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  • Site and hybrid-specific agrotechnical models in sweet corn production
    105-108
    Views:
    92

    The effect of three agrotechnical factors (sowing time, fertilization, plant density) and two genotypes on the crop yield of sweet corn was examined on chernozem soil in the Hajdúság region in two different crop years. Compared to the 30-year average, the climate was dry and warm in 2009 and humid in 2010. The experiments were conducted at the Látókép Research Site of the University of Debrecen. In the experiments we applied two sowing times (end of April, end of May), six fertilization levels (control, N30+PK, N60+PK, N90+PK, N120+PK, N150+PK) and two crop density levels (45 thousand ha-1, 65 thousand ha-1). The hybrids we used were Jumbo and Enterprise. As regards the requirements of sweet corn production, the crop year of 2009 was dry and warm. The effect of moisture deficiency was more adverse on the crop yields with the second sowing time. On the contrary, the other examined year (2010) was significantly humid; the precipitation was 184 mm above the 30-year average and the temperature was average.
    In the dry and hot crop year, the best yields were obtained with the hybrid Jumbo (25677 kg-1) at 65 thousand ha-1 plant density level on the average of the fertilization levels. The crop yields of Enterprise were also the highest at high plant density level (24444 kg ha-1). With the second sowing time the highest yields were obtained at the higher plant density level (65 thousand ha-1) with both hybrids (Jumbo 18978 kg ha-1, Enterprise 18991 kg ha-1), which confirmed the good adaptation capability of these hybrids at high plant density level. In humid crop year with early sowing time the highest yielding hybrid was Enterprise (at 45 thousand ha-1 crop density level 20757 kg-1), at the same time, Jumbo was best yielding at the higher plant density level (18781 kg-1). With the second sowing time the highest crop yield was obtained with Enterprise again (20628 kg ha-1 at 65 thousand ha-1 plant density level). With this sowing time the average yields of Jumbo, was 18914 kg ha-1 respectively. We found that dry crop year and early sowing time provided the best conditions for sweet corn production; the highest yields were obtained under these circumstances, which might be the results of the outstanding water management of chernozem  soils.

  • The effect of agrotechnological factors and the cropping season on sweetcorn (Zea Mays L. convar. saccharata Koern.) production in a humid year
    146-151
    Views:
    70

    We have examined the effect of three agrotechnological factors (sowing time, fertilization, crop density) and four genotypes on the yield
    of sweetcorn on chernozem soil in the Hajdúság region in 2009. The experiment was set up at the Látókép Research Site of the University of
    Debrecen. We have included two sowing times (27 April, 26 May), six nutrition levels (control, N30+PK, N60+PK, N90+PK, N120+PK,
    N150+PK) and four genotypes (Jumbo, Enterprise, Prelude, Box-R) at two crop density levels (45 thousand ha-1).
    In the humid cropyear of 2010 the amount of precipitation exceeded the 30-year average by 184 mm in the cropping season; the average
    temperature exceeded the same by 0.8 C on the average of the examined months. The circumstances were most favourable for sweetcorn
    production with the first sowing time, thus, this was when the yield of all hybrids was the highest.
    With early sowing time, the highest yield (23437 kg ha-1 yield) was obtained with Enterprise at 45 thousand ha-1 crop density level at
    N150 + PK nutrition level. The highest yield of the other three hybrids was 22253 kg ha-1 (Jumbo) 22286 kg ha-1 (Box-R) and 1873 kg ha-1
    (Prelude). With the second sowing time, the highest yield was obtained with Enterprise again (22237 kg ha-1) at 65 thousand ha-1 crop
    density level. With this sowing time the yield of Jumbo, Box-R and Prelude was 20888 kg ha-1, 17796 kg ha-1 and 17401 kg ha-1, respectively.
    We found that the highest yield was obtained at the highest nutrition levels (N120 + PK, N150 +PK) with the first sowing time, while the same
    was obtained at lower nutrition levels (N90 + PK, N120 + PK) with the second sowing time.

