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Gewählte Master / Diploma Thesis:

Michael Seewald (2011): Vergleich eines Stufenzellensärades mit einem Nockensärad in Drillmaschinen hinsichtlich Dosier- und Ablagegenauigkeit an Hanglagen.
Master / Diploma Thesis - Abteilung für Pflanzenbau, BOKU-Universität für Bodenkultur, pp 53. UB BOKU obvsg

Data Source: ZID Abstracts
A novel dosing unit for drill-planters was developed with the goal to improve the accuracy of volumetric seed dosage and of the seed placement. It was to be investigated if the precision of this novel device is affected by operations on slopes. Additionally, the influence on the results due to the use of a rotary harrow was investigated. A field trial was conducted, which compared two types of dosing units, viz. a traditional unit and the new device. Both dosing units were used to plant spring barley with planting operations uphill and downhill on a slope, and with or without involving a rotary harrow. The respective seed quantities were measured. Before harvest time, measurements for plant spacing (along and between rows), planting depth, as well as dry matter yield, tillering and ear density were conducted. Based on the gravimetric data, the dosage errors of the new device were very small and insignificant, whereas the results of the traditional device showed significantly inferior performance. The use of the rotary harrow did not influence the volumetric accuracy of either unit. Based on the data on plant growth, the influence of the initial conditions could be traced. Despite inherent test-related differences, no significant deviations in dry matter yield showed up at harvest time.

Beurteilende(r): Kaul Hans-Peter

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