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AGROECOLOGIC FEATURES OF OPTIMIZATION OF THE HUMUS CONTENT
06.00.00 Agricultural sciences
Description
The results of the long-term investigation of the stabilization of the humus content in the soil by the agricultural methods are contemplated and summarized in the article
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Description
The analysis of the modern condition and prospects of development of informational supply of agricultural enterprises is carried out
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Description
The task of optimal representation of text documents at the final stage of operation of an information retrieval system represented as the integer, combinatory task about assigning to the ranked place in the total list – each of the retrieved documents. To solve the task it is offered with usage of algorithm Kuhn in structure of automatic search servers.
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VALIDITY OF TAX BENEFIT AS CONDITION OF OPTIMIZATION OF THE TAXATION
Description
In the article the question of necessity of a substantiation by the business executive of the tax benefit received as a result of optimization of organizational structure of the managing person and manufacture of economic operations with counterparts - interdependent persons is examined
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Description
Principles of operation of a suggested automated informational system used for solving transportation problems of different complicacy and problematic are stated
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Process of optimization of transportations of production from manufacturers to the processing organizations is considered. The optimum plan of transportations at which their expenses will be minimal is found
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06.00.00 Agricultural sciences
Description
Two methods were developed, one to assess experimental results by reducing a number of developmental parameters to the overall quality, leading to the overall quality criterion, and the other to optimize processes affected by numerous interacting factors, in-vitro plant development in this case, by applying a mathematical design of experiment. Single-bud cuttings with one leaf of two Vitis vinifera L. genotypes were excised from the central part of two-month-old in-vitro grown plants and used as explants. The explants were established on bridges of filtering paper in liquid media and on solid media. Eighteen modifications of these media contained five macro-elements, each at three concentrations, and the distribution of these macro-element concentrations followed the law of random numbers (Experiment I). Parameters characterizing arm, leaf and root development of two-month-old plants of each study genotype established on each liquid or solid medium were reduced to the overall quality of plant development. Since the study genotypes differed in the ability to grow on liquid and solid media with different macro-element concentrations and also in the ability to utilize these macro-elements, the dependence of in-vitro plant development on macro-element concentrations was described by different regression equations. That is why the regression equation describing the average outcome of plant development in the two genotypes on liquid and solid media was not as significant and the description of the process was not as adequate (determined) as regression equations calculated for each process. The regression equation which describes the dependence of the average outcome of plant development on macro-element concentrations in Experiment I is as follows: y5 = 0.027 + 0.116x22 + 0.109x2x4 + 0.106x2x3 + 0.114x4. Stepwise calculation of macro-element concentrations to optimize in-vitro plant development was done based on macro-element concentrations of the initial medium of Experiment I as starting points since that medium was best efficient for this purpose by using regression equation (y5) and algorithms of multiple curvilinear stepwise regression according to the Box-Wilson method of steepest ascent. Experiment II was undertaken where macro-element concentrations (‘steps’) were calculated in a stepwise manner to optimize in-vitro plant development of the two V. vinifera genotypes and the rootstock ‘Kober 5BB’. This led to a liquid medium and a solid one which enabled a better plant development in the three genotypes relative to the use of controls: media with ½ MS macro-elements and the initial medium whose macro-element concentrations entered as starting points to calculate ‘steps’ for optimization of in-vitro plant development. The optimized medium contained macro-elements: 318 mg l-1 NH4NO3 (x1), 1188 mg l-1 KNO3 (x2), 370 mg l-1 MgSO4 7H20 (x3) (MS), 370 mg l-1 KH2PO4 (x4), 331 mg l-1 CaCl2 (x5) (MS), and other substances at optimum concentrations adjusted earlier: ¼ MS Fe-EDTA, ¼ MS micro-elements, 20 mg l-1 myo-inositol, 0.1 mg l-1 thiamine (MS), 0.5 mg l-1 nicotinic acid (MS), 0.2 mg l-1 pyridoxine, 2 mg l-1 glycine (MS), 0.1 mg l-1 indole-3-acetic acid, 10 g l-1 sucrose and, only for solid media, 7 g l-1 Difco agar. The optimized medium may be used for propagation of virus-free plants, valuable clones and grapevine genotypes created by gene engineering. The mathematical design of experiment reported in this paper which enables stepwise optimization of in-vitro plant development may be used both in agriculture and in the food industry
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Description
The approach to the solution of resource allocation problem in the process of activity planning for research and development organization having sufficient scientific and design capacity is considered. This approach enables to solve complex resource allocation problem in the context of designing division of work and network team building and project implementation technology, using software intended for solution of traditional linear programming tasks. Database modeling technique with account of specific characteristics of this approach is described
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THE SOFTWARE OF A SUBSYSTEM OF MANAGEMENT ECONOMIC PARAMETERS OF THE AGRICULTURE ENTERPRISE.
Description
In the article the development of software and its application in acceptance of the optimum administrative decisions at the agriculture enterprise is considered.
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Description
In the article necessity of integration of the agricultural enterprises for maintenance of a full cycle of manufacture, processing and realization of agricultural production is shortly proved, conceptually-conceptual bases of creation of systems of the analytical reporting in large agricultural enterprises are considered. It is offered to use systems of the analytical reporting on the basis of Deductor platform to increase the efficiency of registration systems and decision-making process optimization of manufacture and sale of agricultural production
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