  • Complex appreciation of agrotechnikal factors of sweet corn (Zea Mays L. convar. saccharata Koern.)
    77-81
    Views:
    111

    Three agrotechnical factors (sowing time, fertilization, plant density) and the effect of two different genotypes on the yields of sweet corn was studied, in the dry and warm crop-year of 2009 on a chernozem soil in the County of Hajdúság. The experiments were carried out on the Látókép Research Station of Debrecen University. The experiment involved two sowing times (21 of April and 19 of May), six fertilizer levels (control, N30+PK, N60+PK, N90+PK, N120+PK, N150+PK) and two genotypes (Jumbo, Enterprise). Four plant density levels, 45 thousand ha-1, 55 thousand ha-1, 65 thousand ha-1 and 75 thousand ha-1 were used. In the early sowing time the highest yield was obtained with 65 thousand ha-1 plant density level and N120+PK treatment of Jumbo (18169 kg ha-1), while the maximum yield of Enterprise was 17818 kg ha-1 with 75 thousand ha-1 plant density level and N90+PK dose. In case of the late sowing time both hybrids gave the highest yield with 75 thousand ha-1 plant density level and N30 +PK
    treatment, with a crop yield of 13143 kg ha-1 (Jumbo) and 14324 kg ha-1, ( Enterprise). 

  • Analyzing the Efficiency of Dairy Farms by Using the Method of Data Envelopment Analysis (DEA)
    17-21
    Views:
    88

    In Hungary the dairy sector is in a long-term critical period, the stock has been in constant decline. The consumption of milk and dairy products in Hungary is slightly rising compared to the world tendency, and it is fallen behind the level in 1990. The milk consumption per capita in 2006 was with 75 liters less than the EU-15 average. Dairy enterprise is a very risky activity: the profitability of the enterprise is affected by the fluctuation of feed and animal health products prices from the side of inputs, and by the fluctuation of end-product prices. Under these circumstances it is vital for the
    cattle breeders, in order to survive, to harness the reserves in the breeding as effectively as possible. In our research we made a multi-faceted efficiency analysis of an agricultural holding’s three dairy farms. The chosen method for the analysis was Data Envelopment Analysis (DEA). The
    selection of the method is justified by the fact that there is not such a reliable database by which we could define production functions, and that DEA makes possible to manage several inputs and outputs, i.e. multiple decision problems, simultaneously. By using DEA the sources that causes shortfalls can be identified, analyzed and quantified on farms that does not operate efficiently, thus it can help the corporate decision support successfully. In the model inputs are the cost data per one liter milk – feed, medicinal product use, logistic costs -, and the main parameters
    concerning the keeping and rearing. Outputs are indicators concerning milk production, milk quality and others. We prepared the model in MS Excel, the linear programming model series were programmed by Visual Basic. After solving the model, in light of the shadow prices we can determine why either of the farms is not efficient.

  • Procurement as enterprise function at vegetable and fruit processing companies
    228-235
    Views:
    62

    The first main element of the supply chain is procurement; which has a great influence on the quality of products and services. The most important role of the procurement is the purchase of inputs which are necessary for the operation of companies. This includes procurement planning and the development of procurement strategy, so procurement is a process that is even more than simply buying raw materials. The functions of procurement are the selection of suitable suppliers, contracting, controlling and improvement of suppliers, and coordination of activities with other parts of the company.
    Planning of procurement, strategy formulation, supplier selection and evaluation, monitoring of the procurement process, and modification of original plan are important tasks of entrepreneurial procurement. The importance of procurement in a business organization is reflected by its position in the hierarchy of the firm. There are subjective and objective methods to select suppliers accomplishing their tasks on time and with good quality. Efficient purchasing management activity contributes to an increased competitiveness of the enterprise. The aim of this publication is to describe the procurement activities, to examine supplier selection and evaluation methods, to determine the position of procurement in the organization, and to prove the strategic importance of procurement.

  • Estabilishing Plant Production Systems by Optimising the Crop Structure
    82-84
    Views:
    61

    In our days, ecologiacal and economic models of agricultural application are of ever increasing significance. These provide an opportunity for more accurate planning, and thus can favourably influence the efficiency and the economic situation of the given enterprise. The relevant literature divides models according to various criteria. The most common is the division between optimising and non-optimising models. Non-olptimising models generally endeavour to make the best use of technological lines, of machine capacity, while optimising models are used to optimise revenues returns from sales; or occasionally, production costs. In our case revenue and returns from sales were optimised. The models examined consists of several modules. These are the following: plant cultivation modules, evaluations (assessment of situation, conception plan, complex corporate evaluation), supplementary sheets (sheets and charts for ancillary plant production, general costs of operation, summary and crops structure optimisation). With the help of the model annual plans of plant cultivation can be made an optimal crop structure may be planned with the resources of the enterprise taken into consideration, and thereby it becomes possible to define the largest net revenue on a corporate level.

