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The influence of the fertilizing system on the petroleum residues biodegradation on a preluvosoil under control polluted
251-254Views:222The paper presents the partial results of researches regarding the agrochemical melioration of soils under control polluted by petroleum residues that took place at the Agricultural and Research and Development Station in Oradea, Bihor County.
The experimental device was made out of 1 m2 microparcels, spread out in subdivided parcels, in four repetitions, having tree factors: A - the pollution by crude oil from Suplacu de Barcău, B – the mineral fertilization, and C – the organic fertilization.
The experience was set out on a preluvosoil în the year 1993 and the soil was cultivated with millet in the first 3 years and with spring wheat in the last 7 years of research.
The researches carried out in Oradea had the objective of establishing the effects of the fertilizing system on the petroleum residue biodegradation on a preluvosoil under control polluted with crude oil from Suplacu de Barcău, Bihor County. -
Evaluation of IT-Investments
378-386Views:192An informatical innovation is essentially a private business in the life of a venture but the ability of evolution and adaptability of ventures is remarkable for the national economy too. This is why it is important to observe the economical effects of IT investments. The introduction of an information system – as in the cases of other investments – requires pre- and post-calculations for payback of fixed assest, thrift and profitability. The operation of an information system means not only one-off acquisition of instruments and intangible assets, but requires continuous development, version control and improvement of hardware in the sake of conservation. There is a high rate of depreciation of IT investments in Hungary, because such goods change too quickly, together with the economic environment. If the conservation of IT instrument value wanted one has to make new expansions continually. IT specialists have determined some indices, one of which is Total cost of Ownership, which is an important indicator for investment analysis. In practice, there are some other models and methods we can adopt in our analysis. In this paper, I collected several relevant and usable methods for pre analysis of IT projects. Management can adopt these models in his investment process to make sound decisions.
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Evaluation of nutrient conditions in open hydroponic system based on tomato production
116-119Views:191Monoculture caused a gradual decline of soil conditions, while nematodes and salt accumulation stimulated the growers to choose alternative practices, such as soilless cultures, which proved their value in Western Europe. Exact statistics are lacking, but estimates deal with approximately 300-400 hectares of vegetable on rock wool, whereas other substrates of soilless culture may multiply this number. Real perspectives are attributed to the forced production of pepper, tomato and cucumber.
Vegetable production in greenhouses may impair the ecological balance of the environment substantially as far as being uncontrolled. Soilless cultures especially should be handled thoughtfully. A fraction of the nutrients administered, more than 25-30%, is doomed to be lost in an open system, and the resulting ecological risk is accompanied with increasing costs of the production.
In Hungary, the quantity of nutrient elements in drainage water is unknown, et all. Connecting the production results with chemical analysis, we gain more information about it.
You can see a mathematical method for evaluation of nutrient and water conditions in tomato hydroponics production. -
The noise monitoring system of Debrecen International Airport and requirement of appointing noise protection zones, regarding to the growing air traffic
191-194Views:251The Debrecen International Airport has been undergoing a significant transformation regarding to the growth of traffic and its composition. Considering the dwelling zone location of the airport we cannot avoid the possible noise pollution that it may cause, since its permanency, and growth of intensity, could be the reason of durable health deficiency. The airports’ noise pollution zones are determined, and classified by domestic, and international regulations, the measured data of the noise monitoring system, and the content of the air traffic regarding to the type of planes. Summoning all of these we recommend the D zone qualification of the airport, and the traffic daylight restriction referring to the S5 type of planes. We also advise to build up a more sophisticated and wider extended noise monitoring system.
