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Design of a stubble disc cultivators for aggregation with a tractor 50k
Pech, Vladimír ; Škopán, Miroslav (referee) ; Kašpárek, Jaroslav (advisor)
This thesis deals with the design of a stubble cultivator for a tractor. The aim of this thesis is to design a stubble cultivator that fulfill the conditions of the assignment. In this thesis is a search of similar machines available on the market. Followed by describes the methods of tillage which the proposed stubble disc cultivator is used. The next part of the thesis describes possibilities of stubble cultivator their advantages and disadvantages. The design part deals with the construction which is based on drawing documentation. In the next part of the thesis is a calculation which is focused on determination of the required tractor power that is needed for operation with the designed stubble disc cultivator.
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Design of a stubble disc cultivators for aggregation with a tractor 50k
Pech, Vladimír ; Škopán, Miroslav (referee) ; Kašpárek, Jaroslav (advisor)
This thesis deals with the design of a stubble cultivator for a tractor. The aim of this thesis is to design a stubble cultivator that fulfill the conditions of the assignment. In this thesis is a search of similar machines available on the market. Followed by describes the methods of tillage which the proposed stubble disc cultivator is used. The next part of the thesis describes possibilities of stubble cultivator their advantages and disadvantages. The design part deals with the construction which is based on drawing documentation. In the next part of the thesis is a calculation which is focused on determination of the required tractor power that is needed for operation with the designed stubble disc cultivator.
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Utilization of stubble cultivators with minimal soil treatment
ŠIMEK, Roman
The aim of the thesis is to contribute to the improvement, expansion and understanding of the possibilities of utilization of stubble cultivators in modern technologies of minimal soil cultivation. In order to compare the disc and skive stubble ploughs with minimal soil cultivation, a small-scale experiment was established at selected sites. In this work, soil roughness, uniformity of depth of soil treatment and incorporation of post-harvest remnants after soil treatment with disc and skive stubble plough were evaluated. The use of the evaluated machines was recommended according to the results obtained in agricultural practice.
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Comparison of the effectivity of shovel cultivator and disc plough and their impact on the epigeic fauna
HAVLOVÁ, Iva
The diploma thesis is aimed at a comparison of tine and disc cultivators by several parameters which are most affecting the quality of a soil cultivation, and in the effect of the epigeic fauna, represented by ground beetles (Carabidae). Experiment was carried out twice during the season (after a harvest of wheat and rape) while soil was being cultivated with disc cultivator Lemken Rubin or tine cultivator Horsch Tiger. The experiment was carried out on the fields of ZD "Vysočina" Zbýšov and measured parameters were: plant residue decomposition, cultivation depth, diameter of aggregates, weed infestation and crop plant emergence, and abundance of ground beetles. Using the statistic tests, it was found, that almost every parameter describing the quality of the cultivation was influenced by the type of the cultivator. Tine cultivator had a higher decomposition of plant residues. This difference was more obvious when cultivating the field after rape harvest (P < 0.001) than field after wheat harvest (P < 0.01). Tine cultivator was more precise with keeping the cultivation depth as planned. Disc cultivator had a higher crumbling capacity. At the higher speed the machines were more inclining to come out of the ground at higher speeds (P < 0.05). A cultivation had a very negative influence on Carabidae population. On a rape stubble there was a 193 specimens caught in traps before the cultivation with two dominant species - Pseudoophonus rufipes and Pterostichus melanarius. Only 41 specimens was found in the traps after the cultivation.
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The use of modern stubble plough with minimum tillage
BARTUŠEK, Marek
The aim of this thesis is to broaden knowledge about the possibilities of using modern stubble plough with minimum tillage in agricultural production. In order to evaluate the work of selected indicators stubble machines was based small ? plot experiments at selected station. The experiment was evaluated lumps, depth of tillage and crop residue incorporation of selected machines. Further economic evaluaiton was carried out operating costs of used machines. The use of machines were evaluated according to the results obtained reccomended in agricultural practice.
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