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BULLETIN OF SCIENTIFIC INFORMATION - NR.16 / 2008

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1. COMPUTER AIDED RESEARCH. APPROXIMATIONS AND INTERPOLATIONS USING THE „MATLAB” SOFTWARE IN ORDER TO SIMULATE THE DEVELOPMENT OF THE VINE’S GROWTH STAGES

Nicolae Marian, Nicolae Elena, Atudosiei Nicole Livia, Florescu Gianina
Bioterra University of Bucharest
 
ABSTRACT
“MATLAB” is a programming language likewise a developing system which integrates the calculation, the visualisation and the programming in an easy way. The problems and their solution are concurred in an available mathematical language. Starting from the experimental data, the accumulation of the dry substance like a function of active temperature (Σ°C) and time (t), the software gets a function which brings the increase of vine SU(Σ°C, t), through interpolations with a very little step; so, this evolution can be determined empiric. For mathematical thoroughness in the approximation of function accumulation of dry matter (SU) depending on the temperature have used a variety of functions: exponential, logarithmic, polynomial depending on the type curve nonlinear sometimes fragmenting the diagram on parts. Simultaneous we can choose the function that proximate the best the experimental data by using dedicated software and we can get the values y=f (x) by interpolation yi=f(xi), the interpolation step being very small, 10-6. We can make such calculations of the value of dry matter (SU) not by experimental way, but by using the applied sciences on computer. Where experimental data collection are a disparate values we can complete, however small it would be intervening Variation Δx, can learn at any time variant ΔSU.
 
Key words: approximation, interpolation, “MATLAB” software, process stages, simulation, substance.
 

2. ANALYSIS OF THE METHODS FOR THE ENVIRONMENTAL PRINCIPLES INTEGRATION WITHIN THE MANAGEMENT OF FARMS SITUATED IN NORTH-EASTERN PART OF ROMANIA

Maniu Maria1, Atudosiei Nicole Livia1, Gavrilescu Camelia2, Nicolae Floarea1, Lepădatu Cristian1, Nicolae Marian1
1 Bioterra University of Bucharest
2 Institute of Agricultural Economic Bucharest
 
ABSTRACT
Our studies focused on analyzing the integration practices of environmental principles for the management of several farms situated in the region North-East of Romania. This analysis was made on the basis of the data collected on 114 agricultural units. Statistical data were obtained through Structural Agricultural Surveys, which have been conducted last year.
 

3. STUDIES REGARDING THE IMPLEMENTATION OF AGROENVIRONMENTAL INDICATORS ON SMALL AND MEDIUM FARMS FROM PLAIN, HILL AND MOUNTAIN AREAS

Maniu Maria1, Gavrilescu Camelia2, Atudosiei Nicole Livia1, Nicolae Floarea1, Lepădatu Cristian1, Nicolae Marian1
1 Bioterra University of Bucharest
2 Institute of Agricultural Economics Bucharest

ABSTRACT
The aim of this research was to analyze the practices for the implementation of environmental principles in small and medium farm management. Studies have been done according to collect information from fifty agricultural holdings with different ownership forms, located in Timis, Arad, Olt, Ialomita and Teleorman counties.
 
 

4. PRIORITIES OF THE AGRICULTURAL MANAGEMENT IN ROMANIA AT THE BEGINNING OF THE III MILLENNIUM

Dorobantu Horia
Bioterra University of Bucharest
 
ABSTRACT
The actual world’s economy confronts with multiple and complex issues, among of the agricultural crises of products and services, associated and connected with the financial and capital crises are major threats of the world’s security and stability.
Technological developed countries, including the biggest Trans national companies’ intensified the commercial competition, sometimes stepping of the limits of the legal and even of the morality, in the detriment of the poor/not developed and transition countries, the most of the planet population. An important, major and contemporary issue admitted also by the O.N.U. represents the elimination of the poverty and malnutrition. For acquiring this objective, at the world’s scale and also for the countries that are members, presumes the willingness of all the countries to collaborate on multiple plans: politically, technically, financially, including the improving of the human resources. Valuing the agricultural potential of Romania assumes identifying professional public and private management instruments and techniques capable to lead to the raising of the competition of the economy as a whole and in particular of the agriculture, which in our opinion represents an internal source not exploited accordingly.
Agriculture, as a primary sector of our national economy it is necessary to get a special attention by elaborating a coherent system of policies and strategies specifics to each product of the entire chain: production-distributionconsume, by this way we can eliminate the “non uniform” and “modelling” conventional and non performing practices.
 
KEY WORDS: globalization of the agricultural market, behaviour on the market of the companies and their managers, the management as a resource of
 

5. RESEARCH CONCERNING THE EFFECT OF CROSSING “TURCANA” BREED SHEEP WITH “SUFFOLK” BREED RAMS ON THE QUANTITATIVE PARAMETERS IN MEET PRODUCTION

Calin I.1, Straser Constanta2
1 University of Agronomic Sciences and Veterinary Medicine of Bucharest (U.S.A.M.V.)
2 Bioterra University of Bucharest
 
ABSTRACT
In this paper we have presented the results concerning the effect of crossing Turcana breed sheep with rams of the specialized meat breed Suffolk, in the first generation of half-breeds and the estimation of the quantitative parameters of meat production, under intensive fattening conditions. Compared with the Turcana breed lambs, the half-breeds had improved characteristics, a higher fattening aptitude being obvious. The results pointed out that the young half-breeds responded well to the intensive fattening system. The fattening parameters were: 198.5 g daily weight
gain and 38,84 kg body weight feed consumption depending on age and weight.
These parameters prove that the young Suffolk-Turcana half-breeds have a very good fattening aptitude and this system should be practiced in the fattening farms. The importance of breeding sheep and goats consists both of the diversity of the obtained products (milk, meet, wool, skin) and the economic significance of this production, reflected in the increasing demand of milk as well as of milk and meet products. There are several ways of increasing this production: improving the
productive capacity of the local breeds, achieving an efficient selection and creating several selection nuclei, improving the breeding the production conditions, etc. The sheep meet production in Romania increased due to the higher demand of some countries from the Middle East and even from the Western Europe. To increase the qualitative production of meet, it is necessary to resume the technology of intensive industrial fattening of the young sheep and rebuilding the young ram fattening complexes, as the demand is the highest for this category, which provides the highest economic efficiency. A very efficient lever in increasing the meet production is the use of industrial crossing; good results were obtained in this respect using the remarkable combinative features of the local breeds with breeds specialized in meet production like Border – Leicester, Ile de France and mainly Suffolk.
 
Key words: meat production, body weight, average daily weight gain,
food conversion capacity, specific consumption, half-breeds.
 
 

6. THE ALNALYSE OF POSSIBILITIES TO DEVELOP THE WINE SECTOR IN THE CONDITIONS TO ADHERE ROMANIA TO U.E.

Galan Cătălin
Bioterra University of Bucharest
 
ABSTRACT
( Romania, between west and east )
During the next years, Romania will have to accomplish an extremely difficult task in the development of the wine-growing industry. Local wine producers have to handle, on one hand, with the pressure from the behalf of the European partners, that are forced to deal with bigger wine stocks in a substantial regressing sector, and on the other hand to cope with extremely powerful competitors from the Republic of Moldova. a state with a dynamic and strong motivated wine industry oriented to new market destinations. In both cases, the stake is the same: to win the confidence of the Romanian consumers. And this by hook or by crook, even if crushing any conduct rules existing on a market and accepted tacitly or explicitly.
 
Key words: european wine market, romanian wine import, Romanian wine export, wine market instability.