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Plant clinic in Nepal: An overview
5-10Views:403Plant clinics play an important role in supporting farmers in growing healthy crops and achieving higher productivity in Nepal. The development and operation of plant clinics in Nepal are assessed in this study through a comprehensive analysis of the institution via literature review and interaction with key stakeholders. The plant clinic approach of the agriculture extension system started in Nepal in 2008, followed up with engagement with CABI and the Government of Nepal. Enhancement of farmers' knowledge and skill, encouraging sustainable farming methods, and ultimately increasing crop yields are the impact of plant clinics. However, there are some challenges faced during the implementation of plant clinics in the existing agricultural extension systems. In Nepal, the plant clinics are primarily operated by agricultural technicians with expertise in plant protection, as well as IPM farmer facilitators and community business facilitators after attending an intensive plant doctor's training. Plant clinics have been integrated into the agricultural extension system by agro-advisory service provider of the government of Nepal. Despite institutionalisation, policy support needs to be strengthened to ensure the sustainability of the different components of the (e.g., data management, validation, monitoring, localised content, etc.) plant clinic in Nepal.
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Tools of business process modelling
19-25Views:195All companies have business processes, regardless of the size or the industry in which they operate. Both executive and operational managers need insight into software-based business processes and their performance for that transforming business workflows by modeling, simulating, optimizing, and publishing processes and defining business rules.
I would like to introduce what kind of possibility the companies have got, when they want to model their business process. I choose the ARIS system from software market. I sketch out the function of ARIS system, and his application possibility. At last I present the best known diagram by means of some practical example. -
Topology in the fruit plantation
253-257Views:515The localization of fruit trees, the topology of the branch structure and the spatial structure of the canopy are important to plan sitespecific agro-ecological and production technology projects in an orchard. The currently used instruments and technologies – in the precision agriculture – give opportunities to obtain these informations. The examinations were carried out in the Study and Regional Research Farm of the University of Debrecen near Pallag with the use of a GreenSeeker 505 Hand Held™ Optical Sensor Unit, and its interface the Trimble AgGPS FmX Integrated Display board computer. The collected spectral data were completed with the 3D point cloud by Leica ScanStation C10 laser scanner. The laser impulse data and the vegetation index values were integrated in a unified 3D system. The integration of the two special data collection system provides new opportunities in the development of precision production technology system. The results could be directly used in phytotechnology, water management, plant protection and harvesting in orchards. Our elaborated method can supply digital high spatial accuracy guidance data for development of the automated machines, which could provide some new developmental way in the immediate future.
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Operational experiences of a geothermal heat pump system
115-118Views:249Energy consumption nearly 40% operation translates of the buildings in Hungary. In the last 5–8 years we can see a breakthrough in the field of low energy buildings, increasing the demand for buildings 'energy efficient', and realized several successful investments in our country. Nowadays thanks to the application system the number of public buildings increased environmental energy recovery system has been growing such as solar power, heat pumps.
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Inhibition of the spread of Sclerotinia sclerotiorum in aquaponics
5-8Views:709Sclerotinia sclerotiorum, which causes white mold, is a widespread pathogen. In 2020, a new host plant of this fungus, the watercress (Nasturtium officinale) was identified in Hungary in an aquaponic system. During the cultivation of watercress S. sclerotiorum was detected on the plant, the fungus caused a 30% yield loss. Fungicides should not be used against fungi in aquaponic systems. Non-chemical methods of integrated pest management should be used. These include biological control (resistant species, predators, pathogens, antagonist microorganisms), manipulation of physical barriers, traps, and the physical environment. In the aquaponic system, the removal of the growing medium (expanded clay aggregate pellets) solved the damage of Sclerotinia sclerotiorum 100%. By removing the expanded clay aggregate pellets, the environmental conditions became unfavorable for the development and further spread of the S. sclerotium fungus.
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Regional innovation: State of the art in the Észak-alföld region
139-143Views:175Innovation and innovation performance is gaining increasing importance in European policy, as the targets determined by the Lisbon priorities related to innovation seem to be still far away from the reality in some European countries and at EU level as well. Although the economic crisis determined the priorities of economic development and made it more complicated to dedicate more budget of Research and Development, one of the five ambitious objectives of the EU’s growth strategy for the coming decade: Europe 2020: A strategy for smart, sustainable and inclusive growth is still focusing on innovation. As the Lisbon Strategy determined the paths for national targets in the given areas, Europe 2020 will be adopted as well by the Member States.
