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Effects of soil cultivation and environmental changes on maize yield
97-100Views:308We evaluated the relationships among soil cultivation and other agrotechnical factors (fertilization, number of plants and hybrid) within the framework of a multifactorial long-term experiment set at the Látókép Experimental Site of the Centre for Agricultural Sciences of the University of Debrecen in mid-heavy chalcareous chernozem soil based on a long-term experiment conducted for a 5-year period (2002–2006).
Based on the evaluation of soil cultivation by the average of treatments, it may be assessed that spring ploughing (8.204 t ha-1) provides more favourable conditions to the stand compared to spring shallow cultivation; however, this did not result in a significant difference. Spring ploughing considerably increased the yield of hybrid FAO 300 in dry years, whereas it considerably increased the yield of hybrid FAO 400 in favourable crop years. A stand of 70 thousand stems/ha provided the higher yield result in both soil cultivation types. It was sufficient to use a fertilizer dose of 120 kg N ha-1 for economical production.
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The scientific background of competitive maize production
33-46Views:1061The effect and interaction of crop production factors on maize yield has been examined for nearly 40 years at the Látókép Experiment Site of the University of Debrecen in a long-term field experiment that is unique and acknowledged in Europe. The research aim is to evaluate the effect of fertilisation, tillage, genotype, sowing, plant density, crop protection and irrigation. The analysis of the database of the examined period makes it possible to evaluate maize yield, as well as the effect of crop production factors and crop year, as well as the interaction between these factors.
Based on the different tillage methods, it can be concluded that autumn ploughing provides the highest yield, but its effect significantly differed in irrigated and non-irrigated treatments. The periodical application of strip tillage is justified in areas with favourable soil conditions and free from compated layers (e.g. strip – strip – ploughing – loosening). Under conditions prone to drought, but especially in several consecutive years, a plant density of 70–80 thousand crops per hectare should be used in the case of favourable precipitation supply, but 60 thousand crops per hectare should not be exceeded in dry crop years. The yield increasing effect of fertilisation is significant both under non-irrigated and irrigated conditions, but it is much more moderate in the non-irrigated treatment.
Selecting the optimum sowing date is of key importance from the aspect of maize yield, especially in dry crop years. Irrigation is not enough in itself without intensive nutrient management, since it may lead to yield decrease.
The results of research, development and innovation, which are based on the performed long-term field experiment, contribute to the production technological methods which provide an opportunity to use sowing seeds, fertilisers and pesticides in a regionally tailored and differentiated way, adapted to the specific needs of the given plot, as well as to plan each operation and to implement precision maize production.
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Effects of different crop years and sowing date on maize yield
93-96Views:347We carried out the tests in the flood meadow soil formed on the alluvial cone of Nagykereki, Sebes-Körös belonging to the Bihar plane small region. The aim of the study was to analyse the effect of the different sowing date of maize on the yield trend based on a comprehensive study conducted for 6 years (2007–2012).
The sowing date of maize hybrids is a factor that significantly influences yield, however, its effect is not significant in each crop year. In the years when the date of sowing has a modifying effect, the reliable yield level can be reached with optimal sowing date management (24 April).
The advantage of early sowing (10 April) proved to be dominant in the year of 2012, the seeds were placed into the still wet soil therefore shooting was more balanced. Maize seeds sown at the time of optimal (24 April) and late (10 May) sowing dates were placed into the already dry soil, which deteriorated germination and the strength of early initial development that had an effect on the yield.
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Dr. Oszkár Tóth awarded by „Antal Gulyás medallion for crop protection“ in 2011 (laudation)
11-15Views:246The Public Utility for Development of Crop Protection Teaching (NOFKA) and The Hajdú-Bihar County Regional Association of Hungarian Chamber of Crop Protection Specialists and Plant Doctors (Chamber) established a joined Award Committee in September of 2011, which intend to serve as moral appreciation to prominent persons with excellent achievements by awarding the „Antal Gulyás medallion for crop protection” which are available for outstanding teachers, researchers, and practical crop protection specialists. The biography of late Antal Gulyás distinguished professor of plant pathology is available in a separate article of this issue.
