Scientific Journal of KubSAU

Polythematic online scientific journal
of Kuban State Agrarian University
ISSN 1990-4665
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261 kb

THE DURATION OF THE PRODUCTIVE USE OF SOWS AND ANALYSIS OF REASONS FOR CULLING

abstract 1341710042 issue 134 pp. 514 – 524 29.12.2017 ru 576
Nowadays, domestic pig production is dynamically changing in technological and selection terms and is one of the most effective sectors. In the current conditions of pig breeding in intensive technology, the requirements to the level and direction of pig production, the rational use of genetic resources are increasing. The development of effective methods for the production of pork on the basis of the wide use of highly productive breeds and types of both imported and domestic selection allows to obtain the maximum possible productivity of animals, to produce pork of good quality, to reduce the cost of production and to fully realize the genetic potential of animals. Genetic and selection techniques have significantly changed the physiological, morphological and productive capabilities of modern animals. In connection with this, the actual for the pig industry is the identification of opportunities to increase the duration of the use of pigs, and the inclusion of new indicators in breeding work when creating specialized maternal lines. The research was carried out on the electronic database (KP ACC, OOO "Selikom", Ryazan), the breeding center "Lozovoye" ZAO "Plemzavod-Yubileyniy" of the Tyumen region. The center is engaged in thoroughbred breeding and improvement of four pigs: large white, landrace, pietren, duroc
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INFLUENCE OF THE WAYS OF THE BASIC SOIL CULTIVATION ON AGRO-PHYSICAL PROPERTIES OF REGULAR BLACK SOIL AND YIELDS OF SUNFLOWER

abstract 1191605056 issue 119 pp. 778 – 789 31.05.2016 ru 575
The article presents the results of the researches on the study of the different systems of basic treatment of soil under sunflower’s density, aggregate composition, supplies of productive moisture on regular black soil of the Krasnodar region
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PREDICTIVE EVALUATION OF THE EXPECTED RICE YIELD IN THE KUBAN REGION IN 2016-2020

abstract 1201606083 issue 120 pp. 1250 – 1265 30.06.2016 ru 574
The article presents the analysis of variation of daily mean temperatures for the period 1977-2015. Clear tendency for their increasing in pre-sowing and especially in growing period is found. Heat supply of separate months in pre-sowing period increased in the row: April-February-January-December-March, and that of growing period – in a row: May-Juny-JulySeptember-August. Presence of slight correlation (from -0,256 to 0,268) of temperatures in winter-spring months with heat supply of coming spring summer months is found. It is shown that correlation of rice yield with temperatures of pre-sowing (DecemberApril) and growing (May-September) periods varies from weak to average (from 0,016 to 0,524) with a tendency to increasing from winter months to summer ones. Use of analog method made it possible to estimate roughly the nature of t upcoming growing season of rice in the current 2016: after the abnormally warm winter one should expect the value of heat supply of summer months to be close to normal. In the physiological sense, such distribution of summer temperatures is favorable for rice. Use of one of the most effective forecast methods – smoothing the time series (method of «moving decades») – made it possible to evaluate medium-term rhythms of heat supply of rice growing season and yields. It was found that after an abnormally high level of heat supply of the growing season, marked during last decade, we should expect a decrease in spring and summer temperatures - the next attack of the "cold" cycle. If this hypothesis is confirmed, then up to 2020, and later a natural tendency for decrease in rice yields, arising from the adverse factors of temperature, will continue which should also affect the economic efficiency of the industry as a whole
149 kb

REPRODUCTIVE, FATTENING AND MEAT QUALITIES OF YOUNG PIGS AT USING BOARS OF SPECIALIZED BREEDS AND TYPES

abstract 1221608005 issue 122 pp. 59 – 68 31.10.2016 ru 574
The optimal rations have been found. We have conducted a research on the assessment of meat productivity, biochemical blood tests. The chemical composition of blood and meat has been found. We have empirically chosen a content area for both chicks and adults of black African ostriches. The article shows a selection of optimal rations for feeding of ostriches; we have also determined the live weight of ostriches in groups, keeping the chicks safe in groups, hematological studies of ostriches blood, the chemical composition of the meat, the efficiency of premixes of Vitafel S
230 kb