In this context, the current work would like to give a short overview how Lisbon Strategy effected the national and regional innovation system in Hungary and will analyze its impact on Észak-Alföld’s region Research, Development and Innovation performance in the recent years and the transition of regional innovation governance system. -
Environmental aspects in accounting
127-131Views:292By the strengthening of the economic competition became it apparent a company can’t be valued separate, it should be examined as a complex system. In the assessment of corporate performance is increasingly emphasized the environmental performance. The relevant information of stakeholder about the environmental performance is todays an expection, For this, a management control system is needed, which provide relevant information to managers, hence facilitating the informed decision. This study highlighted, accounting systems are able to meet this demand sufficiently, the accounting means not only the usual bookkeeping, it can be interpreted as a management-controll system, which can help in the valuation of the environmental performance.
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Using of e-learning in agricultural training programs
117-124Views:177We use the Moodle at the University of Debrecen, Businessand Agricultural Department since January 2007. The Moodle is an open source Learning Management System. Learning Management System (or LMS) which is a software package, which enables the management and delivery of learning content and resources to students. Most LMS systems are web-based to facilitate „anytime, anywhere” access to learning content and administration. LMS tracks student progress in a course and indicates completions. At the least, learning management systems
track individual student progress, record scores of quizzes and tests within an online learning program, and track course completions. The Moodle has more and more function at our Department in education. In January we worked to introduce Moodle in our Faculty. Therefore, we took lessons for the tutors about the usage of the Moodle. Our aim was to develop such a learning system, which is an integral part of educational process,
to improve the efficiency of agricultural higher education. -
Fishes protected of Natura 2000 system in Slovakia
9-12Views:156The timely and effective establishment of Natura 2000 network is one of the greatest environmental challenges for the new Member States of the European Union. Slovak Republic is facing this challenge now. By the June 2005, the Government in our country must prepare a list of sites to be included in the Natura network, according to the criteria set up in the Habitat Directive. Natura 2000 sites, according to the specificEUDirectivesconsistofSpecialAreasofConservation(SACs),andSpecialProtectionAreas(SPAs).TheSPAsandtheSACs, the latter selected as Sites of Community Importance (SCIs), will be incorporated into the Natura 2000 network. The problems of proclaiming the system of protected areas of European importance for the Natura 2000 have been one of the major topics of the ichthyological activities in our country in recent years.
For 3 lampreys and 20 fishspeciestheterritoryofpotentialsiteofcommunityinterest(pSCI)hasbeenlimitedandproposed.Theselection of localities and examinations of population state in individual species of fishespresentedintheAnnex(II.,IVandV.)totheCouncilDirective No. 92/43/EEC were carried out in 2003/2004. In total 179 pSCI localities for fishandlampreysinthealpinebiogeographicregion (83) and in the pannonian biogeographic region (96) pSCI in the Slovak republic were selected and limited. The number of pSCI localities selected for individual species is different regards to their distribution within the river net of Slovakia. For example, for species of general distribution, 30 localities pSCI (Misgurnus fossilis, Rhodeus sericeus, Gobio albipinnatus, Barbus barbus) or 35 localities pSCI (Cobitis elongatoides, Barbus peloponnesius), have been proposed, on the contrary, in several species of exclusive distribution as Lampetra planeri - 8, Gobio uranoscopus - 9 and Zingel zingel -12 localities.
The pSCI territory for individual species of the ichthyofauna presented here represents the firststageintheprocessofcreatingtheprotected territory system of European interest Natura 2000 in the territory of the Slovakia for this group of aquatic vertebrates. The list of proposal sites will have to be submitted to the European Commission by the date of Accession. -
Towards good land governance in Ukraine
37-39Views:196The article presents the analysis of transformation of land governance system in Ukraine and explores peculiarities of every component of that system. The carried investigation reveals problematic aspects and the ways for improvement of state land policy, land reform conducting, land management instruments applying and land administration system building to promote good governance in land sector of Ukraine.
