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Score of combine harvester with a different threshing device at harvest of cereals and oilseed rape in the business of agricultural production
HRACH, Milan
The purpose of this work was to compare aktivity and grade work combine harvester with different threshing system at harvesting a grain and oilseed rape in the business of agricultural production. Work was focuse on the size harvesting losses, grade grind and spreading crop residues, influence on the moisture of harvested crops on the size losses grade grind and spreading crop residues, throughput combine harvester, analysis of performance and consumption fuel. Work is complete about principal parametr agricultural operations, principal parametr owner machines and simply analysis of operating and investment costs. Although combine harvester didn't work at same land, measurement was done in the most consistent as possible in harvested condition regarding the weather, terrain, etc. From results are clearly that almost all the results achieved best results with a conventional combine harvester threshing mechanism Claas Lexion 580. Exception was only throughput at harvest of winter oilseed rape, which had machine John Deere S 690 with axial threshing of 1.23 kg ha-1 higher than Claas Lexion 580. Consumption fuel was lower at harvest of winter wheat with procrastination straw on the line by machine Claas Lwxion 670 with value 11,0 l.ha-1. . When shredding straw was reached average values for all combine. The worst grind and spread straw demonstrated combine harvester John Deere S 690 where avoid spreading crop residues over the entire stroke. All machines accomplish agro-technical requirements for the combine in terms of losses off 1,5 % in direct harvest, performance, throughput, quality scatter chop, shred the quality of crop residues and working speed. Results this work convince me to recommend harvester Claas Lexoon 580 especially for large agricultural business and for service businesses with minimum efficiency 1 340 ha.rok-1 . For smaller business or business with higer structure of livestock production I would have chosed thresher with straw walker technology separation device and to Claas Lexion 670. Combine harvester John Deere S 690 U would advised more for service businesses and large business engaged in growing corn for grain with minimum area coverage. For both machines I would choose the cutter adapter on the frame 9 meters.
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Effect of rock on land removal damage potato tubers at harvest.
KAKOS, Michal
The aim of this thesis is to describe and evaluate mechanical damage to tubers at harvest with different technologies for growing potatoes. The measuring of the work was carried on the field, where the field was divided into two field trials. For each try were described and measured property of the soil, seedlings, influence of climatic conditions, compared various technologies for growing potatoes and the mechanical demage of the tubers at harvest.
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Processing overview of machine lines used for harvesting and post-treatment forage for energy focusing on southwestern Bohemia
SOUKUP, Lukáš
This bachelor paper deals with an overview of machine lines processing straw and hay, which is used for energy purposes, from areas difficult to harvest. The theoretical part describes the terms such as biomass, harvest of hay and straw, and machine lines for harvesting hay and straw. Further the fundamental principles of pelletizing and briquetting lines are described. In the practical part selected machine lines for hay and straw harvest, which are used for the production of shaped fuel, are stated. The next part treats the machine lines for the production of shaped fuels (briquettes, pellets) suitable for enterprises of agricultural primary production. Furthermore, the part above is complemented by technical data and capital costs of purchase of particular machine lines.
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Comparison of forage wagons Krone Titan R80/GL PÖTTINGER FARO 8000 and at harvest hay and straw.
MACHURA, Antonín
The aim of this bachelor thesis is a comparsion of two forage wagons KRONE TITAN R 80/GL and PÖTTINGER FARO 8000 and their efficiency in the harvesting hay and straw. It describes the problems at harvesting hay and straw with forage wagons. It also evaluates the lenght of chopped straws form the point of real and teoretical lenght, beyond teoretical lenght extend 7% of straws. It determines basic effectiveness, that range from 19 to 22 , and also fixed and variable costs of harvest. The total costs of one harvest with tractor and forage wagon fluctuate between 1500 and 1800 . This work is based on authors own measurement and on the informations obtained from owner of this equipment and agriculture and food normative.
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Survey of machine lines suitable for harvesting fodder intended for energy purposes.
VIKTORIN, Jiří
This thesis presents an overview of fodder processing machinery lines for energy purposes. The theoretical part describes general concepts such as biomass and mechanical lines. Additionally, briquetting and pelletizing presses are outlined here. The practical part describes selected mechanical lines to harvest fodder (straw, hay) for the manufacture of molded fuel. This section also contains an overview of machine lines for the production of molded fuel (pellets, briquettes) for subjects of various sizes. Lines are accompanied by technical parameters and the cost of individual machines.
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Collector car use in the primary agricultural enterprise.
KUMPAN, Michal
This thesis seeks to evaluate the use of collector cars from the needs and opportunities for agricultural operators, primary producers. These cars are becoming increasingly sophisticated, technically innovating and expanding their scope beyond the collection and use of cutting and hauling bulky materials from the chaff cutter. The work refers to the attitude of agriculture to this machine.
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