scholarly journals Dependence of the content of microbial biomass in typical black soil on agrogenic factors and year season

2021 ◽  
Vol 845 (1) ◽  
pp. 012057
Author(s):  
A G Kaluzhskikh ◽  
A G Belyaev ◽  
N V Dolgopolova ◽  
N M Timofeeva ◽  
E V Malysheva
Keyword(s):  
Microbial Biomass ◽  
Crop Rotation ◽  
Soil Layer ◽  
Black Soil ◽  
Organic Fertilizers ◽  
Anthropogenic Factors ◽  
Environmental Practice ◽  
Soil Component ◽  
The Impact ◽  
Slope Direction

Abstract The authors of the paper found that the nature and direction of the seasonal dynamics of the content of microbial biomass in typical black soil in grain-fallow crop rotation differ depending on the slope direction, the cultivation system and the soil layer. The characteristics of the dynamics of the content of microbial biomass in typical black soil in the agroecosystem of grain-fallow crop rotation, depending on the slope direction and the type of soil cultivation are revealed. The influence of the slope direction on the dynamics of the microbial biomass in the soil is more pronounced in the layer of 10-20 cm. The need to ensure the supply of a sufficient amount of post-harvest residues and organic fertilizers to the soil is shown. The increase in the uniformity of the upper layer of typical black soil is associated with the constant mechanical man-made impact on it. The obtained results about the nature of the impact of the studied factors on the seasonal and spatial variability of microbial biomass can be used in the development of systems for the management of the biological activity and reproduction of organic matter in black soils in order to improve their ecological state. The results of studies of the ecologically and agronomically important soil component i.e. microbial biomass are necessary for the development of systems for the regulation of soil fertility in order to increase their productivity, as well as for the development of a control system for the content of microbial biomass in black soils. The experimental data can serve as the basis for a database on the microbial pool of various soils and ecosystems, which is advisable to use for model predictive calculations, including in different ecological scenarios. The assessment of the state of organisms living in the soil and their biodiversity are important in the solution of the problems of environmental practice: identification of zones of ecological disadvantage, calculation of damage caused by man-made activities, determination of the stability of the ecosystem and the impact of certain anthropogenic factors.

scholarly journals The Impact of Main Tillage Systems and Typical Chornozemic Soil Fertilisation on The Lumbricides Population in a Plow Layer of Soil and on The Productivity of Short Crop Rotation

2019 ◽  
pp. 49-59
Author(s):  
І. D. Prymak ◽  
І. А. Panchenko ◽  
О. B. Panchenko ◽  
S. М. Levandovska
Keyword(s):  
Crop Rotation ◽  
Soil Layer ◽  
Black Soil ◽  
Stationary Field ◽  
Tillage Systems ◽  
Soil Layers ◽  
General Number ◽  
The Impact ◽  
Watch List ◽  
Different Parts

The study is devoted to the analysis of the influence of four primary processing and fertilizer systems on the change in the number of lumbricides in the arable layer of typical black soil and the productivity of field grain-sowing crop rotation. The study material was the amount of lumbricides in the arable layer of black soil and their distribution depending on the main processing and fertilizer systems. The research methodology is based on experimental data obtained during 2016-2018 with a two-factor stationary field experiment, established in 2006 on the experimental field of the Belotserkovsky NAU. The highest amount of lumbricides in soil layers of 0-10, 20-30 and 0-30 cm is established under differential tillage, that is correspondently 39,3, 5,3 and 61,9 examples per square meter. It is 27,2, 20,5 and 24,0 percent more than on the watch list. Under poweredless and disc tillage there were correspondently 61,1 and 60,0 examples of lumbricides per square meter in a plow layer, so the results were close to powered-powerdless tillage. The decrease of the lumbricides population is observed during a crop vegetation. The biggest decrease in their number in a plow layer is established under powered tillage, that is 58,0%, and the smallest decrease is observed under poweredless tillage – 54,4 %. Under a disc and differential tillage such decrease was correspondently 55,0 and 56,0 %. The exact principles of lumbricides distribution in different parts of a plow layer under different main tillage systems are not established. Only a small increase in their number could be seen in a soil layer of 0-10 cm under poweredless and differential tillage and a decrease was observed under a disc tillage in comparison with the powered one. Thus, from the general number in a plow layer the amount of lumbricides in soil layers of 0-10, 10-20 and 20-30 cm was correspondently: under a powered tillage – 61,9; 29,3 and 8,8%, a poweredless tillage – 63,0; 29,6 and 7,4 %, a powered-poweredless tillage - 63,5; 28,1 and 8,4 %, a disc tillage – 60,0; 31,8 and 8,2 %. After the first, the second and the third levels of fertilization the number of lumbricides population was increasing correspondently 1,56, 2,07 and 2,32 times in comparison with the unfertilized areas. The productivity of a crop rotation does not differ significantly under a powered and a powered-poweredless tillage, but under a disc and poweredless ones it is much lower