  • Managing risk using real options in company’s valuation
    125-132
    Views:
    133

    The valuation of company is very important because provides information about the current value/situation of company, and through this, provide the opportunity of choosing the best company’s growth alternatives. The future strategic decisions are characterized by lack of knowledge, information, so all measures of company’s growth are closely linked with uncertainty and risk. The company’s valuation process is also related with uncertainty and risk. The risk may result both from the assessed assets and the technique used. In literature, we could find three approaches for risk management: capital budgeting based method, methods based on portfolio analysis and real options approach of risk management. Among them, the real options based methods is the most revolutionary approach for risk management. The advantages of the method, consists in the fact, that the process of establishing strategic decisions integrates the possibility of reversibility, delay and rejections, which isn’t it possible at two previous methods. The method also takes into account the total risk of company, so both the company-specific and systematic risk. In this study, I have used one of the best-known real option based method, the Black-Scholes model, for determining the option’s value. Determination of option value is based on the data of enterprise, which was tested Monte Carlo simulation. One of the basic assumptions of the Black-Scholes model is that the value of option is influenced by several factors. The sensitivity of option’s value could be carried out with so-called “Greeks”.. In the study the sensitivity analysis, was carried out with indicators Delta (Δ), Gamma (Γ) and Vega (ν). The real options based risk management determinations were performed in the R-statistics software system, and the used modules are 'fPortofio' and 'mc2d'. By using of real options method, I have calculated the average value of company capital equal with 38.79 million. By using simulation was carried out 1000 runs. The results of this show a relatively low standard deviation, small interquartile range and normal distribution. In the calculation of indicator Delta, could be concluded the value of company moves in 0.831 proportion to the price of options, the standard deviations of index is low, so the real option based method could be used with success in company’s value estimation. The Gamma index shows the enterprise value is sensitive just for large changes. The result of Vega reflects the value of option, so the company’s value volatility, which is small in this case, but this means a volatility of value. In summary, we can conclude that the call options pricing model, well suited for the determination of company’s value.

  • The Role of the 4M-ECO Agrieconomical Modell in the Crop Cultivation
    170-173
    Views:
    87

    Today, c for agricultural use are of ever increasing significance. These provide an opportunity for more accurate planning, and favourably influence the efficiency and economic performance of given enterprise. The relevant literature divides models according to various criteria. The most common is the division between optimising and non-optimising models. Non-optimising models generally endeavour to make the best use of technological lines, machine capacity, while optimising models are used to optimise revenue returns from sales or, occasionally, production costs. In our case, revenue and returns from sales were optimised. The models examined consist of several modules. Which include the following: plant cultivation modules, evaluations (assessment of situation, conception plan, complex corporate evaluation), supplementary sheets (sheets and charts for ancillary plant production, general costs of operation, summary and crops structure optimisation). With the help of the model, annual a particular can be made for an optimal crop structure the resources of the enterprise. This it becomes possible to define the largest net revenue on a corporate level.

  • Effects of the cropyear and the agronomical factors on agronomical elements of different sweet corn (Zea Mays L. convar. saccharata Koern.) genotypes in long-term experiment
    105-110
    Views:
    97

