Fulltext search in archive

Within the project of small-plot field trials we cultivated 10 varieties of winter wheat in 5 different trial stations of the Central Institute for Supervising and Testing in Agriculture in years 2001-2002. The yields achieved were assessed and the miller's quality of the grain was defined. Wheat variety Contra reached the highest yields (10.226 t.ha^-1) and Niagara wheat variety reached the lowest yields (8.516 t.ha^-1) where the yields were conclusively lower (LSD, 95%) compared with the group C varieties. Apache and Ebi varieties achieved the most stable yields; the least plastic variety was Banquet. We marked high variability of volume capacity (682-840 g.1^-1). The highest average volume capacity was proved by Niagara variety (802 g.1^-1) while the lowest was provided by Windsor (736.9 g.1^-1). The elite group wheat varieties (E) and the quality varieties (Niagara, Samanta) proved conclusively higher volume capacity than the group C varieties. The highest TGW, in comparison with the rest of varieties, was achieved by Niagara variety and the lowest TGW proved by Contra. The high proportion of grains on 2,5 mm sieve corresponded with TGW. In average, the highest proportion of grains on 2,5 mm sieve was achieved by Niagara variety (95.21%), the lowest by Contra. Higher TGW value achieved in 2001, in comparison with 2002, positively influenced the yield of flour. The highest yield were reached by the A class flour in 2001 and the elite wheat (E) in the following year. The highest content of ashes in flour T550 was found at Windsor variety (0.61%) contrary to the most positively evaluated Samanta (0.55%).

In the experiment was the effect of absorbens supplementation on the fermentation quality of brewers' grains silage by comparing with the untreated control. As effective substance of experimental groups were barleygroats and malt sprouts. The addition of malt sprouts "B" and barleygroats "C" in our experiment conditions increased statistically significantly (P

Zoobenthos of the Fryšávka Rivulet was investigated in the years 2007-2008. Research included also physico-chemical factors of water (temperature, pH, conductivity, oxygen saturation). Altogether, 144 taxa of zoobenthos were determined in the Fryšávka Rivulet: Coelenterata (1 taxon), Turbellaria (1 taxon), Oligochaeta (6 taxa), Hirudinea (1 taxon), Mollusca (5 taxa), Amphipoda (1 taxon), Decapoda (1 taxon), Acari (1 taxon), Ephemeroptera (18 taxa), Plecoptera (18 taxa), Heteroptera (1 taxon), Megaloptera (1 taxon), Planipennia (1 taxon), Trichoptera (36 taxa), Coleoptera (8 taxa), Diptera (44 taxa). Altogether, 76 taxa of zoobenthos were determined in Medlovka brook: Coelenterata (1 taxon), Turbellaria (1 taxon), Oligochaeta (2 taxa), Mollusca (1 taxon), Isopoda (1 taxon), Amphipoda (1 taxon), Acari (1 taxon), Ephemeroptera (14 taxa), Plecoptera (8 taxa), Megaloptera (1 taxon), Trichoptera (17 taxa), Coleoptera (6 taxa), Diptera (22 taxa).
The average abundance of zoobenthos of the Fryšávka Rivulet was 3208 ind.m^-2, the average biomass was 7.5 g.m^-2, respectively. The same values for the Medlovka brook were: abundance 3238 ind.m^-2 and biomass 5.8 g.m^-2. The average value of the saprobic index for the whole Fryšávka Rivulet was 1.25 (oligosaprobity), for the Medlovka brook 1.42 (oligosaprobity).