The effect of long-term fertilization on forage crop productivity and quality in the North

2020 ◽  
Author(s):  
Н.Т. Чеботарёв ◽  
Н.Н. Шергина
Keyword(s):  
Crop Rotation ◽  
Starch Content ◽  
Crop Productivity ◽  
Komi Republic ◽  
Perennial Grasses ◽  
Organic Fertilizers ◽  
Nitrate Content ◽  
Mineral Fertilizers ◽  
Forage Crop ◽  
The Impact

В условиях Республики Коми в полевом стационарном опыте на дерново-подзолистой легкосуглинистой почве изучена эффективность различных доз органических и минеральных удобрений, а также совместного их применения. Исследования проводили в 1978–2019 годах на опытных полях Института агробиотехнологий ФИЦ Коми НЦ УрО РАН. Целью проводимых исследований было изучение влияния комплексного применения удобрений на продуктивность и качество кормовых культур в шестипольном севообороте. Кормовой севооборот имел следующее чередование культур: картофель, викоовсяная смесь с подсевом многолетних трав, многолетние травы 1 г.п., многолетние травы 2 г.п., викоовсяная смесь, картофель. В результате научных исследований (более 40 лет) установлено, что наиболее эффективной была органоминеральная система удобрений, особенно при внесении 80 т/га торфонавозного компоста (ТНК) и минеральных удобрений. Многолетние исследования показали, что наиболее значительные урожаи кормовых культур (в среднем за три ротации) получены при использовании 80 т/га ТНК и NPK: однолетних трав — 4,4 т/га; многолетних трав — 6,2 и картофеля — 7,1 т/га сухого вещества высокого качества. Содержание сухого вещества в клубнях картофеля в вариантах с NPK составило 18,0–18,8%, на органическом фоне — 18,4–18,9 и при комплексном применении удобрений — 17,1–17,7; в контроле — 19,6%. Количество крахмала в картофеле незначительно различалось по вариантам опыта и равнялось 12,6–13,1%. Содержание нитратов не превышало ПДК (250 мг/кг сырой массы). Количество сухого вещества в однолетних и многолетних травах изменялось незначительно и составляло 19,0–19,8 и 25,0–26,8% соответственно. Установлено, что удобрения способствовали повышению содержания сырого протеина в однолетних и многолетних травах до 13,1–15,0% (в контроле — 11,2%) и 8,8–10,6 % (в контроле — 8,1%) соответственно. The impact of various rates of organic and mineral fertilizers was analyzed in the Komi Republic on sod-podzolic soil with low loam content. The research took place at the Institute of Agricultural Biotechnology in 1978–2019. The goal was to test forage crop productivity and quality under fertilization and six-field crop rotation. Crop rotation happened as follows: potatoes, vetch-oat mixture overseeded by perennial grasses, first-year perennial grasses, second-year perennial grasses, vetch-oat mixture, potatoes. For 40 years the combination of mineral and organic fertilizers was the most effective. The highest yields for three rotations were observed under the application of 80 t ha-1 of peat-manure compost and NPK: annual grasses produced 4.4 t ha-1; perennial grasses — 6.2, and potatoes — 7.1 t ha-1 of high-quality dry matter (DM). Potato tubers accumulated 18.0–18.8% of DM under NPK application, 18.4–18.9 — under organic nutrition, 17.1–17.7 — when using complex fertilization, and 19.6% — in the control. Starch content varied within 12.6–13.1% in potatoes. Nitrate content did not exceed the maximum acceptable concentration (250 mg/kg of raw mass). DM concentrations amounted to 19.0–19.8 and 25.0–26.8% in annual and perennial grasses, respectively. Fertilization increased crude protein amount in annual and perennial grasses up to 13.1–15.0% (versus 11.2% in the control) and 8.8–10.6 % (versus 8.1%), respectively.