    In the crop season of 2010 (rainy year), we studied the effect of three agrotechnical factors (sowing time, fertilization, plant density) and four different genotypes on the agronomical characteristics of sweet corn on chernozem soil in the Hajdúság. The experiments were carried out at the Látókép Experimental Farm of the University of Debrecen. In the experiment, two sowing dates (27 April, 26 May), six fertilization levels (control, N30+PK, N60+PK, N90+PK, N120+PK, N150+PK) and four genotypes (Jumbo, Enterprise, Prelude, Box-R) were used at two plant densities (45 thousand plants ha-1, 65 thousand plants ha-1). The amount of precipitation in the season of 2010 was 184 mm higher, while the average temperature was 0.8 oC higher in the studied months than the average of 30 years. Weather was more favourable for sweet maize at the first sowing date, if we consider the yields, however, if we evaluate the agronomical data and yield elements (number of cobs, cob length and diameter, the number of kernel rows, the number of kernels per row) it can be stated that the size of the fertile cobs was greater at the second sowing date due to the lower number of cobs. The largest number of fertile cobs was harvested in the case of the hybrid Enterprise (72367.9 ha-1) in the higher plant density treatment (65 thousand ha-1) at the fertilization level of N120+PK when the first sowing date was applied. The largest cobs were harvested from the hybrid Box-R (cob weight with husks: 516.7 g, number of kernels in one row: 45.7) at the lower plant density (45 thousand plants ha-1) in the second sowing date treatment. Cob diameter and the number of kernel rows were the highest for the hybrid Prelude.

  • Examination of requirements of labour market, connected with competencies of agrienvironmental engineers and nature protection engineers
    81-87
    Views:
    97

    The most important goal of firms is to supply demand of their economic partners. To make it successfully, highly qualified human resource is needed. The quality of human resource is determined not only by qualification, command of a language, professional experience, practise, but extant competencies that can also be developped. To choose the expectant employee, it is not enough to have intelligence and proficiency. It is also decesive to examine particular competencies. All of these will define the employee’s achievement that can be the right way to the success of
    the enterprise. 
    It is need to make the cooperation between higher education institutions and employers closer. As a result of this, employers can know theirs ways about possibilities of the new higher educational training system. They can use professional knowledge, competencies of the Bologna system’s graduates at different pointsof the economic life. The higher education institutions can revise their training systems considering requirements of labour market. According to these requirements, they can form syllabus in order to train auspicious experts.

  • Rural Entertainment in the Püspökladány sub-region
    110-117
    Views:
    73

    The Püspökladány statistical sub-region is geographically located in Hajdú-Bihar county’s south-west corner, in the area called Nagy-Sárrét. The tourism of the sub-region has been highly determined by the proximity of Hortobágy National Park and the presence of thermal water, one of the most important resources of the region. As Hajdú-Bihar county – especially Debrecen, Hajdúszoboszló and Hortobágy – possesses these attractive factors as well, in the Püspökladány sub-region rural tourism could be an important means of catching the interests of – mostly Hungarian – tourists.
    In the course of this research, my objectives were to introduce the rural hosts of the sub-region, the main features and problems of rural hospitality as an enterprise and the characteristics and activities of rural tourist – from the view of the hosts.
    I chose questionnaires as the method of the investigation, and evaluated them with the help of SPSS and Microsoft Excel software. During the evaluation, I calculated distribution, arithmetic mean, deviation and carried out significance-analysis.
    The investigations confirmed my presumption, i.e. rural tourism has not gained ground yet in the Püspökladány sub-region. This statement is proved by the fact that I completed only 8 questionnaires in a sub-region with 13 settlements, where rural host activity concentrates on 3 settlements. The results of the questionnaire-evaluation prove the aforesaid.

  • Situation of small and middle sized enterprises in Northern Great Plain Region
    69-72
    Views:
    104

    Most of the enterprises operating in Hungary belong to the group of small and medium enterprises (SMEs) which means that their total number of staff is less than 250. The aim of the study is to examine SMEs operating within the North Great Plain region. It provides a short summary of the general characteristics of the region, the situation and significance of SMEs based on the data 2009 and it also clarifies the relevant definitions. The data shows that the enterprise type that is most characteristic in the the region is joint venture (the most popular type is Ltd). It can be laid down as a fact that the number of micro and sole entrepreneurs is also significant in the area. It is also clear that the majority of small enterprises deals
    with commerce, while most of the medium enterprises are involved in industry (processing industry). As a continuation of the examination, size of investments, influx of foreign capital, ratio of employed people and grant opportunities are also to be evaluated since these factors influence the operation of enterprises as well. 