The first person to be decorated with the „Antal Gulyás medallion for crop protection” is Dr Oszkár Tóth retired reader of plant pathology for his excellence in teaching crop protection. Dr Oszkár Tóth had been involved in teaching - by delivering both lectures and practical lessons - crop protection, namely plant pathology in the legal predecessor institute of Debrecen University for more than 30 years where generations of crop protection specialists were encouraged to get a thorough knowledge in plant pathology. The one-time students of the splendid teacher welcome and congratulate to the award, moreover wish him peaceful and happy years. -
Mapping agricultural performance and environmental parameters aimed at generic regional studies
29-34Views:519In 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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Integrated development strategy of the catchment area of the Tisza river
31-36Views:279The main challenge for mankind has always been to eliminate the borders of its living space, as well as to explore and discover its new faces. Contemporary literature strengthens this postulate. It is the preference of the experts of various fields in spatial analysis is to consider space to be repairable, changeable and organisable. In accordance with this axiom, the five affected countries in the catchment area of the Tisza river (Hungary, Romania, Ukraine, Slovakia and Serbia) worked out an integrated, mutual standpoint to support the problems of the catchment area and to exploit its opportunities with the aim to support transnational cooperation. They laid great emphasis on the existing resources which could become the driving force behind regional development directions. This study contains the summarised outcomes of the TICAD project (SEE/A 638/4.2./X) which was drawn up as a result of cooperation between renowned institutions of the five affected countries within the South East Europe Transnational Cooperation Programme (lead partner: VÁTI, Hungary).
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Virtual Soil Information Systems in the Bihar Subregion and at Tedej Corp
186-189Views:457After evaluating the sample sites’ soils and environmental status, we built up 2 different soil information systems. The first relies on analog data (soil maps), and is based on a regional model; its sample site is the Bihar sub-region. The second is a complex, field scale virtual 3D system, based on several types of data sources. (Aerial photos, GPS, field samples, hyper and multispectral images, soil maps). In this paper, we analyze and evaluate these systems. The greatest advantage of the models is that, with their usage, we can reveal connections which cannot be made by analyzing the individual elements of our data sources. We discovered that with the help of our systems, the monitoring and evaluating of the processes taking place in the soil is more fast and simple.
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The Biology, Ecology and Medicine Faculty of Dnipropetrovsk National University after Oles’ Gonchar
15-17Views:178The historical rewiev of Biology, Ecology and Medicine Faculty is presented. The Faculty of Biology, Ecology and Medicine has 7 Departments, Aquarium complex, Zoological Museum, Vivarium and Herbarium. It works in cooperation with the Research Institute of Biology, Botanical Garden, O. L. Bel’gard International Biosphere Station, and Biological Station of DNU and forms the regional Centre of Science, Education and Culture in the field of Biology, Ecology and Nature Conservation in Central Ukraine. The Faculty proposes courses in the following specialities: Biology, Zoology, Botany, Microbiology and Virology, Biochemistry, Physiology, Ecology, Environmental Protection and Balanced Nature Management. All of them have the highest IV level of accreditation. Students get a pedagogical education.
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Connections between the folk dance culture and regionality in the area of Derecske and Mikepércs
49-54Views:252The culture of folk dance has been prominently cultivated in Hungary nowadays, however some regions are yet to be discovered by ethnographers. Stopping this gap by this time is almost impossible due to the small number of informants. Nevertheless, memories of ethographers’ collections, motion pictures, photographs, notes and the choregraphies made from them endure, on the basis of which traditions can be reconstructed, that were so typical of some townships at one time and have been forgotten by now. What can a recreated tradition mean to a community, that sometime was left to waste by them? This is the problem the article is dealing with through the history of Derecske and Mikepércs, two townships in Hajdú-Bihar county, revealing the regional relationship system as well as late and recent potentials of the area.