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 Impact of Organomineral Fertilization Systems on the Yield of Field Crops and Changes in the Productivity of Crop Rotation on Irrigated Ordinary Carbonate Chernozems of the Central Ciscaucasia

2021 ◽  
Vol 262 ◽  
pp. 01039
Author(s):  
Ruslan Bizhoev ◽  
Sarina Konova ◽  
Asiyat Sarbasheva ◽  
Olga Batyrova ◽  
Rada Gazheva
Keyword(s):  
Crop Rotation ◽  
Crop Yields ◽  
Humus Content ◽  
Mineral Fertilizer ◽  
Organic Fertilizers ◽  
Caucasus Region ◽  
Growing Seasons ◽  
Central Caucasus ◽  
The Impact ◽  
By Products

The paper presents the research results of the impact of different fertilization systems - mineral and organic, using intercropping of green manure crops, biological resources (straw of grain crops, foliar of maize) on crop yields of grain rotating crops - winter wheat, maize, peas and the productivity of hectare of arable black land of ordinary carbonate chernozem in dryland conditions of the Central Caucasus region with different indicators of growing seasons. The scientific novelty of the paper is the identification of optimum-rational fertilization systems and the justification of the influence of the studied fertilization systems and the use of by-products of the crop rotation, which make it possible to obtain stable crop yields and maintain the humus content in the soil. The work defines the efficiency of the use of different mineral fertilizer doses in combination with organic fertilizers, which form the highest crop yield and crop rotation productivity.

scholarly journals Models of the production process of agricultural plants for the analysis of the elements of some farming systems

2021 ◽  
Vol 1 (25) ◽  
pp. 8-27
Author(s):  
V.L. Badenko ◽  
◽  
A.G. Topazh ◽  
S.A. Medvedev ◽  
E.T. Zakharova ◽  
...  
Keyword(s):  
Production Process ◽  
Crop Rotation ◽  
Agricultural Production ◽  
Farming Systems ◽  
Integrated System ◽  
Organic Fertilizers ◽  
Agricultural Technologies ◽  
Agricultural Plants ◽  
The Impact

Currently, there are major changes in the concept of designing farming systems. They are associated with bridging the gap between socio-economic demands for increasing agricultural production and the scientific justification for sustainable agricultural land use. The article presents the results of solving this problem based on the use of an integrated system for modeling the production process of agricultural plants developed by the authors. This system was applied to analyze various agricultural technologies, in particular, alternative strategies for planning crop rotations in cropping systems. For this, the following tools existing in the environment of the developed system were used: 1) long-term analysis of a possible change in the fertility of agricultural fields when using different agricultural technologies; 2) substantiation of the selected crop rotation scheme, which includes various agricultural technologies and resource-saving measures; 3) model-based approach to assess the comparative effectiveness of alternative land use strategies. The first part of the article presents the results obtained using tools for assessment alternative agricultural technologies for harvesting associated with the abandonment or removal of plant residues from the agricultural field, as well as the impact of these agricultural technologies on the parameters of soil fertility in the long term. The results of the simulation show that the abandonment of crop residues has a positive effect on the dynamics of humus in the soil and on the nitrogen content in the meter soil layer. In the second part of the article, the results of the analysis of the comparative effectiveness of various crop rotation schemes and such agricultural activities as the application of organic fertilizers, the use of leguminous and winter catch crops are presented. The analysis made it possible to rank these measures in terms of the effectiveness of the impact on agricultural production; the use of organic fertilizers (manure) and including legumes in the crop rotation were the most effective ones. The presented results demonstrate the potential demand for the proposed methods and the developed integrated system for modeling the production process of agricultural plants to substantiate the elements of farming systems and analyze their impact on sustainable development.