  • The R&D and innovation activity of agribusiness enterprises in Hajdú-Bihar County
    67-71
    Views:
    125

    Economic changes have significantly accelarated in the 21th century. In this turbulent market environment enterprises are forced to adapt continously as they must be flexible in order to meet changing market needs. To achieve flexibility companies require innovation. The economic relevance of innovations is significant in every market sector and agriculture is no exception. Re-dynamizing agricultural innovations is a possibility for the outburst of the Hungarian agriculture. Agricultural enterprises have to face competitors as well and they should give priority to efficiency, sustainability and competitiveness in order to preserve their position in BOTH global and domestic markets. This study examines the innovation potential of the agricultural enterprises in the North Great Plain region based on own databases and case studies.

  • Accounting Information Systems in the Decisions Support of Enterprises
    280-286
    Views:
    39

    In the information society we are living in the whirl of information but this doesn’t mean that we are in full possession of information for our present decisions. We gain the information at time in insufficiently detailed another time in too detailed form, and the information were gained from different sources may be contradictory. The actors of market recognize the power of information but – as in the case of other-type resource utilization – the preparation of this information-power needs more or less investment. Greater part of the small and medium-size agricultural enterprises haven’t tool at all to gain the economical information. After the EU-connection if one of these enterprises will apply for financial support it needs supply continuous and detailed data about own activity for European Community. The main question that can exist exact data-supply without appropriate computerized background. On the other hand if an enterprise has information system it will have the market-goods on the others which don’t have such an investment.

  • Effect of facility location on haulage efficiency
    204-209
    Views:
    74

    In the 21st century, every economic sector must use the chances of evolution, technical and technological acquisitions, due to the level of competitiveness on the market. Such a sector as agriculture, where technology and the ideology of production are changing and adapting very slow to global expectations, by taking maximum advantage of opportunities, is a more central question. The greatest problems of Hungarian agriculture’s competitiveness are that this sector is very weak in capital and production costs make producers uncompetitive on the market. We can remedy this situation by using sources logically, purposefully and system approached. Logistics can provide the most useful assistance in such efforts.
    In agricultural logistics, there is a great deal of uncovered territory. The aim is to transplant methods that are working correctly in other sectors into the agricultural sector, while maintaining development. One of the most important areas is transport logistics and material movement. Methods of analyzing and planning transportation and material movement found in professional literature do not take into account the specific needs of agricultural production. My aim is to examine the effect of facility location in the running of an enterprise. Through the results, I make suggestions for modifying the currently used logistic method and suggest further methods of examination. The effect of agro-specific needs must be examined in carrying out innovations and making logistical planning methods reliable.

  • The role of agriculture in regional development
    25-30
    Views:
    173

    Agriculture is the leading national economic sector of Hajdú-Bihar county. The proportion of employees in this sector and the share of pro ducts produced in this region is above the country average. The contribution of agriculture to the GDP is 6.3%, as opposed to the average value of the country (3.3%). Based on their primary activity, 8% of the enterprises in the county are classified as agricultural and forestry companies, while this proportion is only 5.3% in the whole country.

    Nearly three quarters (71.1%) of the sowing area is occupied by maize and other cereals, mainly wheat. This proportion is slightly more than the country average (69.2%). The proportional area of oil crops - including sunflower – and roughage is nearly the same as the country average. However, there is a significant difference in vegetable production. Due to the higher intensity of vegetable production, the area occupied by vegetables is three times the country average. 19.4% of the crop products, 23.5% of animal products and living animals, 25.8% of the income generated by production factors and 29.8% of net enterprise income of Hungary originates from the North Great Plain region.

    The facilitation of creating local markets, e.g. local public food supply, satisfying the needs of food trade with local goods, the necessary awareness raising actions, secondary and higher education of experts, as well as the more specific and targeted utilisation of development resources are agricultural development tasks.

  • Validation of the competence profile of agri-environmental engineering bachelor course
    63-71
    Views:
    149

    As member of the European Union, the development if the Hungarian agriculture is determined by the Common Agricultural Policy. After the reform of the Common Agricultural Policy in 2003, the environmental protection has got a crucial function. The constant changing role of agriculture has reacted students in higher education. For firms connected to agriculture, human resource management based on competency has an important role in custody of competitiveness. One of the most important goals of firms is to supply the demands of their economic partners. To make it successfully, highly qualified human resource is required. The quality of human resource is determined not only by its qualification, language skills, professional experience, and practise, but extant competencies that can also be developed. To choose the expectant employee, it is not enough for them to have intelligence and proficiency; it is also decisive to examine their particular competencies. All of these will define the employee’s
    achievement that will definitely contribute to the success of the enterprise. Basically, closer cooperation is needed between higher education institutions and employers to achieve this goal. At the same time, the higher education institutions can revise their training systems considering the actual requirements of labour market, and accordingly, they can form syllabus in a way to train auspicious experts. In this article examination of the requirements of labour market for graduates from agri-environmental engineering bachelor course is presented.