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The influence of fertilization and tillage method on the formation root system capacity and grain production of spring barley
89-93Views:242To evaluate the interaction of year x variety, year x tillage method and year x fertilization on the grain yield and root system capacity (RSC) of spring barley, we ran polyfactorial field trials in agroecological conditions of a warm corn production area in Slovakia, at Malanta, in 2009 and 2010. The RSC measurements were done using LCR - meter at a frequency of 1 kHz and they took place in four growth stages: at leaf development in the stage of four leaves (RSC1), in full tillering (RSC2), in the stage heading (RSC 3) and at the stage of ripening (RSC4). The values of grain yield, RSC1, RSC2, RSC3, RSC4 reached in 2009 comparison to 2010 were significantly lower. The highest yield in 2009 was reached by variety Marthe (4.49 t.ha-1) and by variety Bojos (7.19 t ha-1) in 2010. The highest values of RSC in observed growth stages were achieved by variety Bojos in 2009, and in 2010 also besides RSC1. Within both years, difference in yields between tillage methods was not observed. The values of RSC in growth stage of 4 leaves and tillering was higher at conventional tillage, butthe values of RSC3 and RSC4 were higher with minimized tillage. The highest grain yield and values of RSC in every growth stage were achieved on the fertilization variant “c“ in 2009 and on the fertilization variant “b“ in 2010. The correlation relationships between grain yield and RSC were significant and positive in every growth stage. The strongest relationship was found among grain yield and RSC (r=0.6047).
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Examination the stresseffect of litter’s let-together system (“kindergarten”) by measuring faecal cortisol metabolites of sows and piglets
87-90Views:407Piglets in commercial intensive pig husbandry are often abruptly weaned between 3 and 4 weeks for economic reasons. The process of weaning is a multifactorial stressor, in which nutritional, social, physical and psychologic stressors are combined. Piglets are often exposed to unfamiliar piglets around weaning which results in a period of vigorous fighting. Stress plays an important part in welfare research. Traditionally glucocorticoids are measured in blood samples but their use is often limited as the act of sample collection may stress an animal. Measurement of faecal cortisol/corticosterone metabolites is a non-invasive method for evaluation adrenocortical activity. The aim of this study was to examine the effect of litter’s let-together system (“kindergarten”) in the farrowing house by measuring faecal cortisol metabolites. According to our results the “kindergarten” system has no stress effect on sows and piglets, respectively.
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Discussion of an Electronic Examination System in Agricultural HigherEducation
160-163Views:223The development of an internet based electronic examination system at the University of Debrecen Centre of Agricultural Sciences, Department of Land Cultivation and Regional Development was enforced by the dynamic increase in the recent years in the number of students participating in classes taught by the department staff. This paper covers the system’s historical background, the usability factors we were focused on during its development, and the experiences of the testing phase.
The findings of a questionnaire carried out among our students aimed to clarify the acceptance, expectations and fears of future users. -
Previous data on the relationship between the intensity of pruning and the degree of damage in integrated and organic applegrowing systems
47-52Views:275In Hungary, fruit growers are increasingly interested in environmentally friendly growing methods, such as organic and integrated systems. Vital is the establishment of a strengthened system of cultivar-pruning-plant protection in production technology. Consequently, our aim was to examine the susceptibility of apple cultivars to diseases and pests and the effect of pruning technique on diseases and pests in organic and integrated growing systems.
