Field testing of a disk-chisel harrow

BACKGROUND: The present state of the global agricultural industry caused by growing consumption of crop and livestock products demands its practical solution that can be achieved, first of all, using high-quality equipment for production and its constant improvement and renovation. Regarding this, using high-quality tillage units which partially or completely improve productiveness and reduce energy consumption during their operation becomes necessary.

AIMS: Process mechanization and improvement of quality of soil cultivating with the developed refined tillage tool.

METHODS: Accomplishment of the given research tasks and ensuring the demaned quality of soil cultivating are done with making changes in working bodies of a disk-chisel harrow at its operation at various velocities on the experimental field by means of adjustment of disk attack angle and measurement of corresponding performance indicators of the unit. Processing of the theoretical data was performed with the Microsoft Excel 2007 software of the Microsoft Office software package.

RESULTS: With the comparison of the data obtained at observing the soil external state before and after disk attack angle adjustment, it may be concluded that the proposed technical equipment gives better soil cultivating with the disk attack angles of 15° and 30°. At this adjustment level it can be observed that soil is cultivated properly with a pretty good overturning.

CONCLUSIONS: With the analysis of the given data, it is found that the tendency of values of productiveness and specific resistance indicators begin to change. The larges fuel consumption is observed at disk module adjustment to 45°.