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  • Effect of Rootstocks on Blooming Capacity and Productivity of AppleCultivars
    14-20
    Views:
    433

    The experiment with three different rootstock cultivars was set up in a commercial apple orchard at Nagykutas, which is situated in the western part of Hungary. The aim of our two-year-study was to determine the effect three different growing rootstock cultivars (M9, MM106 and seedling) on the flowering and productivity of 33 apple cultivars. Our observations included the following measurements: the date of the beginning and the end of flowering, flower density, fruit density, fruit numbers per tree and tree productivity. According to our results, it was found that the different growing rootstocks have a great determining effect on the above measurements. Our results showed that the flowering period was similar for all cultivars on the three different rootstocks. However, the flowering and the fruit setting decreased in the order M9, MM106 and seedling rootstocks. In contrast, the fruit number per tree followed, in decreasing order, MM106, seedling and M9 rootstocks.

  • The examination of relation between the C/N ratio and the biogas yields in the Regional Biogas Plant of Nyírbátor
    63-68
    Views:
    316

    The Regional Biogas Plant of Nyírbátor was built by the Bátortrade Ltd. The biogas plant contains 6 mezophil and 6 thermophil fermentation tanks, because the biogas production is based on mixed compositions. The regional plant is a multifunctional system. It produces agricultural products and biogas with high methane content. The utilization of biogas is also accomplished here; gas-engines transform it to electricity and
    heat-energy. The product electricity is used by the local plants, the surplus is sold. 
    The aim of the research is the examination of the quality and quantity of the input materials that put into the mixers and follow the seasonal, periodical and optional changes of the input materials. The analyzation of the quality and quantity data can give an answer to the optional changes of biogas production because the input materials determine the composition of the examined recipe. The C/N ratio was between 11-13, the maximal value of the biogas yield was observed by 12.35 C/N ratio.

  • The effect of irrigation on the yield and quality of maize (Zea mays L.) hybrids
    143-147
    Views:
    384

    In this study, the effect of water supply on the quality and productivity of different maize hybrids was observed.

    Maize production is influenced by many agro-technical factors such as nutrient supply, plant density, environmental factors, water supply and temperature. Good soil quality and adequate technology significantly reduce the unfavourable effect of crop year. The impact of fertilization, crop rotation, irrigation and plant density on maize yield was greatly affected by crop year and crop rotation. The main constituent (69–75% dry matter concentration) of maize seed is starch, however, its increase can be achieved only to a limited extent, as increasing the starch content will reduce other parameters, especially protein content. Significant nutrient content improvements can be achieved by appropriate hybrid-site connection and the use of adequate technology. Protein content reduction with optimal water supply can be positively influenced by the appropriate nutrient supply for the hybrid.

    The experiments were carried out at the Látókép Experimental Site of Crop Production on calcareous chernozem soil. The weather of the examined year, which was partly favorable for maize and partly unfavourable in other respects, was also reflected in the development of maize and yields achieved.

    In 2019, we were examining the hybrids of Kamaria (FAO 370), P 9903 (FAO 390), DKC 4351 (FAO 370) and KWS Kamparis (FAO 350–400). Due to the dry soil condition, sowing was delayed, however, the hybrids emerged ideally because rain arrived soon after sowing, which facilitated initial development. Young plants evolved rapidly and dynamically in the case of all hybrids. In terms of heat-demanding bread, the month of May was unfavourable to temperatures below the annual average, but the higher amount rainfall helped the development. However, due to the drier period in early July, 25–25 mm of irrigation water was applied to half of the experimental areas on July 1 and 15.

    The aim of our research was to determine the best population density for hybrids under favourable soil conditions (calcareous chernozem soil). In both irrigated and dry conditions, a crop density of 75,000 crops were the most favourable for the Kamaria hybrid. The P9903 hybrid in the case of a crop density of 85 crops proved to be ideal and the DKC4351 had an optimal population density of 95,000.

