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An experiment was carried out in a greenhouse of the Research Institute of Horticulture (RIH) to evaluate the effect of new organic fertilizers and amendments on root growth and mycorrhizal abundance and species richness in the rhizosphere of strawberry plants cv. 'Elsanta'. The plants were grown in rhizoboxes (sized 37 cm x 1.8 cm x 20 cm), filled with 1.85 kg of a podsolic soil collected from an uncultivated field of an experimental organic orchard of the RIH. The soil characteristics were: pH 5.5, organic matter content 1.5%, P content 51 mg P kg-1, K content 158 mg K kg- 1 . The plants were treated with different organic fertilizers and amendments: dry granulated bovine manure (Doktor O'grodnik), extract of vermicompost (Humus UP), extract of humates (Humus Active + Aktywit PM), plant extract (BioFeed Amin), extract from several seaweed species reinforced with humic and fulvic acids (BioFeed Quality), a consortium of beneficial soil organisms (Micosat), a stillage from yeast production (Vinassa) and a solution of titanium (Tytanit). Plants treated with BioFeed Amin, BioFeed Quality, Micosat, Vinassa and Tytanit received also half dose of dry manure. A standard NPK fertilization (NPK control) and a not fertilized control were also included. The following parameters were measured: root growth and morpho­logical parameters, number of arbuscular mycorrhizal fungi (AMF) spores, mycorrhizal frequency of AMF in the roots. The chemical composition of the applied products and of soil were also determined.
The European Union’s actions aim to achieve aa more dynamic development and use of renewable raw materials for bio-economy produced, among others, by the agricultural sector. Such actions will allow for the rapid development of the area of the bioeconomy. They can all be reached by conducting innovative research and implementing its outcome into industrial practice. Innovative research for the development of the bioeconomy is performed by the Institute of Natural Fibres and Medicinal Plants. The paper presents and discusses the research projects carried out by the Institute on allowing the production and use of reproducible raw materials such as flax, hemp and herbal plants in various areas of the bio-economy (textiles, construction, automotive, paper industry, pharmaceutical industry, cosmetic, etc.).
This study presents the effect of biopreparations (Polyversum, Biochikol 020 PC and Biosept 33 SL) on fungal and bacterial rhizosphere and non-rhizosphere communities after seed dressing and spraying of Phaseolus vulgaris plants. The use of biopreparations has a positive effect on the communities of bacteria and fungi in soil under the cultivation of this plant. The number of cfu of the studied microorganisms in the nonrhizosphere soil was slightly lower than in the rhizosphere. Biochikol 020 PC and Biosept 33 SL increased the number of cfu of bacteria Bacillus spp. and Pseudomonas spp. and decreased the population of soil-borne fungi. Different species were isolated within the fungi and they belonged to the following genera: Altenaria, Fusarium, Rhizoctonia, Sclerotinia, Gliocladium, Penicillium and Trichoderma. The most antagonistic bacteria and fungi were obtained after introducing biopreparations Biochikol 020 PC or Biosept 33 SL. The smallest number of antagonists were found in the soil after dressing the bean seeds with Zaprawa Oxafun T and spraying the plants with fungicide Bravo Plus 500 SC and in the control combination. Besides, the applied biopreparations and fungicides had a positive effect on Pheseolus vulgaris yielding.
Badaniom poddano 46 prób napojów fermentowanych z mleka i 4 próby preparatów farmaceutycznych, określając liczebność charakterystycznych dla nich bakterii fermentacji mlekowej oraz Bifidobacterium sp.
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