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Distribution and damage of bacterial canker on lemon bushes in the conditions of the Southern part of Azerbaijan
41-49Views:221This paper summarises and presents the results of two-year (2020–2021) field and laboratory studies on the spread and harmfulness of bacterial canker of citrus crops (Xanthomonas citri (Hasse) Dowson.) on mid-ripening lemon cultivars (Citrus limon L.). Experimental field research conducted by us in 2020–2021. It has been established that bacterial canker (Xanthomonas citri) is found mainly on lemon bushes (Citrus limon L.). The pathogen also causes canker (Xanthomonas citri) on kinkans (Fortunella margarita (Lour) Swingle.), poncirus (Poncirus (L.) Raf.), lime (Cirtus aurantiifolia (Christm.) Swingle.). Japanese cultivars of oranges (Citrus sinensis (L.) Osbeck.) and citron (Citrus medica L.) are distinguished by significant tolerance. The most resistant are tangerines (Cirtus reticulata Blanco.) – they are almost not affected by bacterial canker (Xanthomonas citri).
We have established environmental factors that contribute to the wide spread and development of bacterial canker (Xanthomonas citri) on lemon bushes in the southern part of Azerbaijan.
The main indicators of the harmfulness of bacterial canker (Xanthomonas citri) have been identified. The potential for the death of canker-infected lemon fruits has been established. The characteristic features of external and internal signs of the disease were established. A scheme for combating bacterial canker (Xanthomonas citri) has been developed, and the optimal concentration of fungicides that retard the growth and development of pathogens has also been established. Photographs of bacterial canker (Xanthomonas citri) damage to lemon fruits are presented.
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Application of advanced environmental assessment methods in orchard management
221-225Views:344Our reseaches were carried out in apple and pear orchards at Farm and Regional Research Institute in Pallag of the University of Debrecen and Pear Gene Reservoir in Újfehértó. Aim of this study is to interpret and analyse field studies with the aim of a GIS based database. Furthermore, beside field measurements, airborne and field hyperspectraldatacollection and analysis were also made to facilitate special watermanagement and irrigation related surveys. The integration of unified, geoinformatics systems with high spatial resolution and calibrated airborne hyperspectral data are appropriate tool for decision support systems, which support the continuous update and actualization of the changing cropping data, the analysis of cropping results in a unified complex data system, the acquiring of agro environmental subsidies, the establishment of monitoring system, and the optimization of irrigated fruit production.
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The impacts of spring basal and side dressing on maize yield
83-86Views:342The yield potential of maize is very high. According to Tollenaar (1983), maize yield potential is as high as 25 t ha-1 (absolute dry yield) which is the highest among all cereals. In order to fully utilise this high yield potential, proper nutrient replenishment is of chief importance among all agrotechnical factors.
The aim of research was to examine the effect of nitrogen fertiliser applied as basal and side dressing on maize yield.
The measurements were performed at the Látókép experiment site (47° 33’ N, 21° 26’ E, 111 m asl) of the Centre for Agricultural Sciences of the University of Debrecen on mid-heavy calcareous chernozem soil with deep humus layer in an established experiment in 2011, 2012 and 2013. The trial design was split-split-plot with two replications.
Based on the experiment results, it can be established that the nutrient uptake of maize is greatly dependent on the amount of water store in the soil. From the aspect of the development of the maize plant and water supply, the most determinant factor was the distribution of precipitation over the growing season and not the amount precipitation. This is shown by the fact there was only 276 mm precipitation – which was favourably distributed – in 2012 to increase the availability of nutrients and the main average was the highest in this year (14.394 t ha-1).
Spring basal dressing helped maize development in all three years even on chernozem soil which is well supplied with nutrients. Although the effect of side dressing did not result in any yield increase, it could still contribute to mitigating the stress effects caused by environmental factors. Altogether, nutrient supply adapted to the various development stages of maize can favourably affect the success of maize production.
