scholarly journals Indicators of optimal soils conditions for crop growing and preserving soil fertility in Rostov region and North Caucasus under irrigation conditions

2019 ◽  
Vol 135 ◽  
pp. 01086 ◽  
Author(s):  
Viktor Zhurba ◽  
Nadezhda Gordeeva ◽  
Irina Mehantseva ◽  
Alina Golubeva ◽  
Yana Kabanova ◽  
...  

The tasks of agrotechnical and land-reclamation techniques in creating favorable conditions for the agricultural crops growth are determined. Maintaining high soil fertility and good land-reclamation. Soil fertility model with optimal indicators providing a combined expanded reproduction of soil fertility is proposed. Main indicators of potential soil fertility are considered. Indicators and properties of soils are captured, the relationship between plant productivity and soils quality is made. The adverse soil properties of the North Caucasus that include alkalescency and alkalinity are determined. Complex of agrotechnical and land-reclamation techniques for improving adverse soils is proposed.

2018 ◽  
Vol 931 ◽  
pp. 1019-1024
Author(s):  
Vitaliy A. Shapovalov

This paper presents the developed program-mathematical software for receiving, archiving, analysis and display of radar, lightning and satellite data on clouds and precipitation, interfacing of meteorological information. The program of processing of meteorological information "GIMET-2010" is established on a network of weather radars DMRL-C of the Russian Federation. An automated system combining radar and lightning detection system information applies to the command posts of the uniformed services on the fight against hail and centers of severe storm warning. Following items are provided: a receiving and transmitting to consumers the operational radar data on the actual weather; the detection, identification, and warning of hazardous weather phenomena for airports and populated areas; measurement of the intensity and amount of precipitation for agriculture, hydrological forecasts and land reclamation; obtaining precipitation map for agriculture and insurance companies.


2015 ◽  
Vol 20 (2) ◽  
pp. 52-54
Author(s):  
A. T Podkolzin ◽  
D. E Kurochkina ◽  
G. A Shipulin

In the work there was performed an analysis of the indices of recorded incidence of rotavirus infection (RVI) in the territory of 40 subjects of the Russian Federation for the period 2008-2012. For the identification of the monthly peak of the incidence there was evaluated the temporal distribution of the relative indices of the RVI incidence within each subject of the observation. There was revealed the independent beginning of the winter-spring seasonal rise of the RVI incidence in three groups of territories of the Russian Federation (1 - Kirov, Kostroma, Nizhny Novgorod region; 2- Republic of Khakassia, Kemerovo region; 3 - Amur region). In the territory of the South and the North Caucasus Federal District (Krasnodarsky and Stavropolsky Krai, Rostov region) there was noted the second, summer-autumn seasonal rise in the RVI incidence. The obtained data provide an overview of the seasonal-geographical distribution of the RVI incidence in the territory of Russia in conditions of the absence of the use of rotavirus vaccines


Author(s):  
В.Д. ДЗИДЗОЕВ

В статье рассматриваются взаимоотношения между Грузией и Осетией, которые складывались на протяжении многих веков, начиная с древ- нейших времен. Особенно интенсивными были взаимоотношения в средневеко- вый период. Основное внимание уделено стратегическому и геополитическому значению перевальных дорог между Северным Кавказом и Закавказьем, которые известны по древним письменным источникам. The article deals with the relations between Georgia and Ossetia, which were formed over many centuries, starting from the ancient period. The relationship in the medieval period was particularly intense. The focus is on the strategic and geopolitical signifi cance of the pass roads between the North Caucasus and Transcaucasia, which are known from ancient written sources.


Author(s):  
A.H. Adzhiev ◽  
G.V. Kupovykh ◽  
R.A. Gyatov ◽  
Z.M. Kerefova

For study the relationship between number of days with a thunderstorm recorded by weather stations and duration of thunderstorms in hours for these days, instrumental observations of the thunder direction-finding network of High-Mountain Geophysical Institute were used. We used data on thunderstorms in the North Caucasus for a long-term observation period in 2008-2019. Based on these data, they are grouped for various territories for analysis: the number of days with thunderstorms per month, per year, and the duration of thunderstorms per month and per year. A correlation analysis was performed between the number of days with thunderstorms and the duration of thunder-storms in hours according to LS 800 data. Thus, the dependence of the number of days with thunderstorms on the duration of thunderstorms is clearly traced - with an increase in the number of days with thunderstorms per year, the observation point increases in direct proportion to the duration of thunderstorms per year. With an increase in the number of days with thunderstorms on a given territory by one day, for the month in question, the duration of thunderstorms increases by 3.89 hours.


2021 ◽  
Author(s):  
Olga L. Tretyakova ◽  
Anna S. Degtyar ◽  
Victoria S. Solonnikova

Studies of relative variability make it possible to forecast the future. The equations of rectilinear and multiple regression make it possible to determine a productive indicator by indirectly evaluating correlatively related features. We developed mathematical modelson the relative variability in the signs of reproductive fitness of pigs in the breeding factories of the North Caucasus: “Ventsy-Zarya”, “Gulkevichsky”, “Kavkaz” and “Zarya” of the Krasnodar Territory, “Rossiya” of the Stavropol Territory, and “Rossiya” of the Rostov region. We analyzed the correlations of reproductive fitness in these breeding farms to determine a reliable and objective assessment of cause-and-effectdependencies, and the values, nature and direction of their action. Significant differences were established between the nature of relations in various breeding farms; however, their action vectorscoincided. The models we developed take into account all of the processes occurring in the population under the influence of tribal selectionand can be used in the planning of breeding measures. Keywords: pig breeding, relative variability, correlation, regression, breeding index