scholarly journals Analysis of biogeochemical processes in plastic-covered soil during establishment period in strawberry cultivation

2020 ◽  
Vol 2 (10) ◽  
Author(s):  
M. Meyer ◽  
D. Diehl ◽  
G. E. Schaumann ◽  
K. Muñoz
Keyword(s):  
Microbial Biomass ◽  
Soil Quality ◽  
Elevated Temperatures ◽  
Soil Layer ◽  
Aggregate Stability ◽  
Belowground Biomass ◽  
Agricultural Practice ◽  
Soil Processes ◽  
Plastic Mulching ◽  
The Impact

Abstract Plastic mulching (PM) has become a widely applied agricultural practice to optimize plant growth. However, it is still under debate how PM influences biogeochemical soil processes and thus important factors of soil quality, such as soil organic matter (SOM) composition, aggregate stability and microbial biomass. Our objective was to identify the impact of PM on biogeochemical soil processes. Therefore, we compared a plastic-covered strawberry cultivation system (PC) with an uncovered system (NC) in three soil layers (0–10, 10–30 and 30–60 cm) at three dates during a 4-month period of strawberry establishment from their transplanting in summer to the beginning of winter. The PC shifted the microclimate of the soil towards higher temperatures but lower moistures in the 0–35 cm soil layer compared to uncovered soil. Predominantly in the surface layer, the PC reduces leaching processes, which can improve nutrient (fertilizer) use efficiency. PC increased SOM and shifted SOM to a more stable SOM. The higher SOM under PC despite larger microbial biomass and elevated temperatures, indicate that belowground biomass inputs compensate the potential SOM losses by an enhanced SOM decomposition under PC. We demonstrated that PC influenced soil processes already within the 4-month period of strawberry establishment, partially down to the 30–60 soil layer. Further, long-term studies are required to estimate the influence of multi-annual PM application on biogeochemical soil processes and on soil quality.

The effect of fertilizing systems on the potassium capacity of dark gray soil

2018 ◽  
Vol 2 (95) ◽  
pp. 35-41
Author(s):  
S.H. Korsun ◽  
A.V. Davydiuk ◽  
V.V. Hirnyk
Keyword(s):  
Crop Rotation ◽  
Soil Layer ◽  
Organic Fertilizers ◽  
Mineral Fertilizers ◽  
Systematic Application ◽  
Organic And Mineral Fertilizers ◽  
High Level ◽  
Different Doses ◽  
Gray Soil

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.

scholarly journals INFLUENCE OF SOIL TREATMENT ON THE NUMBER OF EARTHWORMS AND THE SIZE OF MICROBIAL BIOMASS UNDER THE CONDITIONS OF AGRICULTURAL INTENSIFICATION

2021 ◽  
Vol 33 ◽  
pp. 72-80
Author(s):  
Didenko N. O. ◽  
Konovalova V. M.
Keyword(s):  
Microbial Biomass ◽  
Crop Rotation ◽  
Cover Crops ◽  
Soil Layer ◽  
Fold Increase ◽  
Positive Influence ◽  
Soil Treatment ◽  
Irrigated Agriculture ◽  
Treatment Technologies ◽  
Traditional Technologies

