Influence of phytomelioration on the processes of humus accumulation and microflora of agrogenic soils of Primorye

2021 ◽  
Author(s):  
L.N. Purtova ◽  
◽  
I.V. Kiseleva ◽  
L.N. Shchapova ◽  
◽  
...  
Keyword(s):  
Biological Activity ◽  
Humus Content ◽  
Carbon Pools ◽  
Agrochemical Properties ◽  
Humus State ◽  
Energy Indicators ◽  
Humus Accumulation ◽  
Positive Effect ◽  
Biological State ◽  
Integral Indicator

The monograph is devoted to the study of the influence of various phytomeliorants on the microflora, physicochemical and agrochemical properties of soils. Changes in carbon pools and СО2 emissions from soils, which are most widely used in agriculture of the region, have been studied. The data on the effect of various phytomeliorants on the humus state of soils, their biological activity and optical-energy indicators are presented. Taking into account the change in the integral indicator of the biological state of soils, the most effective phytomeliorants that have a positive effect on soil fertility have been identified. Methods for indicating changes in humus content and catalase activity under the influence of phytomeliorants and various systems of agrotechnical soil cultivation are proposed. The book is intended for soil scientists, ecologists, agrochemists, specialists dealing with agricultural issues, as well as students of relevant specialties.

scholarly journals Biological activity and humus state of soils in the near-adjacent part of the Selenga River

2021 ◽  
Vol 885 (1) ◽  
pp. 012066
Author(s):  
Ts D-Ts Korsunova ◽  
N D Baldanov ◽  
G D Chimitdorzhieva ◽  
E E Valova
Keyword(s):  
Biological Activity ◽  
Humus Content ◽  
Arable Land ◽  
Soil Productivity ◽  
Agricultural Practice ◽  
Humus Formation ◽  
Satisfactory Condition ◽  
Adjacent Part ◽  
Humus State ◽  
Alluvial Meadow

Abstract Peculiarities of humus formation and manifestation of biological activity of soils are revealed. The objects of research are grey forest nonpodzolized, alluvial meadow soils as arable land, meadow-marsh soils as hayfield. Humus condition of the studied soils is in satisfactory condition within each soil type. The current state of the humus fund of old-arable grey forest soils is characterized by low humus content and unsatisfactory composition, which is caused by the absence of fertility change. The productivity of meadow-marsh soils is high and considerably exceeds grey forest and alluvial meadow soils. The information obtained on biological activity, can be used in agricultural practice to assess soil productivity, as well as in environmental monitoring.

scholarly journals The Effect of Biohumus on Increasing of the Fertility Gray-Brown Soils in Mountainous Shirvan

2020 ◽  
Vol 6 (12) ◽  
pp. 100-104
Author(s):  
E. Abasova
Keyword(s):  
Mineral Nutrition ◽  
Humus Content ◽  
Soil Layer ◽  
Toxic Substances ◽  
Control Option ◽  
Mobile Forms ◽  
Agrochemical Properties ◽  
Humus State ◽  
Phosphorus And Potassium ◽  
Soil Buffering

The introduction of biohumus into degraded gray-brown soils contributed to the improvement of their agrophysical and agrochemical properties. The density of the arable horizon has decreased by 0.02–0.16 g/cm3, the content of water-resistant aggregates, providing an optimal water-air regime, has doubled. The introduction of biohumus can solve the problem of soil overconsolidation. The research results show that when biohumus is introduced into gray-brown soils in an amount of 3.0, 4.0 and 5.0 m/ha, certain changes occur in the humus content according to its introduction, that is, an increase in the humus content in the arable soil layer compared to with the control option was −0.33, 0.51 and 0.62%. Regular use of biohumus will allow to suspend the process of soil dehumification and improve the conditions of the humus state of the soil, as well as the mineral nutrition of plants, leads to an increase in total nitrogen, mobile forms of phosphorus and potassium, which participate and contribute to an increase in soil buffering and prevent the entry of toxic substances into plants.

