scholarly journals Flesh or fish? First results of archaeometric research of prehistoric burials from Sakhtysh IIa, Upper Volga region, Russia

2013 ◽  
Vol 40 ◽  
pp. 57-73 ◽  
Author(s):  
Henny Piezonka ◽  
Elena Kostyleva ◽  
Mikhail G Zhilin ◽  
Maria Dobrovolskaya ◽  
Thomas Terberger
Keyword(s):  
Volga Region ◽  
Upper Volga ◽  
First Results ◽  
Prehistoric Burials

USE OF AGRO-RESOURCE POTENTIAL OF GRAY FOREST SOILS OF UPPER VOLGA REGION

2020 ◽  
Keyword(s):  
Forest Soils ◽  
Perennial Grasses ◽  
Organic Fertilizers ◽  
Volga Region ◽  
Winter Rye ◽  
Resource Potential ◽  
Field Crops ◽  
Upper Volga ◽  
Gray Forest Soils ◽  
Winter Cereals

The results of long-term research on the influence of main indicators on their agro-resource potential are summarized on gray forest soils of the upper Volga region. For the conditions of the Vladimir Opolie, the probable yield of biomass and the main products of field crops were calculated at different coefficients ofphotosynthetic active radiation (FAR) use. Calculations of the main product yields are made taking into account the distribution of biomass to by-products and crop-root residues. For field crops of the studied crop rotations, the coefficients of precipitation utilization are estimated. They varied from 44 to 71%, depending on the crop rotation culture. On the slope of the southern exposure when cultivating winter cereals and perennial grasses, the main moisture losses were observed in the spring during snowmelt, when growing spring crops and potatoes, they were close in the autumn and spring periods. The sizes of moisture use by crops depending on the fertilizer systems for the creation of 1 C of grain units (g.u.) and from sub-arable layers are determined. In comparison with the liming background, the use of organic fertilizers reduced the water consumption coefficient from 9.6 to 8.5 mm/C g.u., their combination with a single dose of NPK - up to 7.3, and with a double dose - up to 6.8 mm / C g.u. Based on the amount of moisture used by crops, their possible yields are calculated. In spring crops, the amount of precipitation consumed (326-356 mm) corresponds to the use of 2.7-3% of the FAR and provides 54-60 C/ha of grain, in winter rye and wheat - about 4% of the FAR (yield 71-80 C/ha). In perennial grasses for 2 mowing, the moisture consumed is enough to use about 3% of the FAR., in potatoes -1.5%.

PRODUCTIVITY OF SPRING WHEAT DEPENDING ON GROWING CONDITIONS

2020 ◽  
Keyword(s):  
Growth Regulators ◽  
Economic Efficiency ◽  
Spring Wheat ◽  
Mineral Nutrition ◽  
Photosynthetic Activity ◽  
Volga Region ◽  
Mineral Fertilizers ◽  
Biological Products ◽  
Upper Volga ◽  
The Upper Volga Region

Spring wheat is the main grain crop. Stable production of high-quality wheat grain is the key to the country's food independence. Therefore, the study of the elements of growing spring wheat technology, aimed at increasing the productivity of crops, is important. The study of the interaction of plants and microorganisms depending on the level of mineral nutrition in crop planning is currently ofparticular relevance. The use of biological products, growth regulators improves the mineral nutrition of plants, increases productivity and its quality, and also provides savings in mineral fertilizers. In the upper Volga region, the main spring crops are wheat, barley and oats. To further increase them in the region, it is necessary to study the characteristics of the formation of yields and determine the most productive crops depending on the level of nutrition, biological products and growth regulators. The scientific article presents the results of the study of these drugs on the productivity of spring wheat. In field experiments, it was planned to get 30, 40 and 50 tons of grain per hectare. Fertilizers for the planned harvest were made taking into account the agrochemical properties of the soil. From biological products used Flavobacterin, which has a protective effect against diseases and improves product quality, from growth regulators used agrochemicals HUMATE + 7 (10 % liquid concentrate), which is characterized by high biological activity. The yield level was determined taking into account the average long-term moisture supply and qualitative assessment of arable land. The indicators of photosynthetic activity of crops, crop and its structure, quality characteristics of grain and economic efficiency of growing spring wheat in the upper Volga region are presented. As a result of researches the optimum level of mineral nutrition for wheat, the efficacy of agrochemical diazotroph and programming yields of spring wheat, determined the photosynthetic activity of crops and grain yield, calculated economic efficiency of the studied techniques and established the qualitative characteristics of the crop. The program for obtaining the planned wheat yields in the years of the experiments was completed by 68-91 %. Close to the planned the program was implemented using a biological product and growth regulator-74-91 %.