The use of clover-grasses in the structure of fodder crops grown on arable soil, especially those with intergeneric hybrids as the main component part, could avert the negative current trend, i.e. further decreasing the area of perennial fodder plants or fodder crops as a whole on arable soil. They have an irreplaceable role in crop sequences and in preserving the cultural character of the countryside, above all due to the fact that they improve soil fertility and microbial life in the soil and that they have an excellent pre-produce value, and, at the same time, they are applied in various farming systems (both conventional and ecological) and in various climatic conditions, and agricultural businesses are well equipped for growing, harvesting and storing them. In the Czech Republic, the area of fodder crops grown on arable soil was decreased from 1,019.9 thousand hectares to mere 396.7 thousand hectares between 1980 and 2009, which is 15.6 % of the total area of arable soil whereas perennial fodder plants only take up 8.5 %. Fodder from clover crops and clover-grass growths on arable soil are one of the main resources of voluminous fodder for dairy cows. Most of this fodder is preserved through a fermentation process (silages, hay storage); a smaller part is fed as fresh fodder, or serves for production of hay. Silages made with perennial fodder plants are the most important source of both proteins and other nutrients for ruminants, especially for high-yielding milch cows. The basis of fodder production systems are the conservative elements of the landscape area (geomorphology) in combination with the progressive elements (weather conditions, plants and human labour) and relict ones, the representative of which is the soil. The fodder production systems in Europe are divided into five main fodder production zones. From this point of view, the areas where short-term clover-grass mixtures are grown on arable soil could be classed with Zone 4, i.e. intensive fodder production and cattle breeding. This characterisation corresponds with the Vysočina Region (the Czech Republic), which is the focus of our work even though extensive breeding can be found in this area on a smaller scale as well. Therefore, our aim was to verify the production and qualitative parameters of the fodder crops and mixtures included in the test in chosen agricultural businesses in the Vysočina Region and to recommend the most suitable variant for the given area. A statistically significant correlative relationship (P < 0.05) was proved between the net energy for lactation contents and the percentage of organic matter digestibility. The evaluation of the production parameters evidently shows the favourable influence of the grass component part or of intergeneric hybrids on the stability of dry matter yield per hectare as well as on the stability of individual nutrients.

The results of three-year trials (1999 to 2001) conducted with six winter wheat varieties in which was studied the grain yield and parameters of technological quality. Varieties of wheat come from four different localities of the Czech Republic. The most favourable weather conditions, a lot of precipitation and high temperature in the course of ripening from three years were proved in the year 2000. The best grain yield were in 2001 (average of sites 8.84 t/ha) and variety Semper, worst quality, had the highest grain yield of 9.17 t/ha, the least grain yield had Sulamit, best quality (7.94 t/ha). The laboratory analysis revealed negative correlation between grain yield and baking quality. The number of statistically highly significant correlations among bread-making quality parameters too.
The negative correlation was of grain yield and grain volume mass (P < 0.05), Zeleny test and protein content taken as a whole for three years (P < 0.01).
The correlation of loaf volume, which is the traits of baking quality and Zeleny test (r = 0.6016**), protein content (r = 0.5932**), dough stability (r = 0.2898**) and flour water absorption (r = 0.3632**) was positive (P < 0.01).

In an effort to meet the requirements for maximum material utilization, which is set forth in the Act No. 185/2001 Coll. on Waste and amendments to other Acts, and to achieve the objectives of the Waste Management Plan of the Czech Republic to reduce biodegradable waste going to landfill, a proposal for widespread deployment of separate collection and processing of biodegradable municipal waste in municipalities has become part of the amendment Act prepared by the ministry. In many places of the country pilot projects have been launched to test the technology and logistics of sorting, collecting, processing and utilizing biodegradable municipal waste separated by residents.
Separate collection of biodegradable municipal waste in Kroměříž was launched as a pilot project in 1992. Despite all the residents' education, the management of Biopas is not satisfied with the quality of biodegradable waste separation; problems occur especially in the residential area. Biodegradable waste separated by residents, due to its unacceptable amount of impurities, is transported to the landfill Kuchyňky near the village Zdounky 10 km distant but detailed data on the amount of impurities in separate biodegradable municipal waste were missing.
Therefore an analysis of separate biodegradable municipal waste has been carried out. Individual samples were collected within two days of separate waste delivery, without any modifications (scattering, compaction). The sample size was at least 200 kg, the sample was manually sorted according to the Catalogue of Waste into biodegradable waste (200201), other non-biodegradable waste (200203) and biodegradable waste unsuitable for composting (e.g. animal by-products). It was found that the amount of unacceptable impurities in separate biodegradable waste considerably varies from 1 to 9 %_wt.
It can be concluded that the amount of unacceptable impurities in biowaste is too large to allow composting and compost production (in 2009).