EFFECT OF IRRIGATION AND GRASSING TO CHANGE SOME OF THE BIOLOGICAL PROPERTIES OF THE MINING OF BROWN CALCAREOUS SOILS

2019 ◽  
Vol 1 (1) ◽  
pp. 29-32
Author(s):  
Ruzimurod B. Boimurodov ◽  
Zebinisso Q. Bobokhonova
Keyword(s):  
Folic Acid ◽  
Humic Acid ◽  
Humic Acids ◽  
Rapid Growth ◽  
Growth And Development ◽  
Sharp Increase ◽  
Humus Content ◽  
Calcareous Soils ◽  
Biological Properties ◽  
Humus Accumulation

In this article is showing, that the irrigation mountain brown carbonate soils prone methods of irrigation and grassing comes the rapid growth and development of natural vegetation, which leads to intensive humus accumulation. Humus content in the upper layer is increased by 0.98% and a significantly smaller severely eroded. Increasing the amount of humus promotes accumulation mainly humic acids, that conducts to expansion of relations the content of humic acid: The content of folic acid. When grassing of soil traced sharp increase in the number associated with the related and R2 O3 humic acid.

scholarly journals EFFECT OF MICROBIAL PREPARATIONS ON THE HUMUS BALANCE IN SOD-PODZOLIC SOIL

2019 ◽  
Vol 29 ◽  
pp. 56-61
Author(s):  
L. V. Potapenko ◽  
L. М. Skachok ◽  
N. I. Horbachenko
Keyword(s):  
Organic Matter ◽  
Crop Rotation ◽  
Green Manure ◽  
Podzolic Soil ◽  
Humus Content ◽  
Organic Fertilizers ◽  
Organic Mineral ◽  
Rotation Methods ◽  
Comparative Results ◽  
Positive Effect

Objective. To study the efficiency of inoculation of seeds by biological preparations under in-fluence on humus balance in growing crops in short crop rotation. Methods. Field, laboratory, cal-culation-comparative. Results. It was found that the highest entrance of organic matter in the soil was due to the use of organo-mineral fertilizing system NPK-manure-green manure, which contrib-utes to the increase of organic carbon reserves by 17.4 t/ha without the use of microbial prepara-tions and by 18.0 t/ha against the background of microbial preparations in comparison with the mineral fertilizing system. The use of microbial preparations under the fertilizing systems NP-manure-green manure allows to increase the amount of organic matter entering the soil by 1.2 and 1.6 t/ha during crop rotation. Under the use of organic fertilizers (manure, green manure) in com-bination with mineral ones and seed inoculation, not only the recovery of fertility of sod-podzolic soil, but also increase in the content of humus within the limits of 0.43–0.53 t/ha is reported. The use of manure on the background of the NPK makes it possible to increase the humus reserves in the soil by 0.11 and 0.15 t/ha per year. During crop rotation, the amount of newly formed humus in this variant exceeded its mineralization loss by 0.42 t/ha without microbial preparations and by 0.58 t/ha on the background of microbial preparations. Conclusion. The positive effect of the use of biological preparations under inoculation of seeds in combination with the organo-mineral fertiliz-ing system on the content of humus in sod-podzolic soil on average by crop rotation was estab-lished. Organic-mineral fertilizing system (NPK + manure + green manure) provides the highest growth of humus reserve in soil — 0.53 t/ha per year. The use of microbial preparations in the cul-tivation of crops under this fertilizing system contributes to the increase of humus content in the soil by 0.16 t/ha during crop rotation.

scholarly journals The influence of the methods of the main tillage and fertilizers on the agrochemical properties of chernozem

2019 ◽  
pp. 38-44
Author(s):  
Tatyana Aleksandrovna Trofimova ◽  
Sergey Ivanovich Korzhov ◽  
Vladimir Petrovich Belogolovtsev ◽  
Sergey Anatolyevich Preymak
Keyword(s):  
Soil Fertility ◽  
Crop Rotation ◽  
Humus Content ◽  
Soil Layer ◽  
Organic Fertilizers ◽  
Short Term ◽  
Tillage Systems ◽  
Surface Distribution ◽  
Leached Chernozem ◽  
Agrochemical Properties