CORRELATION AMONG QUANTITATIVE TRAITS OF SORGHUM GRAIN

abstract 1281704062 issue 128 pp. 931 – 940 28.04.2017 ru 571
At present, the farmers have to develop varieties and hybrids, which fully meet the requirements of agricultural production. The study of correlation among economic-valuable characteristics of grain sorghum is of great importance nowadays, as it allows optimizing plant-breeding work at its early stages. For a more productive process of developing of the initial material in breeding, it is necessary to determine the correlation among the traits to identify the strongest connections, and to conduct further work, based on the obtained data. Knowing the correlation, the estimation of timeconsuming economic trait can be replaced by the assessment of the simpler trait correlated with it. The article presents the analysis of correlation among various traits of grain sorghum. The degree and direction of the correlation have been estimated. The significant effect of the length of vegetation period on many traits has been seen. There have been also mentioned the characteristics, having an influence on a size and a number of kernels per panicle. There is a positive correlation between a size of panicle and dimensions of a leaf (length, width). Along with it there has been found a positive correlation among linier dimensions of a panicle, length and width of a leaf, a number of leaves with a number of kernels per panicle. While studying the correlation between an extension of a panicle with other traits, there has been noted a negative correlation between a length of vegetation period, length and width of a leaf, but there has been found a positive correlation with plant height. There has been found a positive effect of 1000-kernel weight, a number of kernels per panicle, a number of leaves and their dimensions on the formation of kernel weight per panicle
177 kb

LONG TERM 32-YEAR-OLD APPLICATION OF FERTILIZERS FOR THE FERTILITY OF THE ORDINARY BLACK SOIL AND PRODUCTIVITY OF SUGAR BEET

abstract 1171603088 issue 117 pp. 1341 – 1356 31.03.2016 ru 570
The article deals with the effectiveness of mineral and organic fertilizers in long-term application (for more than thirty years) according to the influence on the fertility of ordinary black soil of the Western Ciscaucasia and productivity of sugar beet. The investigations were carried out in the long-term stationary experiment laid on the experimental stationary section "Severokubanskaya agricultural experimental station" of P.P. Lukyanenko Krasnodar Agricultural Research Institute. The experiment was laid simultaneously in time and space in two ten-course crop rotations and combined grain-grass tilled. In the structure of sown areas sugar beet occupied 10% of crop rotation area and was placed after the winter wheat. During three rotations it was studied: 1- control without fertilizer with natural forming level of mineral nutrition; 2- minimal dose N21P26K16 3- medium dose N43P52K33 ; 4 - N43P52K33, 5- high dose N96P104K68; 6- organo-mineral system¹ N43P52K34 + 12 t/ha of manure; 7- organo-mineral system² N20P24K34 + II-III rotations tillage of straw crop + 6 t/ha of manure; 8- medium dose P52K33; 9- medium dose N43K33; 10- medium dose N43K52. The soil which is used by organo-mineral system with increased and high standards of mineral fertilizers had higher concentration of mineral nitrogen. Long systematic application of fertilizer had more noticeable effect on soil phosphorus regime. The provision of soil by exchange potassium tended to decline from rotation to rotation. If at the completion of the first rotation the content of this battery was at the level 362,0-433,0 mg / kg of soil, in 2010, these values were 356,0-405,0 mg / kg of soil, remaining at the level of increased and high provision characterized to ordinary black-soil. Fertilizers for crop rotation provided almost equal yield increase: in the first rotation - 4,9-16,0 t / ha in the second 5,3- 17,1, the third 6,1-15,5 t / ha. In the moderate favorable for moisture and temperature conditions during the first and third rotation (hydrothermal index 0,8- 0,76), the value of sugar beet yield was 30,1-46,1 and 35,7-52,1 t / ha, in comparison with tougher conditions for the second rotation (hydrothermal index 0,41- 1,96) higher up to 2,6-6,5 9,2-16,0 t / ha. Research carried out in long-term stationary experiment showed that long-term use of fertilizers prevents to the loss of soil organic substances, supporting the humus content at the level of 3.95-3.99%, and organicsystems contribute to its reproduction to 4,01-4,21%. soil nitrogen state is stabilized. However, there is a tendency of decrease of the exchange potassium in mineral fertilizer systems. In the conditions of insufficient moisture supply of the northern zone of Krasnodar region the most applicable norm is N60P90R60, both in mineral and organic-systems, ensuring the collection of root crops within 43,0-45,2 t / ha, with an estimated amount of sugar 6,92-7, 14 t / ha. The given systems of fertilizer provide the yield of root crops 53,3-56,0 t / ha with the synthesis of sugar 8,19-8,70 t / ha. Increasing the rate of fertilizer in 2 times from medium to N120P160R120 doesn’t increase the productivity, reduce sugar content of root crop to 0.4-0.8%. It is undesirable to use fertilizer that are unbalanced in nutrition elements in which root crops yield declines from 5.4 to 19.0%, and current biological sugar from 6,1 to 25,9%
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POULTRY MANURE AND ITS USE AS AN ORGANIC FERTILIZER

