Zeszyt: 2017, vol. 14 / IV / 3
The application of seed treatment in the preparation of seed material significantly improves its quality. Treatments contribute to plant protection throughout its development process. Once bought, the seed material of qualified or selected category is already treated and ready to plant. Most farms, however, prepare the seed material or some part of it on their own. The procedure is regulated by the Regulation of the Minister of Agriculture and Rural Development of June 24, 2002 concerning occupational safety and health of application and storage of crop protection chemicals, mineral and organo mineral fertilizers. The goal of the thesis was to examine the compliance with the effective laws by the farms based in Wielkopolska, Poland. The obtained results demonstrate that the majority of farmers do not apply any crop protection measures for seed treatment. The process takes place in improper conditions, and the seed leftovers are not used in compliance with the regulations. ...
This paper presents an assessment of selected qualitative attributes of fermented drinks obtained from organic cow's and goat's milk by using yogurt cultures in 10-day refrigeration storage process (5 ± 1°C). The raw material was purchased in organic farms located in north-west Poland. Two yogurt starters obtained from the Chr. Hansen company were used in the study: YC-X16 and YF-L811. Both cultures contained Streptococcus thermophilus and Lactobacillus delbrueckii subsp. bulgaricus. These cultures did not differ in the qualitative content of the lactic acid bacteria but their use allows for obtaining products with different qualitative properties. Four variants of yogurt were produced: i. J-X16 - yogurt from cow's milk with YC-X16 culture, ii. J-L811 - yogurt from cow's milk with YF-L811 culture, iii. KJ-X16 - yogurt from goat's milk with YC-X16 culture, iv. KJ-L811 - yogurt from goat's milk with YF-L811culture. All samples of fermented milk were subjected to microbiological, physico-chemical, rheological (hardness) analyzes and a sensory assessment (PN-EN ISO 6658:1998). It was determined that the yogurt cultures (YE-L811 and YC-X16) used in the experiment are worthy of recommendation for the production of fermented milk from both organic cow's and goat's milk. The physical and chemical properties (titratable acidity, pH and ...
Mixed municipal solid waste collected from the area of each Polish district (commune) is transferred to Regional Installations for Municipal Solid Waste Treatment. They comprise one or more of the following facilities: installations for mechanical-biological waste treatment (MBT), installations for thermal treatment of municipal solid waste, green waste composting plants and landfill sites. MBT installations have been currently the dominant technology of mixed municipal solid waste treatment in Poland. In these installations mixed waste is subjected to mechanical processes (including: crushing, separation, screening and classification) resulting in the production of the undersize fraction with usual grain size below 80mm and the oversize fraction with grain size over 80mm. Because of the necessity of stabilization and hygenization of the undersize fraction prior to landfilling, it is subjected to the process of biological treatment, e.g. biostabilization.The main aim of the research was to analyze the temperature changes during the biostabilization of the undersized fraction in thermally insulated BKB100 laboratory bioreactor. The research covered a 14-day period of the intensive phase. The analyses were performed in 6 replications. 40.1±2.2kg of waste with density of 519.2±27.5kg·m-3 and the biodegradable fraction content of 41.9±1.9% was placed in the reactor. The temperature of waste inside the ...
The work examines the role of innovative solutions in order to make more efficient use of waste and the reduction of their storage. Such solutions are necessary in the transformation process of linear economy to circular model. In the new model, the role of waste is being changed. Waste has not yet been treated as a by-product of economic activity but as a valuable resource that can be reused in the production process. There were also analysed how extent is the development of innovativeness in Poland in comparison to other European Union Member Countries. There is also analysed the direction of changes in the waste management field, especially in the structure of municipal waste. Another aim is to examine the examples of the Polish enterprises acting in waste management sector and the kind of innovative methods they use. In the article there were also presented supportive tools for implementing innovations in enterprises, with a focus on the waste management. They include among others: National Smart Specialisations and Regional Smart Specialisations. ...
The aim of this paper is to present the context of intellectual capital in rural area development using the example of fuzzy qualitative comparative analysis (fsQCA), which is one of the few methodological innovations of recent decades and which bridges the gap between quantitative and qualitative research. Based on surveys and interviews with local organizations, the study examined the relationships between the results of work and the composition of variables that constitute intellectual capital components. The results, related to intellectual capital, were divided into three variables representing human capital (education, experience-years of work, language skills), structural capital (presence of IT system in an organization, the number of procedures and processes) and relational capital (the number of cooperating organizations, the number of NGOs in the community, the level of trust in the manager).The research outcomes showed that different combinations of intellectual capital components led in practice to the same result; nevertheless, human capital was an indispensable element of the combination. ...
The aim of the study was to determine the value and concentration indicators of BOD5, COD and general nitrogen in domestic wastewater after mechanical treatment, which should be considered in the design of the activated sludge reactor. Ninety-nine samples of raw wastewater and after mechanical treatment were then collected and physicochemical analysis was carried out. The quantity of pollutants in the raw wastewater was verified to determine if this was domestic wastewater. The next stage of the analysis included the definition of the characteristic quantity of the analysed indicators in wastewater after mechanical treatment, which should be taken into account while calibrating computer programs supporting the design of biological reactor chambers. A detailed analysis led to the conclusion that mean values for BOD5 - 300 mgO2·dm-3, for COD - 500 mgO2·dm-3and for total nitrogen 50 mgN·dm-3 should be applied. The work also determined the susceptibility of wastewater after mechanical treatment to the decomposition of organic and biogenic compounds. ...
