scholarly journals FODDER GRASSES CULTIVATION UNDER SUBSURFACE DRIP IRRIGATIONON LIGHT CHESTNUT SOILS IN CASPIAN REGION

2018 ◽  
Vol 37 (4) ◽  
pp. 10-14
Author(s):  
G. K. Bulakhtina ◽  
◽  
A. F. Tumanyan ◽  
А. V. Kudryashov ◽  
N. I. Kudryashova ◽  
...  
Keyword(s):  
Caspian Region ◽  
Chestnut Soils ◽  
Subsurface Drip ◽  
Fodder Grasses

scholarly journals STRUCTURE OF CEREAL-LEGUME HERBALS WITH DIFFERENT METHODS OF SOWING AND IRRIGATION IN ARID CONDITIONS OF THE LOWER VOLGA

2022 ◽  
Vol 16 (4) ◽  
pp. 19-23
Author(s):  
Natal'ya Kudryashova ◽  
Galina Bulahtina ◽  
Aleksandr Kudryashov ◽  
Andrey Hyupinin
Keyword(s):  
Drip Irrigation ◽  
Maximum Yield ◽  
Sprinkler Irrigation ◽  
Caspian Region ◽  
Wide Spread ◽  
Irrigation Methods ◽  
Lower Volga ◽  
Arid Conditions ◽  
Subsurface Drip ◽  
Periodic Flooding

In recent years, livestock farms in the Astrakhan region have mainly used grasses from natural hayfields and pastures for fodder. But, due to the sharp aridization of the climate, and, as a consequence, the more frequent droughts, as well as the unregulated growth of the number of animals on farms, the reserves of natural herbage are often insufficient. Therefore, the region began to increase the area of sown hayfields for irrigation. The aim of the work is to study the effect of various irrigation methods on the productivity of cereal-leguminous mixtures with multi-cut use in the conditions of light chestnut soils of the Northern Caspian region. The studies were carried out in 2017-2020 in the Astrakhan region. All studied irrigation methods (sprinkler irrigation, drip irrigation with a belt laying depth of 0.0, 0.15, 0.25, 0.35 and 0.45 m, periodic flooding), with the exception of subsoil irrigation, with an ordinary method of sowing contributed to the development of both cereals and legumes. In these variants of the experiment, cereals occupied a significant part in the total herbage - from 40.0 to 61.0%. When using the spread sowing method, only in one variant, the share of cereal grasses was 54.0% (periodic flooding). In all others with this method of sowing, the amount of cereals in the total mass was insignificant, or they were completely absent. The widespread method of sowing was also the most productive in all the years of research. The maximum yield in the experiment was noted in all variants of the experiment in the third year of the life of grasses in 2019.The highest productivity with the spread method of sowing was noted in 2019 in the variants of the experiment with a belt laying depth of 0.25, 0.35 and 0.45 m and amounted to 98.1, 104.4 and 111.0 t/ha, respectively. In the variants with the row-sowing method, the yield was lower than with the wide-spread one. The highest yield with this method of sowing was also noted in 2019 in variants with subsurface drip irrigation with a belt laying depth of 0.35 and 0.45 m and amounted to 105.5 and 104.8 t/ha, respectively

THE CONCEPT OF THE BALTIC-BLACK SEA ARC AND UKRAINIAN FOREIGN POLICY (1990 - EARLY 2000)

2020 ◽  
pp. 89-108
Author(s):  
Alexandr S. Levchenkov ◽  
Keyword(s):  
Economic Development ◽  
Foreign Policy ◽  
Black Sea ◽  
The Black Sea ◽  
Caspian Region ◽  
Soviet Space ◽  
The Baltic ◽  
Political Economic ◽  
Eastern Baltic ◽  
Post Soviet Space

The article analyzes the influence of the concepts of the Intermarium and the Baltic-Black Sea Arc on the formation of Ukraine’s foreign policy in 1990 – early 2000. The use of these concepts in American, European and Ukrainian geopolitical thought, which historically included the idea of opposing Russian influence in the region, contributed to the increase in tension and was aimed at further disintegration of the Western flank of the post-Soviet space. The article proves that the design of the Euro-Atlantic vector of Ukraine’s foreign policy was already active under the first two Ukrainian presidents – Leonid Kravchuk (1991–1994) and Leonid Kuchma (1994–2005). One of the concrete attempts to implement the idea of forming a common political, economic, transport and logistics space of the Black Sea-Caspian region with a promising expansion of the cooperation zone to the whole of Eastern Europe and the Eastern Baltic during the presidency of Leonid Kuchma was the foundation and launch of a new regional organization, Organization for Democracy and Economic Development, better known as GUAM (composed by the initial letters of names of member states – Georgia, Ukraine, Azerbaijan, Moldova; when Uzbekistan was also a member of Organization for Democracy and Economic Development, the name of the organization was GUUAM), which is an alternative to Eurasian projects with the participation of Russia.

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