Scientific Journal of KubSAU

Polythematic online scientific journal
of Kuban State Agrarian University
ISSN 1990-4665
AGRIS logo UlrichsWeb logo DOAJ logo
Search by author's name Search by title
179 kb

YIELD AND SEEDS QUALITY OF RICE VARI-ETIES UNDER DIFFERENT LEVELS OF MIN-ERAL NUTRITION IN CONDITIONS OF THE PRIAZOVIE MARSHES

abstract 1501906018 issue 150 pp. 168 – 181 28.06.2019 ru 417
CJSC Priazovskoye located in the Slavyansk district is in the area of the Priazovie marshes. Soil and climatic conditions make it possible to grow many heat-loving crops including rice. The farm specializes in the cultivation of rice and the production of meat and cattle dairy products. The rice system is divided into 8-crop rotations, where, in addition to rice, animal feed is grown. Livestock waste is used as organic fertilizer in the fields of crop rotation. In the field experiment with perennial grasses (alfalfa) as predecessor, the change in yield and seed quality of three rice varieties Rapan, Diamant and Flagman was studied. The rates of the applied fertilizers were: phosphorus 100 kg/ha, potassium 60 kg/ha and increasing rates of nitrogen from 30 to 120 kg/ha. It has been established that the optimal rates of nitrogen fertilizers after alfalfa are 90 kg/ha (a.i.) for Rapan and Diamant varieties and 60 kg/ha (a.i.) for Flagman. At the same time, the maximum grain yield was obtained for Rapan - 7.45 t/ha, Diamant - 8.27 t/ha, Flagman - 7.62 t/ha , and the best seeds were formed in terms of germination and emergence. Analysis of the crop structure of rice varieties showed that with increasing rates of nitrogen the productive tillering and grain mass per panicle increased. With the nitrogen rate higher than the optimum, the number of unfilled grains per panicle and the grain /straw ratio have increased. Based on this analysis, it can be considered that the number of unfilled grains per panicle and the grain /straw ratio can serve as indicators of the response of rice plants of these varieties to an excess of the optimal level of mineral nutritions
650 kb

SIMULATION OF ATMOSPHERIC VORTEX FLOWS ON JUPIER AND SATURN

abstract 1261702050 issue 126 pp. 698 – 722 28.02.2017 ru 418
Atmospheric currents on Jupiter and Saturn are characterized by turbulence and complex vortex structure, which is caused by a large angular speed of the gas giants. In this paper we consider two types of eddy currents - for hexagonal in the northern polar region of Saturn and the Great Red Spot in the equatorial region of Jupiter. For the numerical simulation of turbulent flows of this type the model of the planetary boundary layer was developed by the author. In both cases, the main strengthening mechanism is associated with geostrophic flow of small amplitude interacting with the planetary turbulent boundary layer. For hexagonal Saturn with its characteristic length scales and speed - 120 m / s and 14,500 km, respectively, there are more than 35 years data of observation. We have found that a small axial symmetry violation geostrophic flow in the shear causes the development of a hexagonal pattern in a turbulent boundary layer. In addition, under the influence of the Coriolis force and the eddy viscosity gradient in the turbulent boundary layer there is the jet formed, pressed against the lower edge of the layer. Great Red Spot on Jupiter has the characteristic velocity and length scales - 150 m / s, 14,000 km from north to south and 24000-40000 km from west to east, there are already more than 350 years data. It identified another mechanism of formation of vortex flow, coupled with the strengthening of small amplitude zonal flow in a turbulent boundary layer with the eddy viscosity gradient and the volume turbulent viscosity on a rotating planet. Both mechanisms are confirmed by numerical calculations of non-stationary planetary boundary layer
219 kb

INFLUENCE OF MINERAL FERTILIZERS ON PRODUCTIVITY OF MERLO TECHNICAL GRADE IN THE CONDITIONS OF ANAPA-TAMAN ZONE

abstract 1311707129 issue 131 pp. 1571 – 1586 29.09.2017 ru 418
The article reviews the results of studying the influence of mineral fertilizers on the uvological, yielding and qualitative indices of the Merlot grape variety in the Anapo-Taman zone of the Krasnodar region. The technology of cultivation of grapes on the experimental plot was performed in accordance with the accepted for the given zone and culture. Agrobiological work was carried out at the optimal time and had a high quality of execution. Grape bushes were laid in a 3.0 x 2.0 m pattern. Formation - a two-shoulder horizontal cordon. On the bushes, there was formed the same load shoots and bunches. Scheme of experience: option 1 – no fertilizers (control); option 2 - superphosphate with a mixture of potassium salt (P90K90) from the autumn; option 3 – nitroammofoska (N120P120K120) from autumn; option 4 – ammonium nitrate (N60) in early spring. Analysis of the results of the studies on the study of biological features of growth, fruiting, yield and quality of Merlot grape varieties on the background of the use of mineral fertilizers shows their high efficiency in the conditions of the Anapo-Tamanskaya zone of the Krasnodar region and can be recommended for use in production conditions. Autumn application of nitroammofoski (N120P120K120) provides an increase in yield by 68.3%, increases the yield of mash from a hectare by 76.7% and the collection of sugar by 97.6%. Autumn application of phosphate-potassium fertilizers (P90K90) and early spring application of ammonium nitrate (N60) also contributed to an increase in yields by 33.3 and 40.6%, respectively. On the output of the wort, these options are equal, and for the collection of sugar phosphate-potassium fertilizers exceed ammonia nitrate
132 kb

