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Gewählte Master / Diploma Thesis:

Klaus Palmetshofer-Gassner (2014): Beschreibung von Bodenbearbeitungsverfahren anhand von technischen, ökologischen und ökonomischen Kriterien.
Master / Diploma Thesis - Institut für Landtechnik, BOKU-Universität für Bodenkultur, pp 288. UB BOKU obvsg FullText

Data Source: ZID Abstracts
Abstract:
A major part of the work took the development of a catalog of criteria which involves important parameters of technical, ecological and economic point of view. The collected data were subjected to qualitative assesment, which medium amounts of low to high. Among the selcted parameters for the technical criteria, the conventional tillage system , the draft requirement, the power requirement, the energy demand and the fuel consumption compared to the conservative method have very high values. In contrast, the necessary coulter pressure is at sowing in direct seeding with up to 500 kilograms very high, while method with 8-13 kilograms per hectare comparably low in conventional (turning). In forming the list of criteria from an environmental perspective was primarily due to the impact of each tillage method with respect to the degree of the soil cover percentage or kilograms per hectare, the soil loss in tones per hectare per year, the carbon loss in kilograms per hectare, the nitrogen removal in kilograms per hectare per year, the amount of humus in tonnes per hectare, the humus content in percent, the Carbondioxygen emissions in kilograms by diesel fuel consumption in liters per hectare and the air capacity in percentage.In the qualitative assessment it became clear that the conventional tillage has particularly at the parameters land cover after sowing very low values, while they are in the amount of humus, humus content and the air capacity values in the middle. For the consideration of tillage practices from an economic perspective, a model calculation for machinery and labor costs was performed and shown the differences in costs of six different tillage systems. Deciding factors in choosing the optimal tillage method in addition to the cognitions of the practice and science in particular are the factors of soil type, rainfall, working time, the compexity of the operation, as well as the expertise, experience and the courage of the manager.

Beurteilende(r): Weingartmann Herbert
1.Mitwirkender: Moitzi Gerhard

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