Wyniki wyszukiwania

1

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Financial feasibility of short rotation energy crops in Hungary - a case study

100%

Deak Z., Ferencz A.

Roczniki Naukowe Stowarzyszenia Ekonomistów Rolnictwa i Agrobiznesu

|

2017

|

tom 19

|

nr 3

Biomass is a readily available, renewable and environmentally friendly source of energy. Exploiting renewable organic matter for energy production is showing a growing tendency worldwide including in Hungary. Forest plantations with large numbers of plants (short rotation coppices) that provide a homogeneous, locally available raw material of various fast growing deciduous wood species are broadly supported. In our research we have investigated the financial viability of a short rotation energy forest plantation in the Kunság region of Hungary. Both the EU and Hungary provide economic incentives for the creation and propagation of bio-energy producing facilities. Our results show that the enterprise could not generate profit for the period examined without the help of such subsidies. There are several obstacles that farmers are facing such as the initial high capital outlay, technological shortcomings of the harvesting methods, high logistics costs and suppressed purchasing prices.

2

Sensitivity of selected energy crop to increased copper content in soil

86%

Kocon A., Stanislawska-Glubiak E., Korzeniowska J.

Zeszyty Naukowe Uniwersytetu Przyrodniczego we Wrocławiu. Rolnictwo

|

2013

|

tom 107

3

Kinetics of growth of Japanese knotweed (Polygonum cuspidatum Siebold and Zucc.)

86%

Gregorczyk A., Fiejtek A., Wereszczaka J.

Colloquium Biometricum

|

2009

|

tom 39

4

Emissions from the production of chemical fertilisers and fuel consumption in various technologies of energy crops cultivation

86%

Konieczna A., Pasyniuk P.

Acta Agrophysica

|

2016

|

tom 23

|

nr 4

The paper presents the results of a study on the impact of the cultivation of crops which may serve as a substrate for a biogas plant on the atmosphere. Subjects addressed in the study cover a range of issues related to greenhouse gas (GHG) emissions from this area of agricultural activity. The amounts of carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O) emitted to the atmosphere in the selected cultivation technologies of beet, maize for silage and grasses were calculated. Emissions of GHG from chemical fertiliser production corresponding to the quantities used in the individual technologies were analysed, and amounts of the emitted above-mentioned pollutants originating from diesel fuel used during agricultural treatments conducted with the use of agricultural machinery were calculated. Emission values were expressed in equivalent units – E CO2eq. The study demonstrated that technologies which result in the highest quantities of emission are maize cultivation technologies – the average value for the study crops is 1 428 490.56 g haˉ¹ CO2eq. The lowest level of pollutants in the form of emitted greenhouse gases originates from grass cultivation and its average value is 904 661.28 g haˉ¹ CO2eq.

5

Second generation energy crops and farmland birds - Central and East European perspective

86%

Kaczmarek J. M., Tryjanowski P.

Journal of Plant Protection Research

|

2016

|

tom 56

|

nr 3

The development of cellulosic bioethanol and other second-generation (2G) biofuels has gone through various phases during the last few years. The prospect of technological breakthroughs stimulates extensive research on turning cellulose into bioethanol or biodiesel. Agricultural or forestry residues and some plants, referred to as ‘lignocellulosic energy crops’ or ‘second generation (2G) energy crops’ can provide feedstock for new types of biofuels. The impact of lignocellulosic energy crops on farmland birds has been relatively well studied. This is surprising since the technology of converting these crops into fuel has so recently been developed. However, we believe that some questions regarding potential bird use of 2G energy crops have still not been answered. In Europe, most research has been carried out in agricultural areas of Western Europe. However, Central & Eastern Europe host the highest densities of farmland birds and, in general, the highest biodiversity. There is huge potential for 2G energy cropping due to large areas of mainly marginal land. We have outlined possible discrepancies between the results obtained from W. Europe and potential relationships between birds and 2G energy crops in Central Europe.

6

The influence of moisture content of selected energy crops on the briquetting process parameters

86%

Kowalczyk-Jusko A., Kulig R., Laskowski J.

Teka Komisji Motoryzacji i Energetyki Rolnictwa

|

2011

|

tom 11

7

Genetic and nongenetic factors influencing callus induction in Miscanthus sinensis [Anderss.] anther cultures

86%

Glowacka K., Jezowski S.

Journal of Applied Genetics

|

2009

|

tom 50

|

nr 4

341-345

Miscanthus sinensis is a promising species for biomass production. Influences of genetic and nongenetic factors on androgenesis induction efficiency were investigated. This is the first report on successful induction of pollen-derived callus in M. sinensis. The callus yield was strongly affected by genotype. A beneficial influence of cold pretreatment of spikes on androgenesis induction was observed. The highest yield of calli was obtained in cultures on a modified C17 medium. The results suggest that the high callus yield might be caused by the late culture initiation. The beginning of anther culture at the end of the flowering season caused a 17-fold increase in callus yield, in comparison to culture initiated at the height of the flowering season (August). It is likely, however, that the efficiency of androgenesis induction in the case of M. sinensis anther culture beginning in October could be related to a positive influence of growing donor plants in conditions of cooler and shorter day, i.e. 11-h day with temperature around 11°C and 13-h night with temperature around 5°C. Results of this study can significantly support the development of effective methods of M. sinensis haploidization, which could be used in crop improvement by breeding.