  • Case study based analyses of economic viability of Hungarian beef farms
    184-193
    Views:
    73

    Our country has great traditions in the field of beef production. As early as the Middle Ages, Hungary was known as Europe’s beef exporter. In this decade, production of the Hungarian Grey has increased, due to the popular method of keeping these animals extensively. These animals were even exported to the European markets on foot.
    After joining the European Union, this sector of agriculture has been receiving attention due to the major subsidies which were given. Accordingly, numerous farmers have tried to enter this sector of production. However, the power relations have been changed lately, as have the technology used in production, which has undergone several developments. The integrative connections in the sector had been split and also the size of optimal and sustainable production has arisen.
    The economic activities must be judged by their effectiveness and profitability, but in most cases their effectiveness can only be seen through such outstanding facts which are independent from the farmer.
    I would like to model the economy of a certain enterprise, and the size and the level of its production, through my research under the actual economic circumstances. In my research, I pay special attention to the circumstances which are important in the Hungarian agricultural sector and rural development.

  • Economic Aspects of Winter Wheat and Sunflower Production Under Organic Farming Methods
    256-261
    Views:
    83

    On the basis of data from selected organic crop producing farms around Hortobagy and a significant conventional agricultural enterprise, the efficiency calculation of two important crops, winter wheat and sunflower were compared to each other, according to the organic and the conventional farming methods. The analysis was carried out on the basis of data of the year 2002, helped by the calculation and the comparison of the efficiency indexes. According to the results, the organic winter wheat was more highly profitable in 2002 than the conventional one, and this is because the price ratio of the two was quite high, however the yields and the production costs per hectare were almost on the same level. Considering the sunflower, organic farming was less productive than the conventional one in 2002, as the average yield in the examined organic farms was significantly lower than under the conventional farming method, and this was not compensated by the extra price for the organic crop product.

  • A study of product strategy priorities at the small enterprises of the North-Alföld Region
    55-64
    Views:
    69

    Through a non-representative sample of the small enterprises of the North-Alföld Region, this paper studies the product strategic priorities enabling us to make a detailed typology of small
    enterprises. According to the relevant technical literature, the types of small enterprises have typical strategic priorities. Obviously, each group can be characterised with certain strategic
    priorities, which are sharply distinct from each other. These priority features are shown in the form of characteristic features in the enterprise’s marketing activities, market behaviour (product policy, innovation attitude, technology, price policy). This paper studies the enterprises of the sample through the role of production technology, material quality, low price and branding endeavours affecting product positioning.

  • Evaluation of tree measurements after the reconstruction of tree-row system in five narrow streets of Debrecen
    217-222
    Views:
    149

    Viable urban environment is largely dependent on the size, condition and distribution of urban green spaces within and around cities. Treerows in streets are one of the most essential elements of urban green spaces. The aim of this study was to evaluate tree taxa compositions and lifespan values of trees in tree-row system with special reference to five narrow streets (Garai, Jókai, Tanító, Csokonai and Zsák) of Debrecen. Tree numbers, tree taxa and the origin of tree taxa were determined in two years (2009 and 2017). As a next step, six selected taxa (Pyrus calleryana 'Chanticleer', Acer tataricum, Sorbus intermedia 'Browseri', Magnolia kobus, Acer platanoides 'Olmsted', and Crataegus x lavalleei 'Carrierei') were further estimated for the following lifespan parameters: i) trunk diameter (cm), ii) tree crown size (m), iii) trunk status (in 0–5 grades), iv) tree crown status (in 0–5 grades), v) estimated tree viability (in 0–5 grades), and vi) tree value in Ft. Our results showed that the numbers of tree taxa were 9 and 11 in 2009 and 2017 as well as an overall 279 and 282 trees were evaluated in 2009 and in 2017, respectively. More than 60% of the trees were native or similar to native taxa. The largest and the lowest trunk diameters were achieved for Pyrus calleryana 'Chanticleer' and for Acer tataricum, respectively. The largest and the lowest tree crown diameters were achieved for Acer platanoides ’Olmsted’ and for Magnolia kobus, respectively. The best and the worst trunk statuses by 2017 were achieved for Pyrus calleryana 'Chanticleer' and for Crataegus x lavalleei, respectively. The best and the worst tree crown statuses by 2017 were achieved for Pyrus calleryana 'Chanticleer' and for Acer tataricum, respectively. The best estimated tree viability status was achieved for Pyrus calleryana 'Chanticleer' and for Acer platanoides. Overall tree values were 2.73 times higher in 2017 compared to 2009. In conclusion, this study clearly demonstrated the importance of appropriate choice of tree taxa for an establishment of tree-row system in narrow street conditions.

