Exploitational indicators, Diesel fuel consumption and work quality during disc tiller skimming
2003
Hula, J. | Kovaricek, P. | Mayer, V. (Vyzkumny Ustav Zemedelske Techniky, Prague (Czech Republic))
The objective of the research was to evaluate the dependence of some exploitation indicators and Diesel fuel consumption on plots acreage during the shallow soil tillage by a tractor JOHN DEERE 8200 with a disc tiller DOWLANDS 4500 after winter wheat harvest. The logarithmic function y=0.43Lnx+10.76 was chosen to express the dependence of the field speed on plots acreage, while the function y=-0.81Lnx+10.35 was used to evaluate the relation between Diesel fuel consumption and particular plots acreage. The equation y=-1.83Lnx+18.95 enabled to calculate the dependence of Diesel fuel consumption on the average length of tractor trajectory through the plots. After the first skimming by disc tiller 31.1 % of winter wheat rests remained on the soil surface, 31.0 % and 37.9 % of crop rests were found out in the depth of 0-50 mm and 50-100 mm, respectively. After the second skimming by the blade tiller most of the crop rests were worked in to the depth of 50-100 mm. After the pre-seeding soil preparation most of the rests were dislocated into the depth of 0-50 mm.
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