8

Physiological responses of energy crops to drought

72%

Choluj D., Podyma K., Rotocki M.

Acta Physiologiae Plantarum

|

2007

|

tom 29

|

nr 1 Suppl.

9

The sustainable agricultural land potential for energy crop production in Germany and Poland

72%

Simon S.

Polish Journal of Agronomy

|

2012

|

nr 09

10

The agricultural sector and bioenergy production

72%

Schenkel Y., Crehay R., Delaunois C., Schummer J.

Teka Komisji Motoryzacji i Energetyki Rolnictwa

|

2003

|

tom 03

11

Overview of technological methods of energy production from biomass

72%

Kowalska A.

Teka Komisji Motoryzacji i Energetyki Rolnictwa

|

2010

|

tom 10

12

Energy crops and bioenergetics in the Czech Republic

72%

Heneman P., Cervinka J.

Annals of Warsaw University of Life Sciences - SGGW. Agriculture

|

2007

|

nr 51 Agric.Forest Eng.

73-78

13

Biomass as an energy source

72%

Lis W.

Intercathedra

|

2011

|

tom 27

|

nr 4

Basic source of a renewable energy in Poland is a biomass. It results from the calorific value of a wood, good accessibility and relatively low cost of a wood raw material. This paper focuses on certain aspects of use of the biomass as a source of energy in Poland as well as its economic implications.

14

Investigations into the process of rotary mowing of selected energy crops

72%

Rode H., Witkowski P.

Teka Komisji Motoryzacji i Energetyki Rolnictwa

|

2014

|

tom 14

|

nr 3

15

Possibilities of using perennial energy crops in reclamation of degraded land

72%

Radwanska K., Zadrozniak B., Mystkowska I., Baranowska A.

Economic and Regional Studies

|

2016

|

tom 09

|

nr 4

Subject and purpose of work: The work is of a review character. The present paper aims to introduce basic definitions related to degradation and reclamation of the areas with lower use value, and also to present the most important species of perennial energy crops, which can be possibly used in the reclamation of degraded soils. Materials and methods: This work is based on collected information concerning soil degradation, perennial energy crops and their use in the reclamation. Results and conclusions: Characteristics of recommended species of perennial energy crops to a reclamation of degraded soils: willow, Virginia fanpetals, the Jerusalem artichoke, giant miscanthus, amur silver-grass, prairie cordgrass, rosa rugose, black locust, ashleaf maple has been presented. The analysis of the soil degradation in Lublin Voivodeship has been based on the professional literature. On that basis, the plants which would be the best in the reclamation of this area have been chosen. This work also takes into account the estimated costs of establishing plantations of these plants

16

Agricultural and forest biomass as feedstock in the manufacture of solid biofuels

58%

Stolarski M., Graban L., Szczukowski S., Tworkowski J.

Polish Journal of Agronomy

|

2010

|

nr 02

17

The economics of oil-seed crops for energy use: a case study in an agricultural European region

58%

Robles R.

Zeszyty Naukowe Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie. Problemy Rolnictwa Światowego

|

2011

|

tom 11(26)

|

nr 3

There’s a strong link between the production of biofuels and energy crops. The first of these activities may contribute to the appearance of new products in agriculture, besides giving a boost to activities such as provision of services and aiding in the diversification of economic activities in rural areas. Farmers’ final decision to include energy crops into or exclude them from their productive alternatives depends on various factors of a different nature (political, legal, technical, economic or socio-cultural). This paper analyzes the socio-economic aspects related to the introduction of oil-seeds (sunflower and rape seed) as energy crops in one of the most important agricultural regions in Spain (Castile and Leon). Thus, using RRA (Rural Rapid Appraisal) and the Economic Accounts for Agriculture (EAA), the study provides an evaluation of the main economic accounts of these crops and an idea of their profitability, impact on the level of employment and environmental consequences.

18

Support for energy crops

51%

Krzyzanowska Z.

Polish Food

|

2006

|

nr 4

Ograniczanie wyników

Financial feasibility of short rotation energy crops in Hungary - a case study

Sensitivity of selected energy crop to increased copper content in soil

Kinetics of growth of Japanese knotweed (Polygonum cuspidatum Siebold and Zucc.)

Emissions from the production of chemical fertilisers and fuel consumption in various technologies of energy crops cultivation

Second generation energy crops and farmland birds - Central and East European perspective

The influence of moisture content of selected energy crops on the briquetting process parameters

Genetic and nongenetic factors influencing callus induction in Miscanthus sinensis [Anderss.] anther cultures

Physiological responses of energy crops to drought

The sustainable agricultural land potential for energy crop production in Germany and Poland

The agricultural sector and bioenergy production

Overview of technological methods of energy production from biomass

Energy crops and bioenergetics in the Czech Republic

Biomass as an energy source

Investigations into the process of rotary mowing of selected energy crops

Possibilities of using perennial energy crops in reclamation of degraded land

Agricultural and forest biomass as feedstock in the manufacture of solid biofuels

The economics of oil-seed crops for energy use: a case study in an agricultural European region

Support for energy crops