    However, it should be taken into consideration that, in the case of soils with poor water management, the drought sensitivity of the crop stand may increase at a population density of 95,000.

    As a result of irrigation, yield increased and the difference between the examined plant numbers decreased. The yield growth was relatively moderate (341 kg ha-1 – 1053 kg ha-1), which makes the economicalness of irrigation doubtful in the given year.

  • Effects of production factors on the yield and yield component of winter wheat
    26-31
    Views:
    241

    The effect of major production factors (forecrop, fertilisation, irrigation, soil cultivation and soil preparation) on the yield components and yield of winter wheat were studied in a long-term  experiment set up at the Látókép Experimental Nursery of the Agricultural Sciences Centre of the University of Debrecen. The results of regression analysis led to the following conclusions:
    • In our experiments in 2000, after using maize as a forecrop –based on the results of analysis of regression – fertilisation determined the yield.
    • After using pea as a forecrop, a N50 P35 K40 kg/ha fertiliser rate led to an economical increase in the yield of winter wheat.
    • None of the determinative yield components varied significantly for winter wheat produced after using pea as a forecrop.
    • There is a closed, significant correlation between plant height, spike length, plant and spike mass, the number of spikelets and grains per spike after using maize as forecrop. The thousand grain mass is different from the other yield components, because it is not part of the relation system of
    those yield components.
    • The increased yield of winter wheat after maize has been used as a forecrop is due to the positive change in grain number per spike yield component.

  • Analyzing the Efficiency of Dairy Farms by Using the Method of Data Envelopment Analysis (DEA)
    17-21
    Views:
    398

    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.

  • Comparative study of different soybean genotypes in irrigation technology
    91-95
    Views:
    828

    In many places in Hungary, early maturity soybean can be successfully grown. The earlier maturity group of soy which ripened in 110–125 days in most crop areas in Hungary. However, to achieve excellent results, the selection of proper varieties is important too. Successful cultivation is largely dependent on the macro and microclimate of the production area, the nutrient supply of the soil and the cultivation technology. Soybean can be produced in places where the amount of precipitation is right, as the lack of water results in lower yields and deteriorated oil and protein concentrations. In the following study, 2 years (2016 and 2017) are compared to the yield, protein and oil content of the soybeans of the early maturation group in irrigated and non-irrigated treatments. Based on our experiment, it can be stated that, during the irrigation of soybean, oil and protein content and yields did not always change.

  • Optimal age of breeding gilts and its impact on lifetime performance
    15-20
    Views:
    978

    Age at first breeding and lifetime reproductive performance was analyzed on 17,558 F1 Landrace x Yorkshire gilts from 9 piglet producing herds of Midwest, United States entered in herds between 1st Jan 2014 and 31st July 2016. At the time of data collection Dec 2018, 15% of the sows were still active in the herds hence excluded from the analysis. Individual gilt data included date of birth, age in days at first mating, piglet total born by parity, lifetime piglet total born and reason for culling. Quality data checks were done before analysis to eliminate all outlier values together with sows that had no entry information for any listed category. The total database of the sows was classified into 6 classes according to age at the first mating in days 170-190(n=754), 191-211(n=4683), 212-232(n=7123), 233-253(n=3385), 254-274(n=1002) and 275-369 (n=611). Piglet total born obtained from each sow during the lifetime production was significantly (P < 0.05) greater for gilts bred between 233-253 days of age at first mating. Gilts that were bred at <233 days appeared to have a higher risk of removal by farrowing productivity as compared to the other groups. However, the results show that the risk of being culled due to health problems and conformation issues increases as the age at first mating is delayed. Overall reproductive failure appears to be the most economical culling reason across all age groups. There is a need to evaluate the best management decisions for gilt initiation in a herd to maximize her lifetime performance. The results indicate that gilts mated for the first time at the right age, 233–253 days, are more productive, both in lifetime total born and have a minimal risk of culling due to farrowing productivity.