  • Analysis of the reasons for the crisis and insolvency of agricultural enterprises
    49-54
    Views:
    57

    The huge insolvency of the enterprise organizations is very adverse for the national economy, the first social and economic task of each country, Hungary as well, should be the maintenance
    of the efficient and viable organizations. The liquidation of the agricultural organizations has much more economic and social effects. As a result of my researches I declared that most of the
    time the causes, which led to the liquidation of agricultural organizations, are independent from the organisation and are external. The common feature of external causes are that they are
    not influenced by the organisations, so they cannot be avoided. So the adaptation to the external causes has huge importance in the battle of avoidance of insolvency.

  • Connections between land usage, property structure and agricultural enterprises in Hungary
    31-34
    Views:
    83

    The last decade of Hungarian agriculture was marked and changes which affected all parts of agricultural production. This process resulted in a new ownership and organisation structure. The paper presents the effects of the changes in ownership on land use and the various enterprise forms and intends to outline the main tendencies. In general, it can be stated that the role of agriculture in GDP production and employment is decreasing in Hungary, but according to concurrent opinions of experts, agriculture still has and will have a major role in income production and the ease of social tensions in rural areas in the future as well. Hungary’s accession to the European Union provides new chances and new prospects for Hungarian agriculture and rural areas. Hungarian agriculture became a part of the internal market which includes about 450 million people. The safety of marketing became stronger, the rate of financial support is increasing and the income of growers will increase in the future. This process implies more obligations and the keeping of strict regulations. Competition inside the internal market is intensifying, competitiveness will be more important while the chances of development and investment of the growers and the feasibility of more effective land use are increasing. After the accession, integration into the directives formulated in the CAP and the packages of measures accepted in it is framework have growing importance.
    These directives encourage farm-reallocation, namely the rational estate concentration. In general, it can be stated that rational estate concentration, and more effective land use as a consequence, will increase the efficiency of agricultural production.

  • Study of some physiologic properties of different genotype sweet corn hybrids
    105-110
    Views:
    95

    The effect of nutrient-supply (control, N120+PK) and two different genotypes on the physiologic properties of sweet corn has been investigated in the crop-year of 2011 on chernozem soil in the Hajdúság region. The experiments were carried out at the Experimental Station of the University of Debrecen in Debrecen-Látókép. The experiment was sewn in two different sowing times: the 21st April can be considered as an early, while the 19th May as a late sowing time. The two involved hybrids were Jumbo and Enterprise. The applied plant density was 65 000 plants per hectare.
    Our aim with this experiment was to study the plant production, just as the main affecting factors of its development and dynamics, like nutrient-supply and genotypes. We aimed to study and analyse the relationships between these factors and plant production. In this study following parameters were measured and calculated: photosynthetic activity, chlorophyll-content (SPAD-value), leaf area index (LAI) and leaf area duration (LAD). Regarding the analysis of photosynthetic activity values no obvious relationship between the measured values and the applied hybrids, just as nutrient-supply has been revealed. 
    Analysing the SPAD-values it can be stated that the chlorophyll-content of the measured leaves showed an increasing tendency due to the nutrient-supply. The highest values have been measured in the intensive cob development phase of the early sowing time plots.
    Regarding the LAI-values we have found significant differences between the fertilizer treatments in both sowing time treatments. In case of the leaf area duration values – that is derived from the LAI values – nutrient-supply has positively affected the duration of the assimilation area.