Structural and functional characteristics of the bacterioplankton of rivers flowing through a large city (Cherepovets, Upper Volga Region)

2016 ◽  
Vol 43 (10) ◽  
pp. 1350-1356 ◽  
Author(s):  
A. I. Kopylov ◽  
T. V. Ievleva ◽  
A. V. Romanenko ◽  
E. A. Zabotkina
Keyword(s):  
Large City ◽  
Volga Region ◽  
Functional Characteristics ◽  
Upper Volga

Productivity of binary herbage based on non-traditional forage crops in the Upper Volga region

2021 ◽  
Author(s):  
N. V. Shmeleva ◽  
Keyword(s):  
Species Composition ◽  
Sugar Content ◽  
Field Studies ◽  
Volga Region ◽  
Forage Crops ◽  
High Sugar ◽  
Upper Volga ◽  
High Sugar Content ◽  
The Upper Volga Region

The article presents the results of field studies aimed at expanding the species composition of herbs and the search for adaptive cereals with a high sugar content in the Upper Volga region in 2015-2020.

scholarly journals CHANGES IN THE COMPOSITION OF POLY-SPECIESSOWINGS OF FODDER CROPS BY YEARS AND THEIR PRODUCTIVE LONGEVITY UNDER THE UPPER VOLGA REGION

2020 ◽  
Vol 2020 (1) ◽  
pp. 45-62
Author(s):  
Sabir Esedullaev
Keyword(s):  
Volga Region ◽  
Upper Volga ◽  
Fodder Crops ◽  
The Upper Volga Region

Представлены результаты многолетних исследований по изучению характера годовых изменений структуры поливидовых посевов кормовых культур, их густоты, ботанического состава и продуктивное долголетие на потенциально бедных дерново-подзолистых почвах. Установлены годовые изменения плотности травостоя поливидовых посевов клевера и люцерны со злаковыми травами, в том числе и такой нетрадиционной для области как фестулолиум. Выявлено, что наивысшая плотность травостоя клевера наблюдается на второй год хозяйственного использования — 490 шт. стеблей на 1 м2 на контроле и 536 шт. на фоне минерального питания, с годами она резко снижается, а у люцерны изменчивой она остается высокой, значительно не меняясь. В смешанных посевах с клевером его доля снижается от первого года пользования к четвертому от 63,1–75,1% до 15–26%, а у люцерны изменчивой, напротив, увеличивается с 35,2–43,0% до 80,5–85,5%. Максимальные показатели продуктивности массы, сбалансированной по питательным веществам, обеспечивают смеси клевера и люцерны с фестулолиумом — соответственно 6,49 и 9,29 т/га сухого вещества, 5,83 и 7,65 тыс./га кормовых единиц, 654 и 1103 кг/га переваримого протеина на контроле и соответственно 7,6, 6,94, 690 и 9,89, 8,73, 1160 на фоне минерального питания. Сахаропротеиновое отношение по мере старения посевов снижалось, близким к норме оно было на контроле у клевера с фестулолиумом — 0,75, на фоне минерального питания — у клевера с фестулолиумом и райграсом — 0,82 и 0,88 соответственно.

scholarly journals Soil salinization processes in the impact zone of mineralized water discharge by the case study in the Yaroslavl Volga region, Russia

2020 ◽  
Vol 65 (4) ◽  
Author(s):  
Yulia V. Simonova ◽  
◽  
Alexey V. Rusakov ◽  
Elena A. Korkina ◽  
◽  
...  
Keyword(s):  
Water Discharge ◽  
Volga Region ◽  
Saline Soils ◽  
Impact Zone ◽  
Humid Climate ◽  
Upper Volga ◽  
Mineralized Water ◽  
Saline Waters ◽  
Salt Affected Soils ◽  
The Impact

Humid conditions do not encourage the formation of salt-affected soils enhancing leaching salts out of soil profiles. Nevertheless, the occurrence of salt-affected soils under humid climate is evident as a result from another factors but not the climatic one. Soil salinity in these landscapes is caused by anthropogenic salinization. The objective of this study was to identify types of chemical composition and salinity level of soils forming within the impact zone of artesian water discharge. This paper also provides determining the degree of contrast to adjacent non-saline soils and salt contamination boundaries. Soil and water samples were collected from three sites located in the Yaroslavl’ region, the Upper Volga. Sampling was released in June 2017. In the Upper Volga region high-mineralized water rises from saline aquifers via abandoned exploration wells drilled in the 1960s. These soils are found under an average annual rainfall of about 500-700 mm in taiga zone. This type of climate and vegetation cover normally should lead to the formation of Albic Retisols. Saline waters affecting soils are dominantly Na-Cl or Ca-Na-Cl-SO4 brines. Total dissolved solids in the saline waters range from 10000 to 259500 mg·L-1. Salt-affected soils have from low to high salinity (0,1-0,8%) but salt content does not exceed 1%. In the study areas maximum of salinity in the soils investigated was fixed near the water table or was associated with lithic discontinuity or abrupt textural change. Salt leaching from the upper horizons prevails in the course of annual cycle and that is what differs them from hydromorphic saline soils formed in arid climate. Field electrical surveys of salinity indicated the local zones of salinization. The salinization phenomenon in humid climate is not of the main pedogenic processes but the additional process. The upper horizons of salt-affected soils tend to have similar morphological features to zonal and intrazonal soils. The salt-affected soils studied were classified according to WRB as Orthofluvic Fluvisol (Humic, Loamic, Endosalic, Technic), Orthofluvic Gleyic Fluvisol (Humic, Siltic, Endosalic, Raptic), Amphistagnic Albic Retisol (Siltic, Anoaric, Cutanic, Endosalic), Albic Retisol (Siltic, Anoaric, Cutanic, Endosalic, Raptic).

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