The main purpose of this paper is to explore farmers’ opinions on the barriers to the development of organic farming. A survey was carried out with 262 Polish organic farmers in order to classify the barriers to organic farming development into production, and economic aspects, market aspects and institutional and regulatory aspects. As a next step, a detailed analysis was performed of how the farmers view these barriers. According to this study, Polish organic farmers attach greater importance to economic factors than to non-economic ones. Low yields and production volumes are the reason why many farmers see organic farming as being risky. More than 80% and nearly 60% of farmers covered by this study found the production risk to be very high or high, respectively, during and after the conversion period. Most farmers say they intend to continue their organic production activity only if financial support is provided. Nearly one in five farms (18.3%) want to discontinue organic production in future. This is especially true for two types of farming: specialized grazing livestock farms and mixed holdings. The farmers believe that market aspects and institutional and regulatory factors are the key barriers to the development of organic farming. The findings regarding the role of institutional barriers and communications from regulatory institutions, which affect the farmers’ decision-making processes, are of particular importance. In Poland, the main institutional problem is the instability of laws applicable to organic farming, which adds to the farmers’ uncertainty and decision-making risks. The case study of Poland, which is among the emerging markets for organic food, shows that a stable and coherent support policy is a condition for organic-farming development.

A method was developed for assessing ascorbic acid concentration in commercial fruit juice by cyclic voltammetry. The anodic oxidation peak for ascorbic acid occurs at about 490 mV on a Pt disc working electrode (versus SCE). The influence of the potential sweep speed on the peak height was studied. The obtained calibration graph shows a linear dependence between peak height and ascorbic acid concentration in the domain (0.1–10 mmol⋅L−1). The equation of the calibration graph wasy=6.391x+0.1903(whereyrepresents the value of intensity measured for the anodic peak height, expressed asμA andxthe analyte concentration, as mmol⋅L−1,r2=0.9995,r.s.d.=1.14%,n=10,Cascorbicacid=2 mmol⋅L−1). The developed method was applied to ascorbic acid assessment in fruit juice. The ascorbic acid content determined ranged from 0.83 to 1.67 mmol⋅L−1for orange juice, from 0.58 to 1.93 mmol⋅L−1for lemon juice, and from 0.46 to 1.84 mmol⋅L−1for grapefruit juice. Different ascorbic acid concentrations (from standard solutions) were added to the analysed samples, the degree of recovery being comprised between 94.35% and 104%. Ascorbic acid determination results obtained by cyclic voltammetry were compared with those obtained by the volumetric method with dichlorophenol indophenol. The results obtained by the two methods were in good agreement.

This paper assesses the extent, scope and importance of financial support for Polish organic farming from 2004 to 2019. The analysis focuses particularly on how the changes in the amount and structure of organic farming payments affected farmers’ interest in specific organic crops during three financing periods: the 2004–2006 Rural Development Plan, the 2007–2013 Rural Development Programme (RDP) and the 2014–2020 Rural Development Programme. This paper aims to answer the question of whether and to what extent the organic farming support policy impacted the development trends followed by, and transformation processes affecting, this sector. It follows from this analysis that in the first decade after joining the European Union, Poland implemented a policy of making payments easily available. It was primarily focused on the quantitative growth of organic farming rather than on stimulating supply. As the payments were easily accessible and decoupled from production, subsidy-oriented farmers were additionally encouraged to seek political rent. This resulted in the instability of a large group of farms who discontinued their organic farming activity in 2014. That year, the policy was amended because of the need to improve the allocation efficiency of subsidies and to couple them with the provision not only of environmental public goods but also of private goods in the form of organic farming products. The current support policy opens up greater opportunities for leveraging the potential of organic farming while reaping environmental and socioeconomic benefits and contributing more than ever to sustainable development.

The purpose of this paper is to assess the level of material deprivation in European Union countries in 2016 from both a local and a global perspective. The Technique for Order Preference by Similarity to an Ideal Solution (TOPSIS) was used in the study. Based on research, five main types of the level of the material deprivation of European Union countries were identified. Research findings suggest that the population of old EU countries is less severely affected by material deprivation than people living in new member states. Also, the level of global material deprivation was assessed. The study was based on 2016 statistical data delivered by Eurostat.