 52.7%. It was a reason of the plough-layer decreasing and it mixes with the mineral sand horizon during plowing. It should also be noted that the total nitrogen content in the soil decreased by 1.13%, and total carbon by 15.3% from 1982 to 2016. The dynamics of changes in the soil acidity, phosphorus and potassium content is associated with the introduction of calcareous, organic and mineral fertilizers in the 1980s. The unsystematic exploitation of such soils leads to decrease in the agricultural products productivity and increase in energy costs. When planning these soils usage in agricultural production, it is necessary to develop and implement modern melioration technologies and techniques aimed to increase soil fertility.


2018 ◽  
Vol 69 (10) ◽  
pp. 2608-1612 ◽  
Author(s):  
Alina Dora Samuel ◽  
Simona Bungau ◽  
Delia Mirela Tit ◽  
Carmen Elena Melinte (Frunzulica) ◽  
Lavinia Purza ◽  
...  

Long term productivity and conservation of soils is critical for sustaining agricultural ecosystems. The specific objective of the work reported was to determine the effects of long term application of organic and mineral fertilizers on soil enzyme activity as an index of soil biology and biochemistry. Three key soil enzymes involved in intracellular metabolism of microorganisms and two soil enzymes involved in phosphorus metabolism were selected. Actual and potential dehydrogenase, catalase, acid and alkaline phosphatase activities were determined in the 0-20 cm layer of an eroded soil submitted to a complex fertilization experiment. Results showed that addition of mineral fertilizers to organic (green manure and farmyard manure) fertilizers led to a significant increase in each activity because of increased plant biomass production which upon incorporation stimulates soil biological activity. The enzymatic indicators of soil quality calculated from the values of enzymatic activities depending on the kind of fertilizers showed that by the determination of enzymatic activities valuable information can be obtained regarding fertility status of soils. A weak positive correlation between enzymatic indicators of soil quality and maize yield was established. The yield data demonstrate the superiority of farmyard manure which provided greater stability in crop production. Substantial improvement in soil biological activity due to application of organic fertilizers with mineral fertilizers contribute in maintaining the productivity and soil health.


2021 ◽  
pp. 119-122
Author(s):  
A. V. Ivenin ◽  
A. P. Sakov ◽  
Yu. A. Bogomolovа ◽  
T. S. Вuzynina ◽  
V. V. Ivenin

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.


2014 ◽  
Vol 197 ◽  
pp. 309-317 ◽  
Author(s):  
T. Vanden Nest ◽  
B. Vandecasteele ◽  
G. Ruysschaert ◽  
M. Cougnon ◽  
R. Merckx ◽  
...  

2018 ◽  
Vol 2 (95) ◽  
pp. 35-41
Author(s):  
S.H. Korsun ◽  
A.V. Davydiuk ◽  
V.V. Hirnyk

Purpose. Identify the features of changes in the factor of potassium capacity of dark gray soil under long-term systematic application of different doses of mineral and organic fertilizers. Methods. Field, laboratory, mathematical and statistical. Results. At various intensities of fertilizer systems and fertilizer ratios, it has been established that the long (30 years) use of organic and mineral fertilizers contributed not only to stabilization but also to the restoration of the stock of moving potassium in the arable soil layer in comparison with the initial data (1987).The growth of mobile potassium content was consistent with the increase in the agrochemical load in crop rotation. Conclusions. Long-term systematic application for 1987–2000 years mineral fertilizers in doses of 265–397 kg of NPK on the background of 10 tons of manure per 1 ha of crop rotation, in 2001–2010 years – 211–316,5 kg of NPK per 1 ha, and in 2011–2017 years – 217,5–326,4 kg of NPK per 1 ha on the background plowing crop by-products had a significant impact in the factor on the capacity factor of potassium of dark gray podzolized soil, ensuring it is elevated and very high level.


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