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”FOR CROP PROTECTION” Establishment medallion in honour of Antal Gulyás (1884-1980)
5-10Views:276The Public Utility for Development of Crop Protection Teaching (NOFKA) and The Hajdú-Bihar County Regional Association of Hungarian Chamber of Crop Protection Specialists and Plant Doctors (Chamber) established a joined Award Committee in September of 2011, which intend to serve as moral appreciation to prominent persons with excellent achievements by award Antal Gulyás medallion for crop protection“ which are available for outstanding teachers, researchers, and practical plant protectionists.
The members of Committee: dr. István Szarukán, president, dr. György Kövics, secretary, dr. István Dávid member (Public Utility), dr. László Kiss, president, dr. Gábor Tarcali, secretary (Chamber). Handing over of medallion, charter and gold badge will be happened generally once a year in a special ceremony. The award was established in commemoration of Antal Gulyás, who was the first eminent professor of plant protection in Debrecen and reached outstanding achievements in the field of teaching of agronomists for more than 30 years, and research on plant pathology. He became one of the first Honoris Causa Doctors of Debrecen Agricultural University in 1978. The Committee made its decision on the first meeting that the first medallion will be award to dr. Oszkár Tóth retired reader of plant pathology for his excellence in teaching plant protection in 2011. His laudation is available in a separate article of this issue. -
Effects of the development of production factors on productivity
13-18Views:253In every economic sector, the enacted and expected quality of the products strongly affects its market entry and subsistence. The aim of management is success, competitiveness and subsistence that require adequate human and material resources and enough production stock. We must also notice that the quality of tools and instruments significantly influences work productivity. This applies to both plant production and animal husbandry.
The author researched milk production factors with methodical observation, document analysis and interviews. Data were collected with a ten-year interval, thus this assay can highlight the field, volume and sources of investments during this period and that the production stock increased in most farms and decreased in few. The data also shows the influence of investments on work productivity - there are differences between farms of equal size, so there are still ways of development.
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The significance of local meteorological stations in research planning
87-91Views:420The goal of research planning is to optimize human and material resources while maximizing efficiency. If there are databases that can be used as a substitute for own data collection, effective research can be facilitated by reallocating resources. In the case of environmental studies, the knowledge of the climatic conditions of the study period is known to be a key factor in research planning process.
In the present study, the data of our meteorological station in our research area (known as “Szamárháti Tanya”, Kesznyéten, Hungary) was compared with the measurements of meteorological stations operated by the competent water authority. Stations were taken into the study within a 10 and 20 km radius over a period of 21 months, to determine which provided more relevant data from the area.
During the evaluation of results, the relationship between the local and regional weather stations were determined, and deductions were made from the obtained results to support the decision which of the targeted investigations could be of greater benefit.
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The possibilities of biomass utilization in the field of spatial development
59-63Views:188By 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.
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Genetic diversity study of Hungarian honey bee (Apis mellifera L.) colonies – Previous announcement
61-64Views:621In Hungary, the Apismelliferacarnica is the native breed which is the only recognised and breedable honey bee in the country. It is assumed that there are a number of non-native and hybrid honey bee breeds in Hungary. The microsatellite and mitochondrial DNA surveys applied here will be utilised to easily and accurately identify the various sprads, and open up new ways in the research of honey bees. The isolation of the genomial DNS from 5 to 7 day old larvae samples was successfully carried out. In the future the plan is to carry out the measure with microsatellite markers. As an initial step the optimal annealing temperature was identified. In the mitochondrial DNA survey the COI-COII mytochonrial regional primer due to its low anneling temperature cannot be used with any normal sequencing methods. By using these method the aim of this research is the measurement of genetic variance.
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Objectives of the EU in the field of biomass use and utilisation
9-12Views:258The energy independence very important for the European Union, while simultaneously sparing the natural environment in order to increase the use of renewable energy sources . A further development is the key issue of how renewable energy sources available can be better utilized to improve the efficiency of economic competitiveness. EU renewable energy policy is determined by five principles : The first is the environment, including the carbon dioxide and other pollutants to reduce emissions . The second increase energy security and at the same time reducing dependence on imports. The third aspect of local and regional development. With this realignment of economic and social development levels of different areas they want to achieve. This point is closely related to rural development and create new jobs . The transformation of the agricultural structure is an important aspect , which is that they can reduce the overproduction of food by providing alternative land use options , such as the cultivation of energy crops.