  • Conceptions regarding sustainable agriculture – the national sustainable development strategy
    42-51
    Views:
    226

    The task of the national sustainable development strategy is to provide a long term conception for the economy and society, so that this might function and develop in harmony with the environment. Creating the conditions for sustainable agricultural production requires the elaboration and implementation of long-term programs spanning generations. The objective is to find a compromise between the conceptions appearing in the long-term and the short-term programs.
    In Hungary, several principles, conceptions and proposals have been suggested regarding sustainable agriculture. In the present study, I intend to systematize the above mentioned principles and conceptions, and compare them to the conceptions regarding agriculture in the national strategies of the EU member states. Furthermore, I examine to what extent the agricultural policy of the European Union supports the conceptions regarding agriculture in the strategies. This topic deserves special attention, as the Hungarian national sustainable development strategy is being prepared and is supposed to be finished by the end of 2005.

  • Creating potential agricultural clusters in the Northern Great Plain Region
    63-67
    Views:
    249

    The crisis of the hungarian agricultre is continuous since the ’80s. The compensation is made a dual farm system, which has created barriers to efficient agricultural production. It is confirmed by the economic indexes as well. But the most important natural resources of our country is still the land. Over the past 20 years, the government was not able to work out strategic aims and adequate system for the hungarian agriculture. In the past three decades the clusters has become the most common tool in economic development worldwide. Clusters always base on some local knowledge, and a country can be competitive on the industry in which the resources are concentrated. So the question is, is it possible to „clusterize” the
    agriculture and through this develop the rural economic.

  • Loss and Disease Development of Monilinia fructigena (Aderh. & Ruhl.) Honey in an Organic Apple Orchard
    6-8
    Views:
    438

    In a two-year-study, yield loss and temporal development of incidence of Monilinia fructigena were quantified in organic apple orchards and the importance of fruit wounding agents was determined. The first infected fruits were observed at the beginning of August in 2001 and 2002. Disease development was continuous until fruit harvest in both years. Pre-harvest yield loss caused by Monilinia fructigena amounted on average 27.2% in 2001 and 41.6% in 2002 by fruit harvest. The growth rate of disease development was almost double in 2002 compared to 2001. All infected fruits were injured by wounding agents such as aboitic and mechanical injury factors, codling moth (Cydia pomonella), common earwig (Forficula auricularia) and birds. In this study, the most important wounding agents were codling moth and mechanical injury factors in organic apple orchards. In both years, our results showed that 70-80% of the infected fruits were damaged by codling moth in organic apple production. Moreover, 10-15% of the infected fruits were mechanically injured in the two years. Our results indicated that most of the damaged fruits fell on the orchard floor before harvest and they became an important secondary inoculum source of M. fructigena. Biological and practical implications of the results are discussed.

  • The past and present of Érmellék wine region
    49-52
    Views:
    262

    Érmellék is an area of the Partium. It is situated between Szilágy and Bihar counties and between River Kraszna and Berettyó. Its name is from Ér, the small brook, which crosses the area. Érmellék is famous for its wine production, because its climate is favourable for this kind of trade. Only a few information sheets of the small Partium-belonging micro-region, Érmellék are published nowadays. Érmellék has extremely picturesque architectural wine cellar rows, of which ”szalacsi” wine cellar row (wine cellar row system) with its unique structure consists of about a thousand cellars.

  • A simplified growing model for mixed black locust (Robinia pseudoacacia L.) and poplar (Populus spp.) plantations in the Danube-Tisza Interfluve
    97-100
    Views:
    430

    This study presents a static model of mixed black locust (Robinia pseudoacacia L.) plantation stand structures for inventory stand structures between 10 and 40 years of age. Due to its local character, the model can be advantageous in planning tending operations, making structural factor predictions for the standing stock (main stand) after tending cuts, and preparing local wood production and silvicultural models. The model data presented in this paper show that poplars account for 55–62 % of the volume per hectare due to their faster growth rate in mixed black locust and poplar plantations. Maintaining the black locust part of the stand necessitates harvesting the poplars by the age of 10 at the latest.

