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• Plant production for biomass into energy: economics and energy efficiency view

  65-71

  Karol Wajszczuk

  Jacek Wawrzynowicz

  Benedykt Pepliński

  Views:

  137

  The aim of the paper was to determine the influence of the fertilization level on the energy and economics efficiency of the production technologies of selected crops processed into bioethanol or biogas. There were investigated the following crops: rye, triticale, wheat, sugar beets, maize, sorghum, reed canarygrass and Virginia fanpetals. In the energetic efficiency the Energy Return on Energy Investment index (EroEI) was used. Apart from the ERoEI ratio, the Net Energy Value (NEV) ratio was also used. In the economics efficiency attitude, the Gross Margin (GM) was determined.The investigations proved that in general, the production technologies of crops where the lowest levels of nitrogen fertilization were applied proved to have the highest energetic efficiency. The highest economic efficiency was characterized by the production of corn for biogas. In the case of the production of bioethanol (all plants), ratios were on the verge of profitability or the lack of it showed.The analysis proved that the efficiency of the technologies of production of the crops to be processed into biogas is several times higher than the energetic efficiency of the technologies of production of the crops to be processed into bioethanol.

• Efficiency indicators in different dimension

  7-22

  András Nábrádi

  Károly Pető

  Viktória Balogh

  Erika Szabó

  Andrea Bartha

  Krisztián Kovács

  Views:

  158

  There are several variations of efficiency definitions and of course ratios concerned with efficiency. A better understanding of the notion of efficiency is critical to dissolve ambiguity about it. Many confuse efficiency with other supposedly synonymous notions such as profitability, successfulness, competitiveness, liquidity or productivity. This ambiguity originates not only in subjective reasons, but the lack of hierarchical order among certain ideas. The primary driver in our research is, to systematize efficiency in general, and formulate a new categorical approach of the efficiency in corporate level.

• Recent trends in the Croatian agricultural business sector

  109-113

  Josip Juračak

  Dario Vukalović

  Views:

  112

  The purpose of this paper is to explore recent trends in the Croatian agriculture and forestry business sector and compare it with the Croatian economy as a whole. This topic is considered interesting because recent business years have been heavily influenced by the global financial crisis. Many authors would say that agriculture, as a specific branch of the economy, does not follow general trends, but is affected rather by other factors, especially such as environmental ones. The global financial crisis had the most negative impact on the Croatian economy in the 2008/2009 period, when the GDP growth rate tumbled from 2.4% to -5.8%. Although some positive movements have been recorded since 2009, a recession is still going on. Based on information from the National Financial Agency (FINA) database we found that during the period 2007-2011, agricultural firms experienced the same trends as the whole economy, except in terms of average monthly salaries and employment. However, due to the impact of / on? agricultural products prices and yields, in two year period from 2008 to 2010, agricultural firms recorded an almost linear fall in revenues, while the national business sector on the whole experienced a sharp fall in revenues in 2009 and then only a modest fall in 2010.

• Economic Profitability of Sweet Pepper Production under Different Irrigation Levels and Polyethylene Mulch in a Plastic Greenhouse

  109-116

  Mohamed A. A. Abdrabbo

  Assem A. A. Mohamed

  Fadl. A. Hashem

  Ahmed. S. A. Hegab

  Views:

  152

  Field experiment was conducted, during two successive seasons of 2014- 2015 and 2015- 2016, at Dokki protected agricultural site, Giza Governorate, Egypt, to study the profitability of different applied irrigation levels and polyethylene (PE) mulch on plant growth and yield of sweet pepper, (Capsicum annum L.) cv. Godion F1, under plastic house condition. Three irrigation levels (0.50, 0.75 and 1.00) of crop evapotranspiration (ETc), using drip irrigation system and three PE mulch treatments (transparent, black and control) were applied. Data revealed that black PE recorded the highest values of early and total fruit yield per plant during the two seasons. Increasing water level up to 1.00 (ETc) enhanced yield with different PE mulch treatments, while water use efficiency (WUE) decreased with increasing water level. However, Using 0.50 (ETc), with different PE mulches increased WUE compared to using 0.75 (ETc) or 1.00 (ETc). The economic assessment of costs and returns from different treatments were calculated. It was found that the average yield was higher in 1.00 ETc with black mulch. Gross margin per 540 m2 were analysed using yield data, price structures and production costs. The 1.00 (ETc) with black mulch had the highest gross margin which is USD 416.8 and USD 533 (1 USD= 9 Egyptian pound) for the first and second seasons, respectively. The benefit cost ratios (BCRs) per 540 m2 were analysed, and 1.00 (ETc) with black mulch had the highest BCR with 1.36 in the first season and 1.45 in the second season.

  JEL Classification: Q 01, Q 12, Q 19