Objective. To establish the influence of soil treatment methods on the number of earthworms and microbial biomass in dark-chestnut heavy loam soil with observance of the following crop rotation: soybean – winter wheat – corn; verify the hypothesis of the negative influence of traditional soil treatment technologies on the number of earthworms. Methods. Analytical, field, laboratory, system analysis, statistical. Results. During the studies conducted in 2018–2021 at Askanian State Agricultural Experimental Station of the Institute of Irrigated Agriculture of the NAAS, the positive influence of zero soil treatment technologies on the studied parameters versus with traditional technologies was established. A 2.5-fold increase in the number of earthworms and a 1.1-fold increase in microbial biomass was reported with zero soil treatment technologies. The interaction between soil treatment factors and cover crops in the structure of crop rotation was 23.7 %. Soil treatment technologies had a negligible influence on the size of microbial biomass — at the level of 1.4 %. The significance of the action of cover crops in crop rotation was 10.0 %. The experiment also showed a higher number of earthworms in the soil with zero soil treatment technologies with cover crops and traditional technologies for control, due to better live environment and favourable conditions for reproduction and distribution of the population depending on soil treatment technologies. Changes in the density of the soil layer 0–30 cm were within the measurement error (for zero soil treatment technologies the studied parameter was 1.23 g/cm3, for traditional — 1.24 g/cm3). Compaction of 0–20 cm soil layer with zero and traditional soil treatment technologies was reported. The content of soil organic matter by the years of studies under zero soil treatment technologies increased to 3.0 %, which is 1.2 times higher than with traditional technologies. Conclusion. Under the conditions of stationary field experiment the positive influence of zero soil treatment technologies on early changes of biological properties of soil, which were characterized by increase in number of earthworms and size of microbial biomass, has been established. The positive influence of cover crops on soil quality was determined, which was characterized by signs of biota activation in the 0–30 cm layer and improvement of biological and physical properties of the soil.

scholarly journals The changes in microbial biomass C and N in long-term field experiments

2008 ◽  
Vol 54 (No. 5) ◽  
pp. 212-218 ◽  
Author(s):  
J. Černý ◽  
J. Balík ◽  
M. Kulhánek ◽  
V. Nedvěd
Keyword(s):  
Microbial Biomass ◽  
Crop Rotation ◽  
Field Experiments ◽  
Microbial Biomass Carbon ◽  
Organic Fertilizers ◽  
Microbial Biomass C ◽  
Biomass Carbon ◽  
Microbial Biomass Nitrogen ◽  
Carbon And Nitrogen ◽  
C And N

Microbial biomass nitrogen and carbon were studied in long-term field experiments with continuous cultivation of silage maize and with crop rotation. A positive effect of organic fertilizers on the microbial biomass nitrogen and the carbon content in soil was observed. Statistically significant effect of organic fertilizers on the higher content of microbial biomass C and N was established in the first year after their application. During the application the content of microbial biomass carbon and nitrogen decreased, but there were higher biomass C and N contents compared to control, even without statistical significance. A negative effect on microbial biomass carbon and nitrogen content in soil came from the application of mineral nitrogen fertilizers in experiments with maize. Statistically significant effect of mineral N fertilizers was observed after their application. In the course of the N fertilizers application the content of microbial biomass carbon and nitrogen was lower than control. No statistically significant effects of mineral nitrogen fertilizers on the microbial biomass nitrogen and carbon content were observed in field experiments with crop rotation over the eight years of experiment duration. The higher effect of mineral and organic fertilizers application on the changes in microbial biomass C and N was reported in experiments with continuous cultivation of maize compared to experiments with crop rotation.

The effect of fertilization systems on the capacity of phosphates dark gray podzolized soil

2016 ◽  
Vol 1 (90) ◽  
pp. 49-52
Author(s):  
S.G. Korsun ◽  
А.V. Davidyuk ◽  
V.M. Yula ◽  
N.A. Panasiuk
Keyword(s):  
Crop Rotation ◽  
Soil Layer ◽  
Original Data ◽  
Organic Fertilizers ◽  
Mineral Fertilizers ◽  
Systematic Application ◽  
Organic And Mineral Fertilizers ◽  
Mobile Fraction ◽  
Gray Soil

Identify the features of changes in the factor of capacity of phosphates in the dark gray soil in long-term systematic application of different doses of mineral and organic fertilizers. Methods. Field, laboratory, mathematical and statistical. Results. By varying the intensity of fertilizer systems, it found that long-term (28 years) application of organic and mineral fertilizers contribute to not only stabilize but also the reproduction of the stock of mobile fraction of phosphates in the arable soil layer, compared with the original data (1987). The growth of mobile phosphorus 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 2011–2015 years – 213,8–326,4 kg of NPK per 1 ha on the background plowing crop by-products had a significant impact of changes in the factor of capacity of phosphates regime, ensuring the enrichment of dark gray soil available to plants mineral phosphates.

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