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Optimizing The Working Parameters of a Vacuum-Type Precision Metering Unit Using Response Surface Methodology

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org

Citation:  2016 ASABE Annual International Meeting  162460474.(doi:10.13031/aim.20162460474)
Authors:   CEREN KOMEKCI, ERDEM AYKAS, FIRAT KOMEKCI
Keywords:   crop production, seeders, maize, modeling, assessment.

Abstract.

The purpose of this study was to determine the optimum levels for the working parameters of a vacuum-type precision metering unit by using a central composite design (CCD) of response surface methodology (RSM). The variables considered in the study consisted of the vacuum pressure, peripheral speed, the number of holes and the diameter of seed holes on the seed plate. Maize seeds were used in laboratory sticky belt tests. Quality of feed index, multiple index, and miss index were considered as a performance criteria of seed spacing accuracy. The results obtained in the laboratory were used to develop functions in polynomial form that allowed the calculation of the optimum level of each independent variable considered in the research. The optimum levels of vacuum pressure, peripheral speed, number of holes and the diameter of holes for precision seeding of maize seeds were found to be around 7.2 kPa, 0.225 m s-1, 26 holes and 4.1 mm, respectively.

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