Two pathogens (Venturia inaequalis, Podosphaera leucotricha) and two pests (Leucoptera malifoliella, Pannonychus ulmi) were observed in organic and integrated systems under „strong” and „weak” pruning techniques. Our results on six cultivars showed that the pathogens and pests infested the trees more in the organic system, as compared to that of integrated production. The pruning technique affected mainly the susceptible
cultivars to diseases and pests. The „weak” pruning technique caused a higher level of diseases and pests infestations than the „strong” pruning technique, especially in the organic growing system. The likely reason is that the shoots grow fast and powerfully under “strong” pruning technique. This supports better preservation of the trees supported by susceptibility of plant tissues to diseases and pests. -
The role of Local wine administration bodies in creating social and cultural capital and in the preservation of local identity
181-191Views:164the target for the European Union to make Europe the most competitive and dynamic knowledge-based economy in the world. In this process, the education and training are of great importance for the member states. The restructuring of higher education, the modernization of the universities cannot be achieved without new financial resources. They should be ensured by increasing contribution of the private sector. However it is not enough to invest sufficient funds in the educational and training system, they must be expended efficiently. The free higher education itself does
not necessarily guarantee the equal access and maximal participation. The quality of higher education and equal opportunity can be improved, if the rising funds are expended on infrastructure development and creating an efficiently working student support system.
Quality, equal opportunity, efficiency – they are the most important views for the decision-makers in the higher education reform. In my paper, I would like to interpret definitions relating to higher education and in this way I attempt to evaluate the financing systems of the Hungarian higher education formed since the change of the regime, with special regards to the normative financial system combined with the payment of tuition fees. For classification, it is necessary to present the different basic financial models. Furthermore, on the basis of the above criteria, I try to make recommendations on how to improve the present financial model in order to achieve the Lisbon objectives.
The topic is important in our days, because tuition fees will be introduced in Hungary from 2008. The problem is very complex, although the analysts in most cases tend to approach the topic with prejudice, depending on their financial and political interests. My analysis may contribute to discernment in the tangle of the pros and cons. -
Önitatók konstrukciós és hidromechanikai vizsgálata
52-57Views:220Our research aimed to examine Hungarian automatic drinking system constructions and hydromechanics under laboratory conditions and in operation with special emphasison the small volume, valve types.
Considering that no Hungarian standard of automatic drinking system examination and qualification exists, on the basis of technical literature, the new examination method of automatic drinking systems has been elaborated.
For laboratory measurements, a universal measuring bench was assembled which is applicable to the hydromechanic testing of all automatic drinking systems (cattle, sheep, pig).
Summary of the laboratory measurements:
Upon comparison of the flow capacity of the valves, in the case of same opening values (h/dn), the rubber spring valve of SZI type automatic fountain has the highest flow capacity, although in the case of 100 kPa pressure even this type has only 15-16 l/min value which hardly surpasses the lower limit of the desired 15-25 l/min range.
The loss coefficients of the valves, on investigating in the range 100-200 kPa, showed the lowest value (2,2-5,8) with the steel spring self drinking device.
Summary of the operational investigations:
In the long term operational investigations, the rubber stripped valve and the rubber spring automatic fountains had the most favourable operational reliability values: K4=0,98 and K4=0,94, respectively.
From the aspect of animal operation of the valves, all the Hungarian types are frontal operated, thus such system automatic valve drinking devices can be used only in long and moderately long stands, directed toward the animal.
On the basis of hydromechanical and construction examinations of the Hungarian tied cattle production technology the construction modification of the rubber spring valve of SZI type automatic drinking fountain, which is the most frequantly used in this country, was carried out. Due to design modifications the valve parameters improved significantly.
The goals of the accomplished valve modification were
ζ'sz – loss coefficient to be reduced
q – flow capacity to be increased -
Large Scale Measurement of the Total Antioxidant Capacity of Different hungaricum Fruit and Vegetable Samples with Photochem Chemiluminometric Device
300-304Views:254In our present study, we performed a quick test of the antioxidant capacity of domestic fruit and vegetable cultivars with a PHOTOCHEM® instrument (Analytik Jena AG, Germany). The instrument is special because it can measure both the total lipid-soluble antioxidant capacity (ACL method) and the total water-soluble antioxidant capacity. Another advantage of the system is its quick measurement. With similar instruments, such measurement can take several hours, while PHOTOCHEM® can perform it within a few minutes.
