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Gewählte Master / Diploma Thesis:

Andreas Flaeckel (2005): Verteilung von Unkraut und Abfallsamen bei verschiedenen Bodenbearbeitungsmaßnahmen und Systemvarianten.
Master / Diploma Thesis, BOKU-Universität für Bodenkultur. UB BOKU obvsg

Data Source: ZID Abstracts
Abstract:
A field trial on the experimental farm in Gross Enzersdorf should show the distribution of weed seed by different soil cultivating measurements. The method was simulation trial over 3 years with granulats of synthetic materials (TKG: 55g, diameter 4 ¿ 5 mm) as äquivalents of weed seed. For the soil tillage a cultivator (3 cm and 8 cm depth area), a two-level-plough (turn over 12 cm working area and burrow depth till 25 cm) and a simple rotation-plough (25 cm working depth) was used. This soil cultivation machines are used in different combinations in the stubble-field working and in the primary-soil tillage. The variant "plough" in the first simulation year shows, that the granulats of weed seed were buried in a soil depth of 10 ¿ 30 cm. In the second simulation year the granulats of weed seed were distributed to an soil depth of 10 cm. In the third simulation year most of the granulats of weed seed were positioned in the soil depth to 10 cm. It took three years to transfer the big part of granulats of weed seed, which were buried with the plough in the years before, in a upper zone. In contrast to the plough the granulats of weed seed distributes by the cultivator constant in the soil depth to 10 cm. With the two-level-plough the granulats of weed seeds comes in spite of the turn over effect of 12 cm to deeper zones (till 25 cm), which was explained through the turn over effect of the underground-loose-share.

Beurteilende(r): Boxberger Josef

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