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The effect of β-glucan, carotenoids, oligosaccharides and anthocyanins on bacteria groups of excreta in broiler chickens
15-20Views:790This study was conducted to examine the effect of natural compounds, such as β-glucan, carotenoids, oligosaccharides, and anthocyanins in the diet on bacteria gropus of excreta in Ross 308 broiler chickens. Chickens were fed 5 diets: control (basal) diet, a diet supplemented by β-glucan at 0.05%, and diets supplemented by carotenoids, oligosaccharides, or anthocyanins at 0.5% of each compound. On experimental day 19, excreta were collected to determine the proportion of Lactobacillus, Bifidobacterium, Campylobacter, Clostridium, and Escherichia coli. Samples were collected aseptically and snap-frozen in liquid nitrogen. Bacterial DNA was isolated from samples, then polymerase chain reaction using primer pairs designed to the 16S rDNA of bacterial groups were applied to define the proportion of the mentioned bacteria. Another universal primer pair was used to amplify a region of 16S rDNA of all the examined bacteria. Proportion of each bacterial groups was determined relatively to the intensity of universal PCR product band by gel documenting system and ImageLab software. Based on the results, carotenoids and anthocyanins increased the proportion of Bifidobacterium, which might imply the beneficial effects of the mentioned compounds on the bacteria composition of excreta.
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Optimization of Density of Sugar Beet (Beta vulgaris L.) Production Quotas by Pointwise Geostatistic Methods
46-50Views:402The regional distribution of the Hungarian sugar beet production quotas was developed by the conventional concurrency relationships. In our research we analyzed 320 sectors of 9 factories with geostatistic methods in a GIS environment. The applied researches of spatial mean, spatial deviation, deviational ellipse have been introduced by us in this speciality. We used two different methods in our optimization inquiries, where the spatial segment of the standard deviational ellipse was based on a more robust preliminary data processing solution, and this is why it is a less parametricable method. The inquiry of the spatial buffer zones in production sectors ensures an obvious optimization possibility. We considered the supply route distances in both cases as a modeling boundary condition. Our results show that we introduced an effective decision making method to the occurent replanning of the production sectors with the pointwise density inquiries and the geometric analogy that was fitted to it.
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Element content analyses in the Institute for Food Sciences, Quality Assurance and Microbiology
203-207Views:385The role of chemical elements to ensure and promote our health is undisputed. Some of them are essential for plants, animals and human, others can cause diseases. The major source of mineral constituents is food, drinking water has a minor contribution to it, so the knowledge of elemental intake through food is crucial and needs continuous monitoring and by this way it promotes the food quality assurance and dietetics.
With the evolution of spectroscopic methods increasingly lower concentrations could be determined, so the elemental composition of a sample could be more precisely and fully described. Due to the results the gathered knowledge up to the present is supported and new observations can be done helping us to understand such complex systems as biological organisms are.
The quality of a food is determined by the full process of its production, consequently it starts with agricultural production so elemental-analysis usually cover the whole soil – plant – (animal) – food chain, by this way the „Fork-to-Farm” precept is true in elemental analysis field also.
The history of elemental analysis in the University of Debrecen, Centre for Agricultural and Applied Economic Sciences, Faculty of Agricultural and Food Sciences and Environmental Management, Institute of Food Processing, Quality Assurance and Microbiology goes back to 1980s when the so called Regional Measurement Central gave the background for research. The continuous deployment resulted in an obtain of an inductively coupled plasma atomic emission spectrometer (ICP-AES) in 1988, which extended the scope of examinations due to its excellent performance characteristics
compared to flame atom absorption (FAAS) and flame emission spectrometers (FES). The instrumental park retain up to date correlate to the developing analytical techniques due to acquiring a newer ICPAES in 1998 and an inductively coupled plasma mass spectrometer in 2004 – which sensitivity is three order of magnitude better compared to ICP-AES. The Institute supports the work with its own ICP-AES and ICP-MS since 2011. -
Preservation of Biological Diversity of Domestic Animals in Hungary
18-29Views:302Since the 1992 Rio de Janeiro UNO Congress domestic animals belong also officially to the genetic diversity of the world. Non commercial domestic animal breeds should be maintained for many cultural and technical reasons. Conservation and preservation of living beings is nowadays in the programme of many regional, national and international organizations.