In our model studies, we examined the changes in the antioxidant capacity of sour cherry, green pepper, carrot, pumpkin, red beet and Brassica sp. cultivars. We aimed to determine how suitable the instrument is for quick, routine measurements in the case of the different horticultural products and which species have high antioxidant capacity values.
On the basis of our examinations, we can state that the PHOTOCHEM® system is suitable for routine, semi-automated measurements of the total antioxidant capacity at several vegetables and fruits. Besides this, the system can be used for testing the quality of food products, for monitoring storability in post-harvest technologies, and for special breeding programmes and for physiological and biotechnological studies. -
The system of fertigation-advising by the open-field vegetable growing with environment-protecting view
319-321Views:181The changed economical surroundings and the more strict ecological rules induced a need of changes also of the system of advisory on nutrient-supply of vegetable growing. There were many experiences and scientific results born after the last summarizing vegetable fertilization directives (1981), which allowed finishing a new system of advisory mentioned and presented above. We are sure, that the new directives, based on the modern view of vegetable production and also laying on economical possibilities will help the domestic vegetable production to stay competitive on the domestic and the foreign markets both.
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Work Organisation Supported by an Expert System in Agriculture
57-60Views:179Expert systems are softwares that incorporate the experience of an expert and support decision makers by leading them through the thinking processes of an expert in the form of „if…then” rules. To use an expert system we have to work with knowledge expressed in a pre-determined form. To do so, we used a shell that can be purchased, and we acquired knowledge about the topic from experts through interviews and personal monitoring. Attributes that are non-measurable, such as many of the factors determining work-place organisation and revealing knowledge related to it, can be formed into words by using expert systems. The goal of the study was to present a suggested form of expert system model to help judge the level of work-place organisation.
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Mapping agricultural performance and environmental parameters aimed at generic regional studies
29-34Views:517In this paper we present the interim results and the methodology applied to create web GIS ready cartographic representations of agricultural performance related information and environmental parameters. The main aim of the research is to eventually create a web GIS based decision support system that can enable decsision makers and general users to create useful and representative map layouts of certain environment and agriculture related phenomena that can be easily analyzed and interpreted to make strategic decisions on environmental issues. In this aim the initial steps are to evaluate the available data for cartographic representation, analyze the possibilities of visualization, create a GIS ready data structure and implement the database and revise additional possibilities to incorporate further environment related datasets of auxiliary sources. The main results of the study are a comprehensive set of visual layouts that could serve as guideline for mapping statistical information of agriculture and some steps towards the incorporation of environmental parameters to the system.
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Optimizing fish structure in angling ponds focusing on white fish
33-36Views:292According to new amendments of laws, commercial fishing licenses of natural waters shall not be issued from the calendar year 2016 in Hungary. However, the most settlement of white fish to angler ponds originated from natural waters. Currently, there is no sufficient quantity of fish species belonging to this group available to fulfil the settlement commitments of fish farmers. The aim of this recent study is to develop a breeding and production technology that is suitable for settlement of large quantities of this fish species of appropriate length of (4–5 cm). The following methods are investigated: aquaculture cage system (pond-in-pond system), monoculture and mixed population with different ratio of white fish in fish structure. Due to the different environmental needs of different fish species, many parameters need to be investigated, for example: stocking density, feeding, oxygen level, monoculture or mixed populations, growth potential and mortality. A preliminary experiment was carried out following the artificial propagation of ide (Leuciscus idus) following a 21-day larval rearing experiment in which the effect of different stoking density was investigated for mortality and growth. On the basis of the expected results, the optimal conditions for the aquaculture cage system will be described, regarding to the white fish stock.