For the evaluation of this diploma thesis I have chosen four different processing machines with various working organs. There were reversible plow Lemken Opal 90, plate cultivator Horsch Joker 8 RT, blade cultivator Farmet Duolent DX 300 N and combined cultivator Väderstad TopDown TD 500. Raitings were carried out on lands with very similar features to get the most advantageous possible comparison. The thesis contains characteristics of the companies and technical data of compared machines, where the machines differences are obvious, because each machine is designed and assembled for different purpose of soil processing. The fact is that each machine excelled in different type of measuring from the qualitative indicators' point of view. The best cultivation of plant residues came from the plow Lemken Opal 90. On the other hand, Väderstad TopDown TD 500 had the most decaying effect on post-harvest residues.

This diploma thesis is focused on influence of reduced tillage technology of soil processing on it´s near-surface soil layer (0 to 10 cm). The research was carried out on agricultural land near Šardičky village, where company ZEMO spol. s r.o. provides long-term use of reduced tillage technology. In 2016 the soil quality in this site was evaluated by using physical and hydrophysical parameters, results are presented in the previous bachelor thesis "Selected hydrophysical parameters as indicators of soil quality.". In diploma thesis in addition chemical and other hydrophysical properties have been evaluated to provide a comprehensive assessment of soil quality. In 2016, poppy seed was grown on this site and spring barley was grown in 2017 and 2018. Grab samples and intact soil cores were taken during the vegetation period of the crop. After three years of experimental research, in which I participated, it is possible to assess the development of individual parameters and the influence of reduced tillage technology on near-surface soil layer. The theoretical part of the diploma thesis deals with the description of the reduced tillage technology and problematics of the determination of soil parameters, which are used for evaluation of the quality of the near-surface layer. The practical part deals with evaluation of these parameters according to various authors and describes the development of soil quality during years 2016, 2017 and 2018.