The preservation of domestic animals is possible in situ (at the original place and conditions) and ex situ (by cryogenic methods).
There are three era in the history of preservation of domestic animals: the epoch of spontaneous maintenance, the period of sporadic national activities and the era of international programme.
Some of the questions to be solved by scientific research: the principles of selection of the candidate populations for maintenance, the different degrees of endangeredness, the necessary population size to be subsidized, the problem of inbreeding, the best mating systems etc.
In Hungary the maintenance of endangered domestic animal breeds is based upon the low.
The following breeds are on the list of protected breeds:
− the Hungarian Grey cattle,
− the Lipizzan, Shagya, Nonius, Gidran, Furioso,Kisbér Halfbred, Murinsulaner and Hucul horses,
− the Racka, Tsigai and Cikta sheep,
− the Mangalitsa pig,
− the Hungarian yellow, white, speckled and the Transsylvanian naked necked hen,
− the Bronze Turkey,
− the Frizzle Feathered goose.
Hopefully in the near future the breeders of traditional domestic animal breeds will find the possible niches for their special products. -
Estimating the amount and heating value of wood waste burned in households based on FICM HWP model output data
79-84Views:437A 2009 study published by the Regional Centre for Energy Policy Research (RCEPR) sparked significant debate within the Hungarian forestry and wood industry sectors. The study suggested a substantial shortfall in the balance of solid bioenergy biomass usage and sources, which it attributed to large-scale illegal logging. The Bio Screen CCE Project updated this analysis and quantified a 37.2 PJ (43%) deficit in the solid bioenergy biomass balance for 2019. This study investigates the extent to which household wood waste burning could account for this shortfall. Using the Forest Industry Carbon Model (FICM) HWP submodel, the authors estimate that over 1.2 million m³ of wood waste may be burned annually in households. The heating value of this burned wood waste for 2019 is estimated at 14 PJ, explaining 39% of the shortfall identified in the Bio Screen CCE Project’s 2021 report.
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Innovation Potential and Regional Competitiveness studies in the Northern Great Plain region
223-228Views:2101.5 million people live in the large region containing 3 counties, which makes it the second most populated region after Central Hungary. Its economy and land use are still defined by agriculture and it has been the least developed region in the country for a long time. In the country this region has the second lowest GDP per capita and employment rate. In contrast to the low values of the economic indicators the region has high potential for innovation. The University of Debrecen is located in the region having one of the widest range of education and intensive research and development is also a characteristic of the region.
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Applicability of precision weed detection technologies
163-168Views:530In an agricultural field or horticultural plantation, weeds compete with cultivated plants for water and nutrients. The transpirated water by the weeds is needed to be replaced, which saddles surplus costs on the farmer, which could reduce the profitability of crop production. The aim of the precision plant protection system is to protect cultivated plants by applying site-specific technologies and optimized herbicides combination and methods, without environmental damage. The first step of precision weed control is the scouting for weeds. Traditional and modern (passive and active remote sensing) weed surveying technologies are available to detect weeds. The examination was carried out in an intensive apple orchard with drip irrigation system, protected by hail net of the Study and Regional Research Farm of the University of Debrecen near Pallag. The spectral-based weed detection was worked out by the Tetracam ADC broadband multispectral camera and the GreenSeeker 505 vegetation indexmeter. A strong correlation observed between vegetation indices and weed coverage. Based on the collected data, weed maps are created in appropriate software environment, thus the spatial distributions of the weeds are determined. The species level discrimination and the recognition of weed structural parameters were executed based on the 3D point cloud data by Leica ScanStation C10 laser scanner.