In experiments carried out on ordinary and leached chernozem, the effect of minimizing the methods of basic tillage and biologization on the fertility of these soils was analyzed. The studies were carried out in stationary and short-term experiments from 1984 to 2017. The effect of various methods and depths of the main tillage, autumn tillage systems, and fertilizers (mineral and organic) on the agrophysical, biological and agrochemical indicators of chernozem was studied. Refusal to carry out farewell processing in grain cultivating crop rotation leads to an increase in the differentiation of the arable layer, a decrease in the fertility of its lower part. The use of annual tillage in the crop rotation resulted in a decrease in the humus content in the soil layer of 0–40 cm by 0.17% (after fertilizers application) and by 0.22% (without fertilizers) compared to the dump processing by 20–22 cm. Organic fertilizers in a complex with minerals during farewell processing promotes an increase in the content of humus in comparison with the surface distribution during surface mulch tillage. A decrease in soil fertility and yield of cultivated crops without dump processing is proved.  

scholarly journals On the Study of the Humus State of Meadow Brown Soils

2021 ◽  
Vol 7 (6) ◽  
Author(s):  
B. Aliyeva
Keyword(s):  
Formation Process ◽  
Humus Content ◽  
Soil Formation ◽  
General Tendency ◽  
Meadow Soil ◽  
Humus Formation ◽  
Humus State ◽  
Effect Of Surface

Abstract. The studies carried out and the results obtained on the humus state of meadow brown soils are fully consistent with the literature. The change in the humus content in the soils of the meadow soil formation process depends on the effect of surface and ground moisture on humus formation. Studies have revealed that the humus content in meadow brown soils decreases gradually and relatively evenly with depth. For meadow soils with a meadow process of soil formation, there is a general tendency for a decrease in humus from the upper horizons to the lower ones.

scholarly journals Organic substances replenishment and high humus content of soil in the apple orchads under different fertilization

2021 ◽  
Vol 1 (99) ◽  
pp. 81-94
Author(s):  
P. H. Kopytko ◽  
◽  
R. V. Yakovenko ◽  
I. P. Petryshyna
Keyword(s):  
Biological Activity ◽  
Humus Content ◽  
Organic Fertilizers ◽  
Mineral Fertilizers ◽  
Organic Substances ◽  
Fertilized Soil ◽  
Small Roots ◽  
Mineralization Processes ◽  
Fallen Leaves ◽  
Old Trees

The balance of humus in a meter layer of dark gray, podzolized soil and podzolized chernozem of the experimental apple orchads and the study of their long-term fertilization was investigated (from the planting to 50-year old trees) with the use of organic (40 t/ha of cattle manure) and mineral fertilizers (N120P120K120), which were applied once in two years in autumn under the plowing in the row spacings at a depth of 18 20 cm. In the 20-year period (from 30- to 50-year-old experimental gardens) in a meter layer of dark gray podzolized soil on the non-fertilized control plots the amount of humus increased by 27 t/ha, and on the plots fertilized with manure – by 7 t/ha more and on the plots with mineral fertilizers – by 6 t/ha less and in podzolized chernozem – 37 t/ha and 3 t/ha more and 10 t/ha less respectively. Such changes in humus storage were caused by different replenishment of organic substances, and, to a greater extent, an increase in the biological activity of the fertilized soil, in particular the intensity of mineralization processes of organic matter, and in particular the humus compounds. Also, the replanishment of such soils in the gardens by the organic mass of fallen leaves and thin (d≤1mm) small roots, which systematically grows and dies, providing root nutrition of fruit plants, was investigated. These sources supplemented with organic substances the layer of soil of 0 20 cm – with all the mass of leaves and 38,5 43,3% of the total roots, and the increase in humus content was in all roots of the layer of 0 60 cm: in non-fertilized areas of 11 t/ha in dark gray soil and 18 tons per hectare in chernozem, under organic fertilizers, by 14 and 19 t/ha, and under mineral fertilizers – by 3 and 9 t/ha respectively. The greatest quantity of humus was added in the layer 60 100 cm: 16 and 19 t/ha, 20 and 21 t/ha and 18 t/ha. Such results were conditioned by the intensification of biological activity, in particular mineralization processes, in the upper layers of fertilized soils at higher humus content, as well as the migration of soluble humus substances deep into the meter profile.