PROBLEMS OF TRANSITION OF SMALL AND MEDIUM OIL COMPANIES IN LARGE BUSINESS

abstract 1321708061 issue 132 pp. 762 – 771 31.10.2017 ru 418
This article covers the qualitative difference between small, middle and large oil and gas business companies. Difficulties are shown while transferring from small into big business. Special methods of technology adaptation in oil and gas management are given when transferring from small into big business. The adaptation managing technological methods are defined in oil and gas enterprises while transferring ftom small into big business. The main problem in this case is the absence of adequate mechanisms of management efficiency. Such mechanisms would show quite exactly the role of each of the subjects of corporate relations and would form effective communications, state definite managing tasks, produce a definite control of their realization, connecting them with the system of encouragement and motivation. While transferring from small and medium into big business in oil and gas industry the struggle inside of the corporation strengthens for the influence over the finical aspects. This general struggle should be transformed into in cooperation and general development of the corporation, management and owners of the company. In this sphere most of modern researches are fixed on the adaptation of foreign methods, technologies of management to problems of Russian oil and gas companies. For solving this problem it is necessary to work out quite a different approach which will be based not on copying positive forms of relations but on formation conditions for a new type of Russian corporative management with economic, historical and social specialties of the national management
313 kb

EVENTS FOR INCREASING THE EFFICIENCY OF MANAGEMENT OF SUPPLY AND SALES ACTIVITIES IN AGRICULTURE

abstract 1331709073 issue 133 pp. 983 – 997 30.11.2017 ru 418
The article explores the problems of improving the efficiency of supply and sales activities of agricultural producers; the set of events to improve the efficiency of supply and sales activities is presented by three main groups, the first of which is associated with the development of infrastructure support (it extends the opportunities of economic entities by selecting the best channels and timing of the implementation of the production and acquirement of resources), the second is associated with the development of the sale and supply cooperatives (it allows you to consolidate your interests, to minimize distribution costs and provides more favorable conditions of realization of production and purchase of material resources), the third is associated with the increase of management efficiency of supply and sales activities (it ensures the growth of efficiency and quality of the most adopted managerial decisions, minimizes risks and mistakes in the choice of behavior model an economic entity on the market) it justifies the thesis that the increase in the efficiency of the supply and sale activities at the economic entity level resulted from the development of information system management, eventually, will bring additional direct and indirect economic benefits is justified, the methodology of the basis of optimal logistics centers' network that implements potato storage and pre-sale preparation functions, which at the first stage involves defining the volume of commercial potato in terms of districts, at the second stage - justifying potentially advantageous placement of logistics centers taking into account the location of transport hubs and the production volume of potato in the surrounding areas, at the third stage - working out of the economic and mathematical model for optimization of logistics centers taking into account the different level of security requirements storages while minimizing traffic volumes of potatoes put in storage
217 kb

EXPORT POTENTIAL OF THE AGRICULTURE OF RUSSIA

abstract 1191605042 issue 119 pp. 577 – 587 31.05.2016 ru 419
Export of the food production is undoubtedly one of the most important strategic problems of Russia. The agricultural capacity of our country allows it not only to be fully self-sufficient in terms of food but also turns it into the leading exporter of foodstuffs in the world. The solution of this task requires the effective solution of many problems such as bringing the food industries to a new higher technical and technological level, the creation of the export infrastructure and mechanisms of the financial support to food producers. The fulfilling of the export potential of the domestic agrarian and industrial complex will not only help Russian economy to find the faster way out of the crisis but also will let our country play a major role in the international food trade and, respectively, in the struggle against hunger in the poorest countries of the world. In this article, the essence and the structure of the Russian agricultural export are considered. The three scenarios of the export development (pessimistic, realistic and optimistic) and the conditions of their realization are analyzed. The analysis of the main indicators characterizing the current economic state of the agricultural production export is carried out. Based on the drawn conclusions, we have offered the ways of the solution of the given problem
126 kb

PROBABILITY OF ESTIMATION OF AMELIORATIVE CONDITION OF IRRIGATED FIELD WHEN USING BIOTECHNOLOGY

abstract 1211607110 issue 121 pp. 1778 – 1786 30.09.2016 ru 419
The biotechnology (year - round utilization of livestock and spirit wastages) was developed for the protection of farmlands and water objects. Technology of processing of organic wastages by means of earthworms (vermicomposting) gives the chance to use wastages of livestock complexes, to make a sewage disposal at minimum energy consumption. In the field experiment which was made in the training farm called "Kuban" for the detailed studying of influence of the held events there were put the platforms. The technique of probability of estimation of ameliorative condition of an irrigated field is given in the article. The nonparametric statistical assessment of degree of soil compliance to the normative conditions is defined
520 kb

