Scientific Journal of KubSAU

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

Degtyareva Karina Aleksandrovna

Scholastic degree

Academic rank

Honorary rank

Organization, job position

FSBEI HPI Novochercassk State Land Reclamation Academy
   

Web site url

Email

rse@mail.ru


Articles count: 7

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549 kb

CALCULATION OF THE VOLUME OF DE-LIVERED BIRD DUNG UNDER FERTILIZER IRRIGATIONS OF TOMATOES IN THE FIRST ROTATION AND CUCUMBERS IN THE SE-COND ROTATION

abstract 1411807001 issue 141 pp. 1 – 18 28.09.2018 ru 78
We have made calculations using the values of dung delivered after the analysis of laboratory research of the soil and irrigation water delivered with organic fertilizers. Based on the data on values of hydraulic resistance coefficients of mixer elements, mixing chamber and diffuser, we found diameters of pressure pipelines, reduced head of NGPR mixer, velocity of flow discharge from mixing nozzles and the mixing chamber. According to the design data of the pump head values, those of the mixer head, the head on inlet into the mixer and head in a reservoir of constant pressure a possibility was received to specify values of factors under studies on location of irrigation system and to test the design data with the help of the experimental value received. A low head system with hydraulic and geometric parameters of mixing is recommended for small farms
1650 kb

DESIGNED PARAMETERS FOR NOZZLES OF LOCAL SMALL-JET LOW-PRESSURE IRRIGATION NETWORK FOR THE CONDITIONS OF PROTECTED GROUND

abstract 0731109034 issue 73 pp. 370 – 378 30.11.2011 ru 985
Hydraulic design of water outlets installed (mounted) on water application pipelines of low-pressure small-jet irrigation network when growing gerbera flowers under the conditions of protected ground is given in the paper. Relationships for estimating coefficients of hydraulic resistance and discharge coefficients for different nozzles are deduced
522 kb

JET SYSTEM OF MIXTURE OF FERTILIZERS AT FERTIGATION IRRIGATION CROP ROTATION OF TOMATOES AND CUCUMBERS FOR CULTIVATION IN THE PROTECTED SOIL IN THE CONDITIONS OF THE ROSTOV REGION

abstract 0981404066 issue 98 pp. 921 – 931 30.04.2014 ru 1034
In this article the scheme of landing of early tomatoes and cucumbers in the climatic conditions of the Rostov region is described; we have also calculated the dose of fertilizers for jet system of mixture at a fertigation irrigation. The conclusion is drawn with a possibility of cultivation crop rotation of tomatoes and cucumbers in not heated greenhouses with application of fertilizers
2076 kb

LOW HEAD IRRIGATION PROJECTS OF WATERING VEGETABLE AND FRUIT GROPS

abstract 0861302052 issue 86 pp. 735 – 744 28.02.2013 ru 795
In this article, the analysis of the developed local irrigation system with the simultaneous nutrient application is given. On the basis of the experimental data, the author pointed out that to solve the problem, the process design ensuring sufficient application of nutrients for growing vegetable and fruit crops is required. The fertilizer and water mixing device according to the Patent #2448450 is considered
319 kb

STALLING SPEEDS OF PRESSURE IN-FLOW STREAMS OF STOCK-RAISING FLOWS, MINERAL FERTILIZERS AND WATER

abstract 1041410082 issue 104 pp. 1107 – 1116 30.12.2014 ru 464
The article describes a circular two-surface threecomponent jet agitator (pump). The calculation method of critical precavitation speeds and in-flows of livestock wastes and mineral fertilizes was introduced
761 kb

TECHNOLOGICAL PROCESS OF CULTIVATION OF TOMATOES AND CUCUMBERS IN THE PROTECTED SOIL WITH USE OF LIVESTOCK DRAINS AND THE BIRD'S DUNG

abstract 0981404067 issue 98 pp. 932 – 941 30.04.2014 ru 1184
The analysis of the developed types of local system of an irrigation is presented in this article with simultaneous input of nutrients. On the basis of an experimental material it is noted that development of the technological process is necessary for the solution of this problem, allowing to provide sufficient input of nutrients, at cultivation of vegetable and fruit crops. Installation for mixture of fertilizers and water according to the patent 2448450 is considered
1831 kb

THE CALCULATION OF THE PERFORMANCE PARAMETERS OF PUMPING EQUIPMENT AND PIPING NETWORK OF WATER SUPPLY AND RECLAMATION PUMPING STATIONS

abstract 1101506029 issue 110 pp. 438 – 454 30.06.2015 ru 452
The calculation of pumping equipment and piping network parameters is presented. The method of cutting impeller pump diameter for optimal performance of pump unit with piping system on efficiency value is shown. The case of operating the distribution network and pumping station with three pump units D1250-25 is considered. Procedure of construction of loss-of-head curves in pipes, determination of the actual operating parameters of a single pump unit, selection of pump impeller diameter for essentials is indicated. Four points for graphing such curves are presented. According to the first point the whole network is divided into sections with suction, pressure main pipelines and pipelines with changing water flow compared with the previous ones. The second point involves definition of the electrical resistivity of each site. The resistance of network analyzer is determined in the third point, the loss-of -head of the whole network is determined in the fourth point. The article presents the scheme of pumping station with three pump units connected in parallel and a distribution network (Figure1), loss-of-head curves in pipes regardless the number of working pumps (Figure 2), the order of constructing three loss-of-head curves with operating one, two and three pumps with normal and cut pump impeller diameter (Figure 3 ), the order of determination of the actual parameters of pump work characteristics according to combined characteristics of normal and cut pump impeller diameter ( Figure 4) In conclusion, it is stated that the question of proper definition of actual parameters of pumps and the support of these parameters in optimal mode remains open due to the lack of proper methods of constructing loss-of-head curves pipeline. Every similar calculation is preliminary and should be carried out in field conditions
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