HUMUS STATE AND BIOLOGICAL ACTIVITY OF MAIN TYPES OF UZBEKISTAN SOILS

2017 ◽  
Vol 6 (6) ◽  
pp. 73-82
Author(s):  
Nоdira Raupova ◽  
◽  
Zilola Gulyamova
Keyword(s):  
Biological Activity ◽  
Humus State

DEVELOPMENT OF ROOT CELERY SEEDLINGS DEPENDING ON THE CONTENT OF VERMICULITE IN THE

2020 ◽  
Keyword(s):  
Plant Biomass ◽  
Solid Phase ◽  
Aqueous Suspension ◽  
Total Porosity ◽  
Moisture Capacity ◽  
Biometric Parameters ◽  
Volume Weight ◽  
Agrochemical Properties ◽  
Open Ground ◽  
Positive Effect

The article presents data of the influence of vermiculite content in the composition of soil-vermiculite substrates on agrophysical and agrochemical properties of substrates and on biometric indicators of root celery seedlings which grown on these substrates. The studies were conducted in the vegetation experiment, in the period 2014-2015 at the agricultural Institute named after N. P. Ogarev. We studied 7 levels of vermiculite content in the substrate, the properties of which were compared with the properties ofpure peat and mixed soil-vermiculite-peat substrate. By the time of root celery seedlings planting into the open ground, volume of the root system, leaf area and plant biomass were determined. A positive effect on the properties of substrates and biometric parameters of seedlings was observed with the content of vermiculite in the substrate in the amount of 50 to 65 % There was a decrease in volume weight and acidity, increased moisture capacity, porosity. Adding peat to the soil-vermiculite substrate in an amount of 30% improved the properties of the substrate and biometric parameters of seedlings. The increase in the share of vermiculite in the substrate from 80 to 100% greatly reduces the biometric indicators of celery seedlings. The dependence of biomass from the agrophysical and agrochemical indicators of the substrate was curvilinear. The optimal values of substrate parameters were established: volume weight - 0.55 g/cm , capillary moisture capacity - 120 %, total porosity - 77 %, the proportion of solid phase - 22 %, liquid phase - 52 %, gas phase - 26 %, pH of aqueous suspension - 7.1, electrical conductivity - 0.16 mSm / cm. The greatest influence on the biometric indicators of seedlings belongs to agrophysical properties of substrates.

scholarly journals Agrochemical properties of alluvial soils of Insar river flood

2019 ◽  
pp. 8-12
Author(s):  
Natalia Nikolaevna Ivanova ◽  
Vasily Ivanovich Kargin ◽  
Aleksandr Nikiphorovich Danilov ◽  
Aleksandr Vladimirovich Letuchiy
Keyword(s):  
Humus Content ◽  
Granular Soil ◽  
Available Phosphorus ◽  
Granular Soils ◽  
Alluvial Soils ◽  
Soil Potassium ◽  
Active Reaction ◽  
Agrochemical Properties ◽  
River Flood ◽  
Hydrolytic Acidity

Studies show that the most fertile are the granular soils of the Central floodplain of the Insar river. They have high humus content in the upper horizons – 4.6-7.6 %. Down the profile, the humus content gradually decreases, but remains relatively high: at a depth of 60-70 cm – 4.0 %. The humus content in alluvial granular-layered and meadow-marsh soils is much lower. The active reaction of these soils is neutral or slightly acidic, since the river and groundwater of the Insar floodplain are medium mineralized and belong to the class of bicarbonate. The hydrolytic acidity of the alluvial granular soil of the Insar floodplain is 1.6-3.0 mg / 100 g of soil. The values of hydrolytic acidity of alluvial granular-layered and meadow-marsh soils are higher: 2.6-3.6 and 1.8–3.2 mg/100 g of soil, respectively. The studied alluvial soils are almost completely saturated with bases: 91-97 %. The studied alluvial granular soils of the Insar floodplain are characterized by an average content of available phosphorus. In granular-layered and meadow-marsh soils, the amount of this element is slightly less and is 7.0–5.1 and 7.4–5.4 mg/100 g of soil, respectively. The most potassium-rich alluvial granular soil in the floodplain of the Insar river, where the content of this element in the upper layers is characterized as high: 16.5–27.6 mg/100 g of soil. In the sod layer of granular-layered soil, potassium availability is average: 9.5-15.4 mg / 100 g of soil. In the turf layer of meadow-marsh soils, potassium content is observed for most crops (8.0-10.4 mg / 100 g of soil), with depth it decreases.

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