MORPHOLOGICAL AND BIOCHEMICAL CHARACTERISTICS OF THE BEEF OF YOUNG SPECIAL MEAT AND HOLSTAIN SPECIES GROWN IN THE SOUTH OF RUSSIA

abstract 1211607141 issue 121 pp. 2288 – 2330 30.09.2016 ru 419
The author has examined peculiarities of meat productivity of animals of the most common breeds: Charolais, Simmental, Aberdeen Angus, Hereford, Kuban type of Red Steppe. As a result of the slaughter carried out for younger group achieved 15 months age, the Charolais breed bulls exceeded peers of Kuban type on slaughter weight to 60.9 kg (20.9 %), Aberdeen Angus – 53.8 kg (18.5 %), Hereford and Simmental respectively – to 35.1 and 24.8 kg (8,5-12,0 %). By the age of 18 months their superiority increased respectively by 56.9; 57.5; 55.8 and 29.9 kg (16.8; 16.9; 16.5 and 8.82%). Halves of bodies of the Kuban breed (considering the specific type of boneless beef output) aged 15 months gave way to all the groups: Charolais and Angus – by 1.1- 1.5%, Simmental and Hereford – by 0.4-0.6%. The yield of premium beef exceeds the standards in all genotypes: Kuban – by 9.5%, beef breeds – by 11.2% (Charolais) and 19% (Simmental). The balance beetween dry matter and moisture is in the optimal range (0.43: 1-0,73: 1). At 15 months of age, in the number of dry matter, Charolais bulls outnumbered Aberdeen-Angus and Red steppe at 5.1-5.2%, Simmental and Hereford - on 3,0-4,9%. With age, in the meat of calves of beef breeds the level of fat increased, for example, in Hereford and Simmental 0.3-0.5%, Aberdeen Angus and Simmental – 0.7-0.8%. In the middle of a sample of ground beef of carcasses of the calves of Charolais breed at the age of 18 months it contained more protein than in the meat of the calves of Red steppe (1.2%, Hereford (1.1%), Angus (1.4%), Simmental (1,3%). All the meat of the carcasses of the calves of specialized beef breeds was of high quality and diet: one part of the protein had 0.59 parts of fat (Aberdeen Angus) and 0.45 parts (Hereford)
487 kb

ASSESSMENT METHODOLOGY OF THE LEVEL OF DEVELOPMENT OF THE BUSINESS ENVIRONMENT

abstract 1251701042 issue 125 pp. 611 – 622 31.01.2017 ru 419
Contradictory processes of transformation of market relations makes for a fresh look at the problems of formation and development of favorable business environment, serving as a catalyst for the effective functioning of the business sector. During the years of reform, transformations in the domestic economy has developed a full-fledged business sector, but the modern period is characterized by the search for new forms, methods and conditions for its further development, most of which forms a favorable business environment. A necessary condition for effective development of the business environment at the regional level it is monitored on the basis of complex quantitative and qualitative indicators. In this regard, it is increasing the relevance methodological developments in the assessment of the level of development of favorable business environment. The article suggests a methodical approach to the assessment of the business environment, which served as the basis of multi-criteria evaluation of a combination of factors affecting the business climate in the region. As a productive indicator is proposed to use the comfort factor of doing business. The main stage of the methodology is the formation of expert groups in the field of entrepreneurship and the definition of competence of each expert. The result is a matrix of criteria five indicators to assess factors influencing the business environment. Based on the assessment of the business environment of Stavropol territory is divided into five typological groups, characterizing district municipalities: areas with a very high level of development of the business environment, areas with high level of development, areas with a moderate level of development of the business environment, with low level areas with a very low level of development of the business environment. Thus, the developed approaches to the assessment of the level of development of the business climate, will allow to justify the participation of entrepreneurial structures in various regional programmes of support and development of entrepreneurship
465 kb

THE TIME-OPTIMAL DIAGRAM OF MOVEMENT OF THE EXECUTIVE BODY OF THE PRECISION DIRECT CURRENT MOTOR WITH ELASTIC SHAFTING WITH CONSTRAINS OF MAXIMUM CURRENT AND THE FIFTH DERIVATIVE OF THE SPEED

abstract 1341710044 issue 134 pp. 534 – 550 29.12.2017 ru 419
The time-optimal diagram of movement of the executive body of the precision DC drive with elastic shafting with constrains of maximum current and the fifth derivative of the speed has been designed. The algorithm has been developed to determine the parameters of the time-optimal diagram of movement of the executive body of the precision DC drive with elastic shafting with constrains of maximum current and the fifth derivative of the speed. The region of existence of the time-optimal diagram of movement of the executive body of the precision DC drive with elastic shafting with constrains of maximum current and the fifth derivative of the speed has been set. According to the results of the numeral experiment, the dependences of the duration of the cycle of movement of the executive body of the drive from prescribed displacement (rotation angle) for different values of the fifth derivative of the speed have been plotted
ßíäåêñ.Ìåòðèêà