  • Comparative examination of a bacterium preparation (BACTOFIL® A10) and an artificial fertilizer [CA(NO3)2] on calcareous chernozem soil
    75-80
    Views:
    405

    In a small-pot experiment a bacterium preparation, Bactofil® A10 and an artificial fertilizer containing Ca(NO3)2 in different dosages were studied on calcareous chernozem soil, concerning the readily available nutrient content of soil (nitrate-nitrogen, AL-phosphorus, ALpotassium content of soil, some soil microbial characteristics (total number of bacteria and fungi, cellulose-decomposing and nitrifying bacteria, CO2-production of soil), and the amount of the plant biomass.
    The readily available nutrient content of the calcareous chernozem soil increased due to the treatments, except for the change in the soil nitrate-nitrogen content, which did not measure up to the control due to the effect of high-dosage Bactofil.
    The treatments also influenced the examined microbial characteristics of the soil positively. The artificial treatments significantly increased the total number of bacteria and the number of cellulose-decomposing and nitrifying bacteria. The low-dosage Bactofil significantly increased the number of cellulose-decomposing bacteria and both Bactofil dosage significantly increased the number of nitrifying bacteria. The measure of the soil respiration grew in all treatments, but significantly only in Ca(NO3)2 fertiliser treatments.
    The quantity of the plant biomass was grew in a low-dosage Bactofil and significantly in the artificial fertiliser treatments. The highest plant biomass quantity was measured in the high-dosage artificial fertiliser treatment.
    In the correlation analyses we found some medium positive correlation between the soil chemical, microbiological parameters examined, and the plant biomass in the case of both treatment-forms. 
    Based on our results Ca(NO3)2 artificial fertiliser treatments on calcareous chernozem soil proved to be more stimulating regarding the
    examined soil characteristics and the amount of the plant biomass, but the low-dosage Bactofil also positively influenced the majority of the
    soil characteristics examined in terms of nutrient supply.

  • Survival analysis of sow longevity and lifetime reproductive performance – Review
    75-80
    Views:
    731

    Sow longevity plays an important role in economically efficient piglet production. Improving sow longevity results increase in the productivity and profitability of a sow herd. Longevity is a complex trait with many factors that can contribute to a sow having a long and productive life. Not only the sow’s genetics, but also nutrition, environment and the management policies are important. In addition, the removal of non-productive sows along with the introduction of replacement gilts is an essential part of maintaining herd productivity at a constantly high level. The objective of this paper was to summarize the current knowledge about the sow longevity and lifetime performance values, as well as, discusses the survival analysis methods for sow longevity traits. This method can estimate the hazard rate indicating proportional risk of sows being culled at any given time, in addition, it is able to investigate the effects of different factors on longevity. Identifying factors that influence the longevity could assist many commercial pig producers in becoming more efficient.

  • Complexity of ecosystem services in agricultural fields, in particular the biodiversity
    43-51
    Views:
    253

    Since the Convention on Biological Diversity a lot of papers have been published how to measure and value biodiversity. In the last decades publications on agro-ecosystems become more frequent and play a significant role in the provision of ecosystem services. There is a uniform definition for biodiversity in general, however, in terms of agro-ecosystems and their services (including biodiversity) many weaknesses can be identified. The objective of this paper is to explore some of these problems with special regard to different definitions and terms and to the farmland ecosystem services. One solution could be to adopt a more complex system which has some ecological and environmental components (air, water and soil pollution) and also takes in to consideration the efficiency of agricultural production.

  • The significance of biological bases in maize production
    61-65
    Views:
    329

    The comparative trial has been set up in the Demonstration Garden of the Institute of Crop Sciences of the University of Debrecen, Centre for Agricultural and Applied Economic Studies, Faculty of Agricultural and Food Sciences and Environmental Management in 2012, with 24 hybrids with different genetic characteristics and growing periods. The soil of the trial is lime-coated chernozem, with a humus layer of 50–70 cm.