2020 ◽  
pp. 18-22 ◽  
Author(s):  
E. V. Ionova ◽  
V. A. Likhovidova ◽  
I. A. Lobunskaya

The current paper has considered the following issues: determination of the drought phenomenon and its classification (atmospheric, soil and combined), drought harmfulness and spread in the Russian Federation. It has been established that regional droughts have specific features, namely soil or atmospheric, spring, summer or autumn. There has been given a classification by intensity and coverage of territories by droughts (very strong, strong, medium and weak). There has been shown a response of agricultural plants to various types of droughts. The northwestern and southeastern droughts (the second type) negatively affect the plants, as they combine low air humidity and soil with high temperature. There has been given a partial characteristic of the climate of the North Caucasus region (on the example of the Rostov region). The most used indicators of meteorological research are Selyaninov’s hydrothermal humidity factor (HHF) which is the ratio of the amount of precipitation for a period of at least a month to the sum of temperatures above 10 °C for the same period, reduced by 10 times. The classification of humidification zones according to the HHF is as follows: wet (1.6–1.3); slightly arid (1.3–1.0); arid (1.0–0.7); very arid (0.7–0.4); dry (<0.4). The data of the HHF are given on the example of meteorological conditions of the Zernograd district of the Rostov region (the years of 2001–2015). It has been found that in 2001–2015 the hydrothermal humidity factor over the autumn period was 0.13–0.17 (dry) on average, and the HHF of the summer period was 0.28 (dry). During the studied period, the hydrothermal factor during the growing season was 0.78 (dry) on average. Thus, for the period 2001–2015, the conditions for plants growth and development were unfavorable.


2013 ◽  
Vol 46 (1) ◽  
pp. 167-178 ◽  
Author(s):  
Andrew Foxall

Much recent literature in cultural, political and social geography has considered the relationship between identity, memory, and the urban landscape. This paper interrogates such literature through exploring the complex materialisation of memorialisation in post-Soviet Russia. Using the example of the statue of General Alexei Ermolov in Stavropol’, an analysis of the cityscape reveals interethnic tensions over differing interpretations of the life and history of the person upon whom the statue is based. The existence of a rich literature on Ermolov and the Russian colonial experience in the North Caucasus helps to explain this. The symbolic cityscape of Stavropol’ plays an important role in interethnic relations in the multi-ethnic city; it is both an arena through which Russian identity is communicated with people and produced and reproduced, and an arena through which Russian citizens compete with each other for authority on historical narratives that operate at and between a number of scales. People’s readings of the cityscape can reveal much about power and space in contemporary Russia.


Author(s):  
A.V. Titova ◽  
V.I. Golik2

The priorities for the development of the industrial complex are to compensate for market risks by dispersing activities into several types of business with the development of new products, the cost of which is reduced due to the use of the existing infrastructure. The prospects of mining enterprises of the North Caucasus in the implementation of production diversification are outlined. The results of substantiating the effectiveness of diversification at various volumes of ore mining in the conditions of the unprofitable Sadonsky lead-zinc plant with a graphical interpretation of economic calculations are given. The results of calculating the efficiency of involving substandard technogenic ores in the development, obtained by comparing alternative options that differ in the size of reserves, are given. An equation for the balance of values is proposed, which establishes the relationship between the volume of production and the completeness of extraction of reserves of deposits during the development of reserves of substandard ores and wastes. To assess the effectiveness of actions during diversification, an integral indicator of flexibility is proposed and the method of marginal analysis is used to reduce the uncertainty of situations. A graph of the relationship between the volume of ore production, economic indicators and the break-even point is shown. Okha-characterized the mineral resource base of diversified enterprises and diversification products for consumption by related industries. It is shown that the diversification of the ore mining complex is still a little used reserve for the development of the economic system of the depressive type.


2021 ◽  
Vol 3 (45) ◽  
pp. 4-4
Author(s):  
Alexander Saakian ◽  
◽  

The paper proves the need to clarify the agroecological assessment of soils, taking into account the migration of substances, the non-exchange fixation of biophilic elements by the soil, the relationship between the properties of soils, the intensity and speed of soil-forming processes, and the manifestation of the law of decreasing fertility. It is shown that on well-cultivated sod-podzolic soils of the Moscow region, the losses of elements with high water and ground water averaged 19.3 and 6.9 kg/ha of N-NO3, 0.7 and 1.2 N-NH4 in the crop rotation. Losses with surface-runoff waters were: nitrogen-2.2 kg / ha, potassium-7.0; calcium-11.0; magnesium-6.0; phosphorus-0.9 kg / ha per year. When the Ca/K ratio in the soil solution of this soil was 0.44±0.03 and 2.7±0.1, the content of water – soluble iron was 57.9±7.4 and 5.3±0.7 mg/l, respectively; manganese-2.3±0.4 and 1.1±0.2 mg/l. It is shown that plants consume biophilic elements from different soil horizons, which must be taken into account in the balance of biophilic elements. It is shown that the optimal soil properties differ depending on the hydrothermal conditions of the territory, the combination of soil properties. It is proved that in order to choose the optimal crops for growing on certain soils, it is necessary to take into account the alienation of energy with the crop. Keywords: SOIL FERTILITY, FERTILIZERS, BALANCE, ECONOMIC EFFICIENCY


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