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The aim of the study was to evaluate in mycological aspect stored horseradish seedlings derived from the strict field experiment, with an application of chemical and non-chemical protection. Regardless of protection manner, the population of fungi present in horseradish seedlings was dominated by the following species: V. dahliae (14%), C. destructans (8%), E. purpurascens (7.7%), R. solani (7.3%),...
The subject of the paper is to modify the procedure of inference for TPMS (Tyre-Pressure Monitoring System) with regard to an earlier identification of the excessive temperature rise in tyres before they exceed thermal limits. This shall allow to limit the risk of accidents caused by destruction of a tyre. An important issue indicating functional features of TPMS consists in a possibility of rapidly...
Currently the global practice is to collect branches that remain in orchards and vineyards after maintenance pruning sporadically, using specially designed conventional hay balers. The EuroPruning project implemented in the Industrial Institute of Agricultural Engineering (PIMR) in Poznań involved developing the construction of a new machine for compressing branches remaining in orchards and vineyards...
Anaerobic digestion is a complex, multi-step biological process. Control of this process can be carried out by analyzing the parameters of dry matter, organic matter and the dry matter concentration of volatile fatty acids (VFA). The aim of the study is to assess the possibility of using near-infrared spectroscopy in the construction of calibration models of dry matter content in the fermenting mixture...
The experiment assessed the possibility of organic production of fruit of three sour cherry cultivars. Among the cultivars under evaluation were two cultivars of Hungarian breeding: ‘Debreceni Bötermö’ and ‘Erdi Bötermö’, and one cultivar of Polish breeding - ‘Sokówka Nr 6’. Trees grafted onto Prunus mahaleb seedlings were planted in the spring of 2005 in the Experimental Ecological Orchard in Nowy...
The paper presents the issue of the influence of the conditions of maize silage storage on its energy value in the process of methane fermentation. For this purpose, the biogas and methane efficiencies of silage stored under anaerobic and aerobic conditions have been compared. On the basis of executed studies, it has been stated that the process of silage storage and its protection against the contact...
The study aimed at the evaluation of the efficacy of horseradish seedling treatment with chitosan (Biochikol 020 PC) for the protection of the roots against Verticillium wilt and influence on the size and root yield structure. The direct effect of chitosan on the fungi which contribute to the degradation of root health was tested in laboratory conditions. The horseradish root yield and contribution...
The studies were conducted in the years 2011-2013 at the Research Institute of Horticulture in Skierniewice, to compare the effectiveness of selected methods of weed control, useful in organic production of red head cabbage and to determine their impact on the yield and nutritional value and storage ability. In experiments the effectiveness of such methods as: mechanical treatments, soil mulching...
Four species of leafy vegetables from organic and conventional production (coriander, leaf mustard, rocket salad and watercress) were used in this experiment. The research material consisted of edible parts of vegetables harvested in the beginning of September 2015. After harvest, dry matter content of plant samples was determined. Then plant material was freezedried and stored at -80oC until further...
In organic agriculture only natural methods of cultivation (fertilization and plant protection) are allowed. The total conventional strawberry production in 2014 was 216 thousand tones on the 53 thousand ha. Organic production was on a very low level with only 5 thousand tones cultivated on 1.3 thousand ha of area. Experiment was carried out in the years2013-2014. One strawberry cultivar Honeyoe was...
The subject of the study concerns the seeds of broad bean of White Hangdown cultivar derived from the strict field experiment (2010-2012). The experiment consisted of 10 combinations including two alternating rows sowings of broad bean with fennel and coriander, four variants of biological protection using Polyversum WP, Bioczos BR, Biosept 33 SL preparations, and three variants of chemical protection...
The intensification of livestock production in our country, forces farmers to search for optimum manners to manage byproducts such as slurry or manure. The traditional manner consists in their use as fertilizer. Although such an approach has obvious advantages, well known for many years, it involves an increase in operating costs, which may outweigh the profitability of the use of natural fertilizers...
The aim of this study was to evaluate the yielding of selected quality varieties of winter wheat grown in organic farming in different regions of Poland. The field trials were performed in the years 2014-2015. The analyses included grain yield, its structure, nitrogen nutritional status and presence and intensity of fungal diseases. The results showed that, regardless of locality, Sailor, KWS Ozon...
The experiment presented in this article contributed to the assessment of the potential applicability of plant extracts for insoil treatment of leguminous plant seeds. Germination capacity of yellow lupine (Lupinus luteus L.) ‘Taper’ variety and field pea (Pisum sativum L.) ‘Milwa’ variety seeds was assessed after pre-treatment of the seeds with aqueous extracts of green plants selected in earlier...
The object of the laboratory experiment was to investigate the effect of aqueous extracts of dried St. John’s Wort (Hypericum perforatum L.) in concentrations of 2%, 5% and 10%, and fresh parts of this plant, in concentrations of 10%, 20% and 30% on feeding of larvae of Colorado potato beetle (Leptinotarsa decemlineata Say) at L3 and L4 stages. We examined the mass of eaten potato leaves treated with...
This study presents the quantitative and qualitative analysis of soil arthropods (Arachnida: Acari, Hexapoda: Collembola) occurring in four norfolk crop rotation, cultivated by organic method. The field research was carried out in the years 20142015 at the Experimental Research Station Swojec, belonging to the Wrocław University of Environmental and Life Sciences and at an organic farm in Kamieniec...
The aim of the study was to search for alternatives to chemical fungicides currently used in plants protection against Botrytis cinerea, Rhizoctonia solani, Phoma exiqua var. exiqua, Sclerotinia sclerotiorum, Fusarium poae. Various concentrations of aqueous extracts of Chenopodium quinoa Willd leaves, stems and inflorescences were tested in the laboratory conditions. Antifungal activity of the extracts...
The objective of the study was to compare the effect of broad bean protection against fungal diseases, black bean aphid and broad been seed beetle with the use of non-chemical products (Polyversum WP and Bioczos BR) and artificially synthesized preparations (Vitavax 200 FS, Decis 2,5 EC and Fastac 100 EC) on the harmfulness of larvae and beetles of pea weevils. The observations were conducted on broad...
The paper presents results of research on comparison of operational and economical two technologies of preparation and feed distribution of total mixed ration (TMR) for cattle. The research was carried out in two farms in Wielkopolska where the doses in an amount from 1195 to 4900 kg were prepared at once. Average operating efficiency of tested fodder carriages were 4,71 and 8,12 t·h-1. Labor expenditures...
The aim of the research was to assess natural and landscape values of plant communities located in the area of an interembankment zone of Warta River nearby Koło which, inter alia, decided of the landscape attractiveness of Nature 2000 area - the valley of middle Warta River. Natural values were assessed on the basis of selected plant communities and their phytosociological structure, the richness...
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