    The weather of the trial year was quite droughty; the monthly average temperature was 3–4 oC higher than the average of 30 years. High temperature, together with lack of precipitation occurred during the most sensitive phenophases of maize (flowering; fecundation, grain saturation).

    The following characteristics have been observed: starting vigour, date of male and female flowering, plant and cob height, dry-down dynamics during maturation and the change of yield composing elements has also been quantified. The yield was recalculated to 14% moisture content grain yield after harvesting.

    The beginning of the growing period was advantageous, therefore the analysed hybrids could grow a high (above 300 cm) and strong stem. The yield of the hybrids changed between 10.33 and 11.87 t ha-1, but as a result of the unfavourable climatic extremes, their genetic yield potential prevailed only at a rate of 30–40%. However, moisture content by the time of harvesting was good despite its early date (12th September); it remained under below 14% in most cases. Dry-down was measured on a weekly basis between 14th August and 5th September.

    The analysis of the qualitative parameters of the maize hybrids (protein %, oil % and starch %) resulted in significant differences. The most significant difference has been observed in the case of protein content (LSD5%=2.01). Oil content was the most advantageous in the case of hybrids belonging to the mid-late growing group (FAO 400). The X9N655 and 36V74 hybrids had the highest oil content (around 4%), while hybrids P9915 and 37F73 had significantly lower oil content. Starch content was above 70% in the case of every hybrid.

    Hybrid selection is highly important in terms of yield and yield security of maize, as well as the application of modern biological fundamentals and hybrid specific technology for the improvement of the level of cultivation technology.

  • Penicillium chrysogenum antifungal protein (PAF) production in transgenic tobacco (Nicotiana tabacum) plant
    77-82
    Views:
    304

    Under the „Molecular farming” research program (product vaccines and substances for medical use with gene manipulated plant) in 2007 in UD Centre for Agricultural Sciences and Engineering Faculty of Agricultural Science Institute of Horticulture Department of Plant Biotechnology experiments were launched to transform tobacco plant by PAF antifungal protein. Our aim was to learn the transformation technics. We chose the
    Nicotiana tabacum and PAF as model systems.
    Our work was to express several different paf constructions in plants with nuclear and plastid transformation too. After that we confirmed the presence of paf gene in the level of DNA and RNA.

  • Strategic planning in agribusiness
    23-27
    Views:
    627

    Agricultural businesses operate in a complex and dynamic environment, with many challenges and opportunities. It is therefore essential for these businesses to have a strategic plan. It is a critical process that helps businesses navigate in a complex and uncertain environment and achieve long-term goals and objectives. In this article, we have conducted a bibliometric analysis of academic journals to investigate the extent to which strategic planning is a researched topic in agribusiness enterprises. We found that there is no concentrated research, with only three keywords appearing in the literature with at least five repetitions. Even of the two repetitions, only 22 were found. The clustering of keywords helps to identify research directions. The results of a survey of 134 enterprises were then presented. The majority of enterprises do not have a long-term plan or even a written vision. We found that SWOT analysis is still the most common planning method among the companies surveyed. It was also found that there is no difference between industries in this respect. Significant differences were only found in relation to company size, with all large companies having a strategic plan and the vast majority of SMEs not. Only 17 out of 132 firms have a plan longer than three years, and 32 do not have any plan at all. Strategic planning can help to address many of the challenges in the agribusiness area, and it is therefore proposed to improve the proportion of firms planning through knowledge transfer.

