scholarly journals Quality of the different multicomponent feed mixtures on irrigated lands of the dry steppe zone of the Volga region

2018 ◽  
Vol 176 (4) ◽  
pp. 141-145
Author(s):  
V.A. Shadskikh ◽  
◽  
V.O. Peshkova ◽  
V.E. Kizhaeva ◽  
◽  
...  
Keyword(s):  
Steppe Zone ◽  
Volga Region ◽  
Dry Steppe ◽  
Irrigated Lands

Population density and total biomass of microbial communities in chestnut soils and solonetzes of the dry steppe zone in the Lower Volga region

2015 ◽  
Vol 48 (3) ◽  
pp. 294-302 ◽  
Author(s):  
N. N. Kashirskaya ◽  
T. E. Khomutova ◽  
E. V. Chernysheva ◽  
M. V. El’tsov ◽  
V. A. Demkin
Keyword(s):  
Population Density ◽  
Microbial Communities ◽  
Steppe Zone ◽  
Volga Region ◽  
Total Biomass ◽  
Lower Volga Region ◽  
Chestnut Soils ◽  
Lower Volga ◽  
Dry Steppe

Influence of different factors on the growth rate of young animals and the quality of beef

2021 ◽  
pp. 28-39
Author(s):  
V. N. Pristupa ◽  
D. S. Torosyan
Keyword(s):  
Experimental Studies ◽  
Live Weight ◽  
Federal District ◽  
Steppe Zone ◽  
Industrial Complex ◽  
Black And White ◽  
Dry Steppe ◽  
Intensive Rearing ◽  
Meat Productivity

The purpose of the work was to study and identify the main factors aff ecting the quantity and quality of beef produced and sold in the Southern Federal district. A comparative assessment of the growth, development, formation of meat productivity and quality of beef of young animals of beef, dual and dairy breeds with stall-pasture technology and intensive rearing in the industrial complex. Experimental studies have been carried out in farms in the Rostov region. The object of research was cows with calves of Kalmyk, Hereford, Aberdeen-Angus, Russian komolaya, Kazakh White-headed breeds, as well as young animals of the same breeds, in addition, Black-and-White and Swiss breeds. Removable live weight in Hereford steers at 18 months of age was 658,0 kg, and Aberdeen-Angus – 655,2 kg. Domestic steers of Kalmyk were 41–44 kg lower in live weight than their herdmates of two imported breeds. However, with intensive rearing at 18 months of age, steers of Kalmyk breed had a removable live weight of more than 613,7 kg and a carcass weight of 326 kg. The yield of hot carcass was 55,4 %, and the slaughter yield was 58,89 %, which was only 1–2 % lower than the world’s leading beef breeds. It has been found when analyzing the results of boning the half-carcasses of experimental steers that the biggest weight of half-carcasses and the content of muscle and fat tissue in them in absolute terms were in Hereford steers. Steers of Kalmyk breed took the third place in terms of weight of large-sized semi–fi nished products and signifi cantly lost to Aberdeen-Angus herdmates by 7,3 kg or 6,5 %, and Hereford steers by 9,2 kg or 8,3 %. The results obtained prove the expediency of using stallpasture technology in the dry-steppe zone of the Southern Federal district when rearing young animals for beef up to 350–400 kg live weight at 15 months of age and its subsequent intensive rearing under industrial technology, in order to obtain the live weight of more than 570 kg and produce cost-eff ective beef.

scholarly journals The Effect of Prolonged Irrigation on the Dry Steppe Soils’ Fertility in the Volga Region

2018 ◽  
Vol 7 (4.38) ◽  
pp. 1210
Author(s):  
Nina Anatolyevna Pronko ◽  
Viktor Vladislavovich Korsak ◽  
Lubov Gennadievna Romanova ◽  
Aleksey Vladimirovich Kravchuk ◽  
Vladimir Viktorovich Afonin
Keyword(s):  
Organic Matter ◽  
Chestnut Soil ◽  
Steppe Zone ◽  
Organic Fertilizers ◽  
Nitrogen Fertilizers ◽  
Volga Region ◽  
Irrigated Agriculture ◽  
Qualitative Composition ◽  
Dry Steppe ◽  
Irrigated Soils

The article deals with the negative effect of the prolonged irrigation on the contents and quality of humus, and plant nutrients’ stock in the soil. The research was aimed at studying the nature and regularities of the transformation of organic matter (humus) and nutrients in the dark chestnut soil of dry steppe zone in the Volga region in the process of irrigation over half a century long. Field and laboratory experiments, as well as theoretical methods, such as mathematical statistics were used for studying the soil agrochemical properties. The research has shown that humus mineralization in irrigated soils is more pronounced, compared to nonirrigated soils, dehumification increases with increasing the period of irrigation and intensification of agriculture; the content and stock of humus decreases with irrigation, and is accompanied by the negative changes in its qualitative composition. The article describes the reasons for dehumification and negative changes in the qualitative composition of humus in the dark chestnut soils: deficient nitrogen balance due to insufficient use of nitrogen fertilizers, which resulted in the destruction of the organic matter in the soil, increased share of tilled crops in the crop structure, absence of nitrogen-fixing ability in alfalfa due to significant soil compaction, and insufficient introduction of organic fertilizers. The found peculiarities of dehumification and reduction of nutrients availability in the soil, which are the most dangerous degradation processes in the soils of the region that reduce the efficiency of irrigated agriculture, are required for developing substantiated solutions for preventing dehumification, restoring the fertility of irrigated soils, and reducing deficiency of foodstuffs in arid regions.  

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