The increasing of standard living causes the increases energy consumption and waste or wastewater production. The possibility to combine wastewater treatment and electricity production can accomplish a microbial fuel cell. The possibility of wastewater treatment using the Cu-B catalyst with KMnO4 catholyte for microbial fuel cells is presented in this paper. The measurements covered comparison of changes in the concentration of COD, NH4+ and NO3- in the reactor without aeration, with aeration and with using a microbial fuel cell (with Cu-B cathode and KMnO4 catholyte). The reduction time for COD with the use of microbial fuel cell with the Cu-B catalyst (and KMnO4 catholyte) is similar to the reduction time with aeration. It has been shown that the Cu-B (with KMnO4 catholyte) can be used as cathode catalyst in microbial fuel cells. Unfortunately in this case is needed to constant delivery of catholyte. ...
Sustainable development involves integration of political, economic and social activities maintaining natural balance and durability of basic natural processes in order to ensure the possibility to fulfil the essential needs of individual communities or citizens, for both present and future generations. An attempt was made in the paper to evaluate the provinces in view of sustaining their development. A set of 71 indicators was used to describe the individual areas of sustainable development, i.e. economic, environmental and institutional-political order in a synthetic way. Linear ordering of provinces was conducted using their taxonomic distance from the model object. ...
The aim of the study was to compare the water requirements and the precipitation deficiencies during cultivation of asparagus in the period from June to August in the regions of Bydgoszcz and Wroclaw. The water needs were calculated using the plant coefficient. The reference evapotranspiration was measured by Grabarczyk's method (1976). The coefficients kc, determined for the Polish conditions by Rolbiecki (2013), were used to estimate the water requirements considered as the crop evapotranspiration. In the studied period (from June to August, 1996-2015), higher water requirements of asparagus were noted in the Wroclaw region (366.1 mm) than in the Bydgoszcz region (288.5 mm). The monthly water needs in June, July and August were 69.8 mm, 128.8 mm and 167.5 mm, respectively, in the Wroclaw region, and 55.5 mm, 98.5 mm and 134.5 mm, respectively, in the Bydgoszcz region. In July, the tendency to increase the water requirements in both observed regions was noted. The monthly crop evapotranspiration in July rose in each decade by 12.3 mm in the Bydgoszcz region and by 21.2 mm in the Wroclaw region. In the 20-year study, the rainfall deficit in June and July during 11-13 years was noted. In August, the precipitation deficiencies were ...
The aim of this article is to formulate guidelines for locating benches in rural public spaces. It is a summary of the results of a qualitative research involving 67 users of urban benches, conducted with the application of individual in-depth interviews, and the results of a literature review on the manner in which rural public spaces are equipped. The obtained results pertain to the use of benches in rural public spaces in the context of their integration and semantic potential (symbolic values). The conclusions are presented in the form of general guidelines. Public consultation should be an important element in deciding how to equip rural common space with benches. Local communities ought to be included in the decision-making process, from the stage of the assumptions of the design concepts to the stage of realization. It is advisable to adjust the form of benches, their number, orientation and location to the nature of public space and expectations of their future users. At the same time, the overall structure of public space and its main functions should be taken into account. Properly selected and placed benches can support the process of community structuring and may be a part of the equipment of ...
The aim of the study was to analyse the state of environmental, health and safety rules (EHS) during the use of plant protection chemicals with regard to residues and packaging procedure, based on applicable regulations. The results obtained from the farms of the Wielkopolska Region were analysed. Its results prove failure to comply with applicable health and safety regulations (majority of users do not use personal protective equipment) and rules for handling and dealing with liquid chemicals. The use of plant protection chemicals is in most cases, carried out by sprayers subjected to periodic technical inspections. ...
Results of air temperature measurements in the 1957-2014 multi-annual period were analysed in the paper. The data originated from Jelcz-Laskowice locality situated in the south-western part of Poland, at the flat part of the Lower Silesia, on Silesian Lowlands. Average annual and monthly air temperatures and the number of days of thermal seasons duration were analysed. Trends of changes were set and extreme values of average monthly air temperatures were analysed. Mean annual air temperatures in the studied multi-annual period revealed a tendency to increase. Average monthly extreme values of the analysed factor revealed a similar direction of changes; however, more apparent changes occurred for the maximum values. Over the analysed period, average monthly air temperatures revealed a tendency to increase. The most serious changes occurred in July, slightly lesser in August, May and April. The number of days in the years 1957-2014 in the interval limited by the air temperature threshold values: 0oC, 5oC and 15oC was greatly diversified. Analysed results had a clear growing tendency for the summer, slightly lower for the spring, but evidently declining for the autumn. ...
The geoinformation software market is becoming increasingly competitive. New improvements and tools are created, which are provided to the users with subsequent updates. Additionally, completely new software is appearing as well. Nevertheless, for the past several years, ArcGIS and QGIS have been the most popular software in Poland. There are many handbooks and manuals describing their possibilities. Both systems offer numerous functions. This does not mean, however, that the results of identical spatial analyses performed in ArcGIS and QGIS will be identical as well. The comparison of the results of such analyses performed on vector and raster data is the main objective of the conducted study. The research demonstrates, that selected analogical tools implemented in discussed systems provides different results especially in the range of spatial analyses performed on raster data. ...