  • Impacts of ethnoveterinary medicine integrated with livestock farm technologies on the performance and antimicrobial resistance of indigenous goats in South Africa –A review
    93-103
    Views:
    480

    Ethnoveterinary medicine and livestock farm technologies represent a junction of innovation and tradition with the aim to accomplish livestock systems that are resilient, productive, and sustainable to meet 21st century challenges, especially the antimicrobial resistance issue. This article aims to emphasise the impacts of integrating ethnoveterinary medicine with livestock farm technologies on the performance of indigenous goats in South Africa. With the growing concern over antimicrobial resistance in livestock, there is a pressing need for complementary approaches to the health of animals and their productivity. In this review, the aim evaluated whether an integrative approach could offer a sustainable alternative that benefits animal health and productivity while addressing the concerns of antimicrobial resistance. Comparative study designs across multiple indigenous goat farms were used to integrate specific medicinal plants in ethnoveterinary medicine with present-day livestock technologies that are used to monitor the effects on livestock performance indicators and antimicrobial resistance patterns. In the treated populations, the outcomes were indicative of substantial improvements in reproduction and growth rates, and alongside, there has been a notable decrease in the markers of antimicrobial resistance. Therefore, it is proposed that through these discoveries, the integration of these traditional and modern approaches not only improve the performance of indigenous goats but also contribute immensely to the mitigation of risks associated with antimicrobial resistance.

  • On the connection between spatial development and sustainable landscape in the Northern Great Plain region
    145-148
    Views:
    198

    This paper tries to find connection between sustainable landscape and spatial development policy of the Northern Great Plain region on the basis of specific examples explained in scientific literature. Searching for the common roots of spatial development and sustainability the paper explains two interpretations of sustainability from the view point of landscape, than the most significant element of current landscape change – the polarization of landscapes – will be introduced. This trend in landscape change basically determines the direction of spatial development. This paper analyses the Northern Great Plain region from two different approaches. In the first grouping the region is exposed from the view point of spatial development. In the second partitioning the area is divided into subject matters based on the principles of sustainability and polarization of landscape. This research – analyzing development plans and strategies – considers the current situation within the subject matters.

  • Variability examination of photosynthetic pigment content and specific leaf area in individual maize (Zea mays L.) plants
    153-157
    Views:
    514

    Currently, maize is one of the most important crops (Zea mays L.) both globally and in Hungary. We compared physiological parameters of a maize genotype – p9903 – at two different experimental sites in a field experiment. Furthermore, we examined these parameters’ variability in individual plants on the leaves with different ages. Absolute chlorophyll content of the leaves were analysed, separately that of chlorophyll a and chlorophyll b. We also measured the absolute carotenoid contents of leaves. Furthermore, we calculated these photosynthetic pigments’ content ratio. Specific leaf area (SLA) and dry matter weight were also measured in order to characterise plant production. The results obviously reflect the decreasing in the efficiency of photosynthetic apparatus on the low yield site. Otherwise, we identify significant differences only in certain cases of leaves.

  • Plant production possibilities on a heavy metal contaminated soil with the purpose of biorefinery
    215-222
    Views:
    283

    Significant part of not cultivated area of Hungary is not suitable for agricultural utilization because of industrial
    pollution. Technologies of biorefinery make reutilization of contaminated areas possible. Biomass of plants
    produced on polluted soils can be raw material of valuable products. Applicability of biorefinery was tested on a
    heavy metal polluted soil, where the contamination originated from previous mining activity. Complete biomass
    utilization was aimed to obtain cosmetic ingredients, pharmaceutical agents, and precursors. During our research
    work 88 plant species and varieties were produced and tested for potential utilizable components. Levels of
    possible contaminants in these plants were monitored, and amounts of carbohydrates, protein, organic acid and
    cellulose were determined as well. Different plant extracts were tested as potential sources of biologically effective
    components or as raw materials for lactic acid fermentation. Our results show that biorefinery is a real possibility
    for utilization of polluted areas. Numerous plants could be cultivated on contaminated areas without increased
    levels of contaminants in their tissues, thus they can be sources of valuable compounds.