abstract 1281704061 issue 128 pp. 913 – 930 28.04.2017 ru 570
We have conducted a research on the poultry farm of the commodity farm of the educational and experimental farm Kuban of the Kuban State Agrarian University. The chemical analysis of various organic fertilizers is considered in the article. Also agrochemical characteristics of organic fertilizers are given. The composition and properties of the bird droppings of the farm under study were determined for comparison with other organic fertilizers: manure of cattle and pig manure. Since straw is used as the main moisture-absorbing material for composting in the farm under study, straw analyzes were carried out in terms of chemical composition and nutritional content. A chemical analysis of the content of plant nutrients in straw has been carried out. Bird droppings is valuable, a fast full fertilizer. Of all organic fertilizers, bird droppings are the most valuable, both in nutrient content and in their accessibility to plants. The nutrient content in the litter varies depending on the species of the bird, the breed, the age, the method of keeping and feeding, the type of feed and other factors. The chicken manure contains morephosphorus, nitrogen and potassium, than manure of cattle and pigs. The advantage of organic fertilizers in comparison with mineral fertilizers is their long after-effect. As fertilizer a bird droppings surpasses manure at 8-10 times and almost don't concede to equal amount of nutrients of mineral fertilizers by action on productivity of cultures. The norm of introduction of bird droppings is up to 30 times lower, than norm of introduction of manure. Agricultural areas where introduction of organic fertilizers, the list of crops under which fertilizers are introduced were considered. The received results confirm the value of organic fertilizers (bird droppings), and their application enriches the soil with necessary nutrients, increases productivity and quality of grown-up crops
297 kb

IMPLEMENTATION OF POTENTIAL PRODUCTIVITY OF THE OLD VARIETIES OF WINTER WHEAT

abstract 1151601051 issue 115 pp. 829 – 848 27.01.2016 ru 569
In the article, we discuss issues of morphological and physiological control over plants of winter wheat. As the object of the research, we have selected landraces - the population of winter wheat, which was grown on the territory of the Kuban region in the last century. The aim of this work was determination of the effect on the reproductive system of winter wheat varieties of factors such as conditions of cultivation and processing "Cecece 750" 1.5 l/ha D. V. crop retardant. To achieve this goal we have conducted a morphological analysis of the growth cone at the VI stage of organogenesis, which provide quantitative evaluation of potential future seed production of spike of winter wheat. To study the effect of the year of breeding on the reproductive system of winter wheat varieties the analysis of variance was calculated according to the scheme 3×7 factorial variability characteristic due to the influence of genotype (factor B), cultivation year (factor A), that is repeated in time is interpreted as the effect of the year conditions of cultivation. The influence of retardant on the reproductive system of winter wheat varieties was conducted using the analysis of variance on the above described scheme, 2×7, where the factor "A" is presented in two gradations (options, retardant treated and not treated), in this case, repeated for years was excluded as a factor. The result of researches indicates that the rate of realized productivity is variety-specific and can serve as a measure of the flexibility of the studied cultivars to different environmental conditions. The analysis of variance showed significant retardant effect on the realization of potential productivity in all variants of the crops of soft winter wheat. The comparison of the average general population indicates that the genetic potential of tall varieties may not manifest even in favorable for crop cultivation. The artificial reduction of plant height by inhibiting the growth of retardant is an effective way to identify high productivity of these genotypes as varieties of winter and Nemenchinskaya Old No. 346
169 kb

SOIL PRODUCTIVITY OF DRAIN AGROLANDSCAPES DEPENDING ON THEIR MELIORATIVE CONDITION

abstract 1331709110 issue 133 pp. 1249 – 1261 30.11.2017 ru 568
In the soils of rice fields, eluvial gley processes develop, which are manifested in redistribution of silty particles along the profile, water-soluble humus, mobile compounds of iron and phosphorus. Most intensively, these processes are developed in meadowbog soils, confined to closed depressions of the plains plain. Meadow-black soils lying on elevated relief elements have more favorable physical, physicochemical and oxidation-reduction properties for cultivating rice and accompanying crops in crop rotation. The highest yield of rice is formed on high checks and higher at 12,4 c/ha than on low ones
144 kb

SUPPRESSION OF FIELD THISTLE – CIRSIUM ARVENSE IN SUNFLOWER CROPS

abstract 1331709056 issue 133 pp. 735 – 744 30.11.2017 ru 567
The article presents the results of research in the field of suppression of thistle field Cirsium arvense in sunflower crops under different methods of tillage
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