  • The possibilities of biomass utilization in the field of spatial development
    59-63
    Views:
    204

    By joining the European Union, Hungary made a commitment to increasingly utilize renewable energy sources. Keeping in view the agricultural circumstances of Hungary, we can state that biomass utilization has, overall, the greatest range of possibilities to use its products as ‘energy sources’. Biomass raw materials are useful in meeting emission control regulations for environment protection and to reduce climate change. The role of biomass production in spatial and rural development and in rural employment, and also in the decrease of Hungary’s energy dependence, supports development in biomass energy use. My aim in studying biomass utilization is the creation of a micro-regional level, decentralised, agro-energetic system-model for the use of plant and animal biomass for energy purposes, whether naturally or by anthropogenic activity, on agro- and sylvicultural areas, and on animal breeding farms. This model simulation method serves as a planning base for policy-makers during the spatial planning processes. The examination is presently in the stage of data collection. The collection of the basic data of the examination area and the purchase of the necessary equipment, materials and maps has already started. Contact has been made with local stakeholders, municipalities, municipality associations and micro-region managers.

  • Productivity and Nutrient Reaction of Maize Hybrids
    78-83
    Views:
    390

    Several factors influence the quantity and stability of maize yield, the most important being the nutrient supply, the hybrid and precipitation. In 2004, during the maize growing season the precipitation was more than the 30 year’s average, with 68.3 mm, but the distribution was unfavorable. The experiment was carried out in Debrecen at the Experimental Station of the University of Debrecen Centre of Agricultural Sciences, Department of Crop Production and Applied Ecology. We tested 10 various hybrids with their own genetic characteristics for five different fertilizer doses, in addition to the parcels without fertilization.
    The favorable results reached were due to the rainy season. The average yield varied between 7.78-9.67 tha-1. The DK 440, PR37M34, PR38A24, PR39D81 and PR36R10 of the hybrids reacted to higher fertilizer doses with significant growth yields, the yield (more than 11 tha-1) was the highest for N200, P125, K150 fertilizing. The other hybrids, DKC 5211, Mv Vilma and MV Maraton, gave similar results at the N120+PK fertilizer dose and the ensuing doses depressed the yield. Fertilization was more effective thanks to the precipitation. The fourth and fifth dose increased or decreased maize yield depending on the nutrient reaction of the hybrid. The agro-ecological optimum of NPK fertilization was N120, P75, K90 kgha-1.
    During the experiment we tested the moisture loss of five hybrids. The rainy crop year’s effect on the seed moisture content at harvest was higher than in previous years. The seed moisture content hybrids at harvest which have shorter crop years (FAO 300) was 18-19%, and hybrids with longer vegetation periods had more than 20% seed moisture content. DK 440 hybrid had the intensive moisture loss of the five hybrids, at the start of the measurement, the seed moisture content was higher than 40%, and it decreased to 18.6% by harvesting.

  • The influence of primary soil tillage methods and foliar nutrient provision on the growth, yield, and associated traits of winter barley (Hordeum vulgare L.)
    19-26
    Views:
    602

    Sustainable agricultural practices are vital for ensuring global food security. Factors such as soil, weather, and agronomic practices, including nutrient supply and tillage systems, play key roles in sustainable crop production. A field experiment at the Hungarian University of Agriculture and Life Sciences in Godollo, Hungary, assessed the impact of primary soil tillage methods and foliar nutrient supplementation on winter barley yield and traits. Using a split-plot design with three replications, the study examined four nutrient treatment (control, Bio-cereal, bio-algae, and MgSMnZn Blend) and two tillage methods (plowing and cultivator). The obtained results indicated no significant influence of tillage treatments on SPAD value, leaf area index (LAI), plant height, or spike length. However, nutrient treatments significantly (P<0.01) affected LAI, plant height, and thousand kernel weights. Both nutrient and tillage treatments significantly (P<0.01 and P<0.05) influenced tiller number and grain yield, with significant (P<0.01) interaction effects observed for grain yield and kernel weight. The combination of Bio-cereal nutrient treatment with plowing tillage produced the highest values across parameters. Thus, integrating bio-cereal nutrient supplementation with plowing tillage is better for optimizing winter barley yield.